The SISAK System (part 1) On-line LS Detection (part 2)
|
|
- Martin Watkins
- 5 years ago
- Views:
Transcription
1 The SISAK System (part 1) On-line LS Detection (part 2) Jon Petter Omtvedt ASRC seminar, Tokai, 27 th September 2011 Outline Part 1 (SISAK system) 1) What is SISAK? 1) Principle 2) History and highlights 2) SISAK SHE research a. Adoption to SHE research b. Highlights c. Experience gained 3) Conclusions Slide 2 Outline Part 2 (LS Detection) 1) Background 1) Principle 2) History 2) On-line LS for SISAK a. Detection cells b. PSD electronics c. Scintillation yield monitoring 3) Conclusions SISAK Oslo Group and Collaborators Project leader: Prof. Jon Petter Omtvedt Senior scientists: Prof. Jorolf Alstad and Prof. Tor Bjørnstad. Post docs: Dr. Karsten Opel, Dr. Alexey Sabelnikov, Dr. Nalinava Sen Gupta. PhDs: Marcus Johansson (2000), Liv Stavsetra (2005), Li Zheng (2007), Fereshteh Samadani (2010), Darina Polakova (on-going). Masters: Kristin Fure (1998), Liv Stavsetra (1999), Elin A. Hult (1999), Jan-Erik Dyve (2000), Hanne Breivik (2001), Fereshteh Samadani (2006), Beyene G. Haile (2008), Frøydis Schulz (2009), Johannes Nilsen (2009). Key collaborators: Prof. Darleane Hoffman (LBNL), Dr. Ken Gregorich (LBNL), Prof. Heino Nitsche (LBNL), Dr. Matthias Schädel (GSI), Prof. Christoph Düllmann (GSI), Prof. Gunnar Skarnemark (Chalmers), Dr. Klaus Eberhardt (U. Mainz), Dr. Norbert Trautmann (U. Mainz), Prof. Andreas Türler (PSI), Dr. Alexander Yakushev (GSI). Many others: Students, technicians and other personnel at Oslo, LBNL, Mainz and GSI. Slide 3 Slide 4 Liquid-liquid Extraction System SISAK Part 1) What is SISAK? a. Principle b. History and highlights SISAK = Short-lived Isotopes Studied by the AKUFVEtechnique AKUFVE is a Swedish acronym for an arrangement for continuous investigations of distribution ratios in liquid-liquid extraction. Slide 6 1
2 Liquid-liquid Extraction (LLE) Purpose is to measure distribution of a given species between two immiscible phases: [ X D [ X Org Aq ] R ] R Org Aq / V / V Org Aq For continuous-flow system (SISAK) concentration is measured as activity / flow rate. Slide 7 Slide 8 Inlet/outlets Separation chamber Rotating cup Special centrifuges Phase boundary Special centrifuges Slide 9 Slide 10 Throttles control phase separation Phase separation monitored by measuring light transmission Slide 11 Slide 12 2
3 Centrifuge (H-10) developed in Gothenburg in the 1970s. Application and further development by a Gothenburg- Oslo-Mainz collaboration. Separation chamber volume reduced with each generation: ml 12 ml 0.3 ml Reinhardt & Rydberg, JActaChemScand 23 (1969) p2773. Persson et al. RCA48, (1989) p177. Commercialized by Swedish company MEAB AB. Special centrifuges Three generations Designed in 1970s Slide 13 Standard setup with degasser and main extraction stage Omtvedt et al., J. Alloys & Comp (1998) p303. Special centrifuges Three generations 0.3 ml chamber PEEK Two types: liquid-liquid gas-liquid Slide 14 History (I) History (II) Project initiated in 1969/70 by Janne Rydberg at Chalmers to see if the new H-33 centrifuges could be used to study shortlived chemical states. Soon it was realised that the system was suitable for studying short-lived nuclei. In 1971 the first on-line n-irradiation, separation and γ- measurement was performed on Cu nuclei. The name SISAK was adopted in 1972 (Short-lived Isotopes Studied by the AKUFVE technique). September 1972 SISAK moves to Oslo, which has a n- generator yielding 10x more neutrons (La, Ce and Pr nuclei are investigated). In 1974 a successful test is performed in Mainz. It s the first time a gas-jet has been successfully coupled to a chemical system. In 1975 the Göteborg-Mainz-Oslo collaboration is formed. In 1975 a new and much faster centrifuge is developed and tested, the H-10 ( SISAK 2"). In many successful experiments (La, and Ce) in Mainz are performed. Parallel to this a huge effort is done to develop chemical separation systems for Br, I, As, Tc, Ru and Pd. Experiments on Tc isotopes are started in In 1981 a new degasser is developed, which results in faster transport and less radiation health-hazards. First experiment at GSI in 1985 (on 243,244 Np). Slide 15 Slide 16 History (III) First experiment at GSI in 1985 (on 243,244 Np). In 1987 it is decided that SISAK will be used for transactinide research. This demands that the waste volumes must be reduced. New and smaller centrifuges ( SISAK 3") are developed and built in : SISAK 3 is used to study e.g. the 0.8-s 110 Tc and 0.8-s 113 Ru. In 1994 the 0.30 s nuclei 111 Tc was observed with SISAK. It s the most short lived nuclei ever observed after separation with an aqueous based system. Part 2) SISAK Outline SHE research a. Adoption to SHE research b. Highlights c. Experience gained Slide 17 3
4 History SISAK and SHE In chemical separations systems for Rf, Db and Sg are developed. Model experiments are done at GSI and PSI with the homologes Hf, Ta and W and in Mainz with Zr, Nb and Mo. In parallel, a α-detection system is developed, based on liquid scintillation counting techniques. In 1995 the first SISAK experiment at LBNL is performed. However, the experiments fails to detect Rf and Db. In further transactinide experiments are done at GSI (Sg), LBNL (Db) and PSI (Rf). Regretfully no transactinide activity is observed due to huge background and pile-up problems. Slide 19 Early SISAK Oslo-group Jorolf Alstad, Liv Stavsetra, Kristin Fure, Elin A. Hult, Marcus Johansson, Jon Petter Omtvedt in collaboration with Mainz and Gothenburg groups Slide 20 Basic SISAK System late 1990s Centrifuge Power Supply (Spintec Sf750) Orgainc phase reservoir (flow: ml/s) Centrifuge Power Supply (Spintec Sf750) Gas jet L/min Mixer Pump Org. Phase Purity sensor Degasser Main Extraction Aq. Phase Purity sensor Pump Aqueous phase reservoir (flow: ml/s) Amplifier Phase Purity monitor (PC with 0-5V analog inputs) Pump Power Supplies (0-35 V, 1 A / pump) Slide 21 Slide Cm( 18 O,5n) 261 Rf (78 s) 257 No (26 s) Preseparation w. RTC Time (T 1/2 ) All correlations W ith in two T / Mother energy (kev) Berkeley Gas-filled Seperator (BGS) Developed at LBNL by Kirback & Gregorich. Kirback et al., NIM A 484 (2002) p587. Omtvedt et al., J. Nucl. RadioSci. 3 (2002) p121. Preseparations removes unwanted background. Recoil Transfer Chamber (RTC). Allows chemical experiment to focus on chemical properties, not separation. Makes α liquidscintillation detection possible. Slide 23 Slide 24 4
5 Recoil energy (MeV) Preseparation w. RTC RTC windows New RTC: 100 x 40 mm window supported on a honeycomb grid with 80% transmission. Old RTC: 57 x 143 mm window with 80% transmission honeycomb. Slide 25 Slide 26 RTC Window Thickness 100 LBNL 2000: BGS - SISAK - LS-array 207 Pb( 64 Ni,1n) Pu( 48 Ca,4n) Pb(50Ti,1n)257Rf 249 Cf( 12 C,4n) 257 Rf 248 Cm( 18 O,5n) 261 Rf 197 Au( 22 Ne,xn) 219-x Ac 248 Bk( 19 O,5n) 262 Db Beam-particle mass (u) Slide 27 SHE Chemistry Oxalic Acid Rf extracted as a DBP complex from 6 M HNO 3 solution with HDBP in Toluene. Rf extracted with TOA from oxalic acid. Rf extracted with TOA from sulphuric acid. 0.1 M Oxalic acid. Rf is extracted as oxalate with tri-n-octylamine (TOA, 0.1 M) into toluene. This system do not need a washing step (as do the nitric- acid system). Reaction: 208 Pb(237 MeV 50 Ti 12+, 1n) 257 Rf performed at LBNL using the BGS with RTC. Measured ~70% extraction for Rf, comparable to Hf. Slide 29 Slide 30 5
6 Aq.phase Extraction from Sulphuric Acid Rf Extracted with TOA from Sulphuric Acid In a work by Yagodin et al.[1] it is shown that Zr is preferentially extracted (with respect to Hf) by tri- octylamine (TOA) from sulphate solutions. Results can be obtained at modest sulphate and TOA concentrations. Two experiments, in 2003 and 2005 (to be published) experiment with double detector arrays in order to measure activity in both phases simultaneously. [1] G.A.Yagodin et al. Proc. Int. Solv. Extraction Conf (ISEC71), the Hague, April 1971, paper 208. Results from LBNL 2003 & 2005 SISAK experiments Main result Rf seems to behave more like Hf than Zr when complexed with sulphate ligands. This is in accordance with theoretical expectations (Pershina et al. RCA 2007). Slide 31 Slide 32 Full SISAK system for SHE LBNL 2005: SISAK + 2 Detector Arrays Gas jet Org. phase Scintillator Org. phase Ar flushing To detectors (organic phase) Aq. phase Degasser Main Extraction Org. phase Aq.phase Extraction Scintillator Added in 2005 Ar flushing To detectors (aqueous phase) Slide 33 Slide 34 SISAK achievements Achievements Important Improvements The transactinide 257 Rf detected with SISAK liquid scintillation detectors, proved that studying SHE with SISAK is possible Only one throttle Rf extracted from 6 HNO 3 into toluene with HDBP, first SISAK chemistry experiment on a SHE. - Rf extracted from oxalic acid into toluene with TOA Rf extracted from sulphuric acid into toluene with TOA Rf extracted from H 2 SO 4, simultaneous detection of both phases enhances yield and precision Knowledge from BGS-RTC used in building two RTC s for TASCA, one large and one small New small RTC built for BGS Db detected with SISAK LS-detection system First GSI experiment with SISAK@TASCA, testing Hs-chemistry with Os. Org. feed Premixer 0.7 mm (i.d.) tubes 2005 Slide 35 Slide 36 6
7 Hassium Equilibrium Extraction Reaction: HsO 4 + 2OH - *HsO 4 (OH) 2 ] 2- Assumptions: OsO 4 is primarily dissolved in organic phase. [OsO 4 (OH) 2 ] 2- primarily dissolved in aqueous phase. Experiment performed by von Zweidorf et al., but could not distinguish between Os and Hs behaviour. von Zweidorf et al.: Radiochim. Acta 92, 855 (2004). Slide 37 Samadani, PhD thesis Univ. Oslo (2010). Samadani et al., RCA 98 (2010) p757. Samadani et al., to be submitted to RCA. System for investigating Hs Developed with γ-emitting Os (OCL) and α-emitting Os (GSI). Slide 38 Equilibrium condition Premixer Conclusions Extraction of OsO 4 into toluene, from Samadani et al., RCA98 (2010) (DOI /ract ) Phases must be mixed thoroughly enough to ensure extraction under equilibrium conditions. Slow kinetics will lead to severe decay loss. Efficient mixing very important! SISAN ability to measure 4-s 257 Rf proven in many experiments and for three different chemistries. Likely that SISAK can also handle Db and Sg without problem. SISAK chemistry to study Hs developed. SISAK detector system very effective and true on-line can be used for other liquid-phase experiments. Slide 39 Slide 40 SISAK Oslo Group and Collaborators Project leader: Prof. Jon Petter Omtvedt Senior scientists: Prof. Jorolf Alstad and Prof. Tor Bjørnstad. Post docs: Dr. Karsten Opel, Dr. Alexey Sabelnikov, Dr. Nalinava Sen Gupta. PhDs: Marcus Johansson (2000), Liv Stavsetra (2005), Li Zheng (2007), Fereshteh Samadani (2010), Darina Polakova (on-going). Masters: Kristin Fure (1998), Liv Stavsetra (1999), Elin A. Hult (1999), Jan-Erik Dyve (2000), Hanne Breivik (2001), Fereshteh Samadani (2006), Beyene G. Haile (2008), Frøydis Schulz (2009), Johannes Nilsen (2009). Key collaborators: Prof. Darleane Hoffman (LBNL), Dr. Ken Gregorich (LBNL), Prof. Heino Nitsche (LBNL), Dr. Matthias Schädel (GSI), Prof. Christoph Düllmann (GSI), Prof. Gunnar Skarnemark (Chalmers), Dr. Klaus Eberhardt (U. Mainz), Dr. Norbert Trautmann (U. Mainz), Prof. Andreas Türler (PSI), Dr. Alexander Yakushev (GSI). Many others: Students, technicians and other personnel at Oslo, LBNL, Mainz and GSI. ANNOUNCEMENT: Post. Doc. position 3 year post. doc. position in Oslo will be announced in a couple of weeks. Will be responsible for SISAK system. Work at OCL and within SISAK SHE collaboration. Can also be involved in investigating thorium (using LLE) for use as fuel in Nuclear Power Plants. Many exciting challenges and possibilities! Slide 41 Slide 42 7
8 The end (of part 1) 8
Present status of SISAK and future plans
Present status of SISAK and future plans Presented at 2 nd SHE Collaboration Meeting by Jon Petter Omtvedt Shinshu University, Nagano, 23 rd September 2011 Outline 1) What is SISAK? 1) Principle 2) History
More informationDevelopment of a rapid solvent extraction apparatus for aqueous chemistry of the heaviest elements
Development of a rapid solvent extraction apparatus for aqueous chemistry of the heaviest elements Yukiko Komori for a RIKEN Niigata Univ. JAEA Univ. Tsukuba Tohoku Univ. Univ. Oslo collaboration (The
More informationProduction and decay studies of 261 Rf, 262. Db, 265 Sg, and 266 Bh for superheavy element chemistry at RIKEN GARIS
Production and decay studies of 261 Rf, 262 Db, 265 Sg, and 266 Bh for superheavy element chemistry at RIKEN GARIS RIKEN Nishina Center Hiromitsu Haba for RIKEN SHE Chemistry Collaboration CONTENTS 1.
More informationDevelopment of a rapid solvent extraction apparatus coupled to the GARIS gas-jet transport system for aqueous chemistry of the heaviest elements
Development of a rapid solvent extraction apparatus coupled to the GARIS gas-jet transport system for aqueous chemistry of the heaviest elements Y. Komori 1, H. Haba 1, K. Ooe 2, D. Kaji 1, Y. Kasamatsu
More informationFirst synthesis and investigation
First synthesis and investigation ofsg(co) 6 Julia Even Helmholtz-Institut Mainz for the CO-collaboration Outline Motivation towards new SHE compounds Experiments with lighter homologs Mo and W at the
More informationD1. TASCA Focal Plane Detector Setup (Physics) - first mounting and detector tests
D1. TASCA Focal Plane Detector Setup (Physics) - first mounting and detector tests setup description installation of the PC (position check) detector & electronics next steps completion of the detector
More informationAchievements using the continuous SISAK. α-liquid Scintillation Technique, and its application in detection of 257 Rf atoms.
Achievements using the continuous SISAK α-liquid Scintillation Technique, and its application in detection of 257 Rf atoms Liv Stavsetra Contents Contents............................................. Abstract.............................................
More informationNews from the chemistry of heaviest elements around flerovium, element Christoph E. Düllmann
Christoph E. Düllmann www.superheavies.de duellmann@uni mainz.de News from the chemistry of heaviest elements around flerovium, element 114 1 2 H He 3 4 5 6 7 8 9 10 Li Be B C N O F Ne 11 12 13 14 15 16
More informationG SI Darmstadt. TASCA TransActinide Separator and Chemistry Apparatus
TransActinide Separator and Chemistry Apparatus 1st Workshop on Recoil Separator for Superheavy Element Chemistry, March 2002, GSI ==> community formed (> 70 participants, 10 countries, > 20 institutes)
More informationAqueous Chemistry of Rf and Db Y. Nagame for JAEA-RIKEN-Osaka-Niigata-TMU-Tsukuba- Kanazawa-Shizuoka-GSI-Mainz collaboration
Aqueous Chemistry of Rf and Db Y. Nagame for JAEA-RIKEN-Osaka-Niigata-TMU-Tsukuba- Kanazawa-Shizuoka-GSI-Mainz collaboration 7 th Workshop on the Chemistry of the Heaviest Elements Mainz, Germany, October
More informationPreparation of 249 Cf targets for the synthesis of element 120
Preparation of 249 targets for the synthesis of element 120 J. Runke 1, Ch.E. Düllmann 1,2,3, K. Eberhardt 2, P.A. Ellison 4,5, K.E. Gregorich 4, E. Jäger 1, B. Kindler 1, J. Krier 1, B. Lommel 1, C. Mokry
More informationNuclear and Chemical Studies with Hassium Isotopes
Wir schaffen Wissen heute für morgen Paul Scherrer Institute and Bern University Andreas Türler for a TUM, GSI, JINR, Mainz, JAEA, LBNL, UCB, Oslo, Lund, IET, IMP, PSI collaboration Nuclear and Chemical
More informationGas-phase chemistry of element 114, flerovium
EPJ Web of Conferences 11, 7 (21) DOI: 1.151/epjconf/21117 Nobel Symposium NS1 Chemistry and Physics of Heavy and Superheavy Elements Gas-phase chemistry of element 114, flerovium Alexander Yakushev 1,2,a
More informationRIKEN GARIS for Superheavy Element Chemistry
RIKEN GARIS for Superheavy Element Chemistry Nishina Center, RIKEN Hiromitsu Haba CONTENTS 1. Introduction 2. Present status of GARIS 2.1. Developments in 2008 Rotating 248 Cm target and new gas-jet chamber
More informationRadiometric Dating (tap anywhere)
Radiometric Dating (tap anywhere) Protons Neutrons Electrons Elements on the periodic table are STABLE Elements can have radioactive versions of itself called ISOTOPES!! Page 1 in your ESRT has your list!
More informationINSTRUCTIONS: CHEM Exam I. September 13, 1994 Lab Section
CHEM 1314.05 Exam I John I. Gelder September 13, 1994 Name TA's Name Lab Section Please sign your name below to give permission to post, by the last 4 digits of your student I.D. number, your course scores
More informationSolutions and Ions. Pure Substances
Class #4 Solutions and Ions CHEM 107 L.S. Brown Texas A&M University Pure Substances Pure substance: described completely by a single chemical formula Fixed composition 1 Mixtures Combination of 2 or more
More informationChemistry 185 Exam #2 - A November 5, Lab Day and Time: Instructions. 1. Do not open the exam until you are told to start.
Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this
More information8. Relax and do well.
CHEM 1225 Exam III John III. Gelder April 8, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last two pages includes a periodic table and
More informationChem GENERAL CHEMISTRY I MIDTERM EXAMINATION
Concordia University CHEM 205 Fall 2009, B LAST NAME: FIRST NAME: STUDENT ID: Chem 205 - GENERAL CHEMISTRY I MIDTERM EXAMINATION PLEASE READ THIS BOX WHILE WAITING TO START INSTRUCTIONS: Calculators are
More informationUltra-Pure 163 Ho Samples for Neutrino Mass Measurements
Ultra-Pure 163 Ho Samples for Neutrino Mass Measurements T. Kieck 1, H. Dorrer 1, Ch. E. Düllmann 1,2, K. Eberhardt 1, L. Gamer 3, L. Gastaldo 3, C. Hassel 3, U. Köster 4, B. Marsh 5, Ch. Mokry 1, S. Rothe
More informationHANDOUT SET GENERAL CHEMISTRY II
HANDOUT SET GENERAL CHEMISTRY II Periodic Table of the Elements 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 IA VIIIA 1 2 H He 1.00794 IIA IIIA IVA VA VIA VIIA 4.00262 3 Li 6.941 11 Na 22.9898
More informationChemistry GARIS
Chemistry planned @ GARIS Cyclotron Center, RIKEN Hiromitsu Haba 1. Introduction 2. Gas-jet chamber coupled to GARIS 3. Search for SHE nuclides for chemical experiments 4. Future plans 1. Introduction
More informationDetectors for the measurement of ionizing radiation
For the measurement of radiation, the following reactions during the irradiation of matter are predominantly utilized: Ionization in gases (Ionization chamber, proportional flow counter, release counter)
More informationSynthesis of New Elements and New Approaches in SHE Research
ECOS Town Meeting Orsay 2014 Synthesis of New Elements and New Approaches in SHE Research Michael Block GSI Darmstadt and Helmholtz Institute Mainz Courtesy Ch.E. Düllmann Superheavy Elements Current Status
More informationLast 4 Digits of USC ID:
Chemistry 05 B Practice Exam Dr. Jessica Parr First Letter of last Name PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: Last 4 Digits of USC ID: Lab TA s Name: Question Points Score Grader 8 2 4 3 9 4 0
More informationCHEM 167 FINAL EXAM MONDAY, MAY 2 9:45 11:45 A.M GILMAN HALL
PROF. JOHN VERKADE SPRING 2005 THIS EXAM CONSISTS OF 12 QUESTIONS ON 9 PAGES CHEM 167 HOUR EXAM IV APRIL 20, 2005 SEAT NO. NAME RECIT. INSTR. RECIT. SECT. GRADING PAGE Page 2 Page 3 Page 4 Page 5 Page
More information(please print) (1) (18) H IIA IIIA IVA VA VIA VIIA He (2) (13) (14) (15) (16) (17)
CHEM 10113, Quiz 3 September 28, 2011 Name (please print) All equations must be balanced and show phases for full credit. Significant figures count, show charges as appropriate, and please box your answers!
More informationAtoms and the Periodic Table
Atoms and the Periodic Table Parts of the Atom Proton Found in the nucleus Number of protons defines the element Charge +1, mass 1 Parts of the Atom Neutron Found in the nucleus Stabilizes the nucleus
More informationPerformance of the Gas-jet Transport System Coupled to the RIKEN Gas-filled Recoil Ion Separator GARIS for the 238 U( 22 Ne, 5n) 255 No Reaction
Journal of Nuclear and Radiochemical Sciences, Vol. 9, No.1, pp. 7-31, 8 Performance of the Gas-jet Transport System Coupled to the RIKEN Gas-filled Recoil Ion Separator GARIS for the 38 U( Ne, 5n) 55
More informationCHEM 10123/10125, Exam 2
CHEM 10123/10125, Exam 2 March 7, 2012 (50 minutes) Name (please print) Please box your answers, and remember that significant figures, phases (for chemical equations), and units do count! 1. (13 points)
More informationTASCA Commissioning Experiments
TASCA Commissioning Experiments Lessons from the BGS Ken Gregorich Lawrence Berkeley National Laboratory But First: What about the gas? Then: Expected cross sections for Rf-Hs with 244 Pu targets And:
More informationAlpha Particle: or Beta Particle: or Neutron: or n 0. Positron: Proton: or p + Gamma Ray:
Key Worksheet 21 Nuclear Chemistry Objectives To be able to write and use a nuclear chemical equation. To be able to predict the missing reactants or products in a nuclear chemical reaction. To be able
More informationSpin Cut-off Parameter of Nuclear Level Density and Effective Moment of Inertia
Commun. Theor. Phys. (Beijing, China) 43 (005) pp. 709 718 c International Academic Publishers Vol. 43, No. 4, April 15, 005 Spin Cut-off Parameter of Nuclear Level Density and Effective Moment of Inertia
More informationStudies of Flerovium Homologs with Macrocyclic Extractants
Studies of Flerovium Homologs with Macrocyclic Extractants John D. Despotopulos 1,2, Kelly N. Kmak 3, Narek Gharibyan 1, Roger A. Henderson 1, William Kerlin 2, Kenton J. Moody 1, Ralf Sudowe 2, Dawn A.
More informationDO NOW: Retrieve your projects. We will be reviewing them again today. Textbook pg 23, answer questions 1-3. Use the section 1.2 to help you.
DO NOW: Retrieve your projects. We will be reviewing them again today. Textbook pg, answer questions. Use the section. to help you. Chapter test is FRIDAY. The Periodic Table of Elements 8 Uuo Uus Uuh
More information(C) Pavel Sedach and Prep101 1
(C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 1 (C) Pavel Sedach and Prep101 2 (C) Pavel Sedach and Prep101 2 (C) Pavel Sedach and Prep101 3 (C) Pavel Sedach and Prep101 3 (C) Pavel Sedach
More informationFaculty of Natural and Agricultural Sciences Chemistry Department. Semester Test 1. Analytical Chemistry CMY 283. Time: 120 min Marks: 100 Pages: 6
Faculty of Natural and Agricultural Sciences Chemistry Department Semester Test 1 Analytical Chemistry CMY 283 Date: 5 September 2016 Lecturers : Prof P Forbes, Dr Laurens, Mr SA Nsibande Time: 120 min
More informationCOMPARATIVE STUDY OF PIGE, PIXE AND NAA ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF MINOR ELEMENTS IN STEELS
COMPARATIVE STUDY OF PIGE, PIXE AND NAA ANALYTICAL TECHNIQUES FOR THE DETERMINATION OF MINOR ELEMENTS IN STEELS ANTOANETA ENE 1, I. V. POPESCU 2, T. BÃDICÃ 3, C. BEªLIU 4 1 Department of Physics, Faculty
More informationPart 2. Multiple choice (use answer card). 90 pts. total. 3 pts. each.
1 Exam I CHEM 1303.001 Name (print legibly) Seat no. On my honor, I have neither given nor received unauthorized aid on this exam. Signed Date Part 1. Nomenclature. 10 pts. total. 2 pts. each. Fill in
More information8. Relax and do well.
CHEM 1314.03 Exam I John I. Gelder September 25, 1997 Name TA's Name Lab Section Please sign your name below to give permission to post, by the last 4 digits of your student I.D. number, your course scores
More informationRITU and the GREAT Spectrometer
RITU and the GREAT Spectrometer Cath Scholey Department of Physics University of Jyväskylä 19 th March 2006 3rd TASCA Detector Group Meeting, GSI Darmstadt C. Scholey (JYFL, Finland) RITU and the GREAT
More informationLaser Spectroscopy on Bunched Radioactive Ion Beams
Laser Spectroscopy on Bunched Radioactive Ion Beams Jon Billowes University of Manchester Balkan School on Nuclear Physics, Bodrum 2004 Lecture 1. 1.1 Nuclear moments 1.2 Hyperfine interaction in free
More informationPLEASE PRINT YOUR NAME IN BLOCK LETTERS. Practice Exam 3. Last 4 Digits of USC ID:
Chemistry 105 B Practice Exam 3 Dr. Jessica Parr First Letter of last Name PLEASE PRINT YOUR NAME IN BLOCK LETTERS Name: Last 4 Digits of USC ID: Lab TA s Name: Question Points Score Grader 1 18 2 14 3
More information02/05/09 Last 4 Digits of USC ID: Dr. Jessica Parr
Chemistry 05 B First Letter of PLEASE PRINT YOUR NAME IN BLOCK LETTERS Exam last Name Name: 02/05/09 Last 4 Digits of USC ID: Dr. Jessica Parr Lab TA s Name: Question Points Score Grader 2 2 9 3 9 4 2
More information8. Relax and do well.
CHEM 1314 3;30 pm Theory Exam III John III. Gelder November 13, 2002 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 8 different pages. The last page include a periodic
More informationM09/4/CHEMI/SPM/ENG/TZ1/XX+ CHEMISTRY. Monday 18 May 2009 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES
M09/4/CHEMI/SPM/ENG/TZ1/XX+ 22096110 CHEMISTRY standard level Paper 1 Monday 18 May 2009 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES Do not open this examination paper until instructed to do so.
More informationSecondary Support Pack. be introduced to some of the different elements within the periodic table;
Secondary Support Pack INTRODUCTION The periodic table of the elements is central to chemistry as we know it today and the study of it is a key part of every student s chemical education. By playing the
More information7) Applications of Nuclear Radiation in Science and Technique (1) Analytical applications (Radiometric titration)
7) Applications of Nuclear Radiation in Science and Technique (1) (Radiometric titration) The radioactive material is indicator Precipitation reactions Complex formation reactions Principle of a precipitation
More information7. Relax and do well.
CHEM 1215 Exam II John II. Gelder October 7, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility
More informationChem Exam 1. September 26, Dr. Susan E. Bates. Name 9:00 OR 10:00
Chem 1711 Exam 1 September 26, 2013 Dr. Susan E. Bates Name 9:00 OR 10:00 N A = 6.022 x 10 23 mol 1 I A II A III B IV B V B VI B VII B VIII I B II B III A IV A V A VI A VII A inert gases 1 H 1.008 3 Li
More informationLab Day and Time: Instructions. 1. Do not open the exam until you are told to start.
Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this
More informationFaculty of Natural and Agricultural Sciences Chemistry Department. Semester Test 1 MEMO. Analytical Chemistry CMY 283
Faculty of Natural and Agricultural Sciences Chemistry Department Semester Test 1 MEMO Analytical Chemistry CMY 283 Date: 5 September 2016 Lecturers : Prof P Forbes, Dr Laurens, Mr SA Nsibande Time: 90
More informationB. X : in phase; Y: out of phase C. X : out of phase; Y: in phase D. X : out of phase; Y: out of phase
2015 April 24 Exam 3 Physics 106 Circle the letter of the single best answer. Each question is worth 1 point Physical Constants: proton charge = e = 1.60 10 19 C proton mass = m p = 1.67 10 27 kg electron
More informationWhat is the periodic table?
The periodic table of the elements represents one of the greatest discoveries in the history of science that certain elements, the basic chemical substances from which all matter is made, resemble each
More informationMANY ELECTRON ATOMS Chapter 15
MANY ELECTRON ATOMS Chapter 15 Electron-Electron Repulsions (15.5-15.9) The hydrogen atom Schrödinger equation is exactly solvable yielding the wavefunctions and orbitals of chemistry. Howev er, the Schrödinger
More informationCHEM 171 EXAMINATION 1. October 9, Dr. Kimberly M. Broekemeier. NAME: Key
CHEM 171 EXAMINATION 1 October 9, 008 Dr. Kimberly M. Broekemeier NAME: Key I A II A III B IV B V B VI B VII B VIII I B II B III A IV A V A VI A VII A inert gase s 1 H 1.008 Li.941 11 Na.98 19 K 9.10 7
More information5 questions, 3 points each, 15 points total possible. 26 Fe Cu Ni Co Pd Ag Ru 101.
Physical Chemistry II Lab CHEM 4644 spring 2017 final exam KEY 5 questions, 3 points each, 15 points total possible h = 6.626 10-34 J s c = 3.00 10 8 m/s 1 GHz = 10 9 s -1. B= h 8π 2 I ν= 1 2 π k μ 6 P
More informationGuide to the Extended Step-Pyramid Periodic Table
Guide to the Extended Step-Pyramid Periodic Table William B. Jensen Department of Chemistry University of Cincinnati Cincinnati, OH 452201-0172 The extended step-pyramid table recognizes that elements
More informationM11/4/CHEMI/SPM/ENG/TZ2/XX CHEMISTRY STANDARD LEVEL PAPER 1. Monday 9 May 2011 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES
M11/4/CHEMI/SPM/ENG/TZ/XX 116116 CHEMISTRY STANDARD LEVEL PAPER 1 Monday 9 May 011 (afternoon) 45 minutes INSTRUCTIONS TO CANDIDATES Do not open this examination paper until instructed to do so. Answer
More informationEssential Chemistry for Biology
1 Chapter 2 Essential Chemistry for Biology Biology and Society: More Precious than Gold A drought is a period of abnormally dry weather that changes the environment and one of the most devastating disasters.
More informationThe Periodic Table of the Elements
The Periodic Table of the Elements All matter is composed of elements. All of the elements are composed of atoms. An atom is the smallest part of an element which still retains the properties of that element.
More informationCHEM 107 (Spring-2004) Exam 2 (100 pts)
CHEM 107 (Spring-2004) Exam 2 (100 pts) Name: ------------------------------------------------------------------------, SSN -------------------------------- LAST NAME, First (Circle the alphabet segment
More informationLab Day and Time: Instructions. 1. Do not open the exam until you are told to start.
Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this
More informationCHEM 172 EXAMINATION 1. January 15, 2009
CHEM 17 EXAMINATION 1 January 15, 009 Dr. Kimberly M. Broekemeier NAME: Circle lecture time: 9:00 11:00 Constants: c = 3.00 X 10 8 m/s h = 6.63 X 10-34 J x s J = kg x m /s Rydberg Constant = 1.096776 x
More informationModified from: Larry Scheffler Lincoln High School IB Chemistry 1-2.1
Modified from: Larry Scheffler Lincoln High School IB Chemistry 1-2.1 The development of the periodic table brought a system of order to what was otherwise an collection of thousands of pieces of information.
More informationChem 51, Spring 2015 Exam 8 (Chp 8) Use your Scantron to answer Questions There is only one answer for each Question. Questions are 2 pt each.
Chem 51, Spring 2015 Exam 8 (Chp 8) Name 120 pt Use your Scantron to answer Questions 1-32. There is only one answer for each Question. Questions are 2 pt each. CHP 8.1 Solutions are Mixtures 1. A saturated
More informationAdvanced Placement. Chemistry. Integrated Rates
Advanced Placement Chemistry Integrated Rates 204 47.90 9.22 78.49 (26) 50.94 92.9 80.95 (262) 52.00 93.94 83.85 (263) 54.938 (98) 86.2 (262) 55.85 0. 90.2 (265) 58.93 02.9 92.2 (266) H Li Na K Rb Cs Fr
More informationMarks for each question are as indicated in [] brackets.
Name Student Number CHEMISTRY 140 FINAL EXAM December 10, 2002 Numerical answers must be given with appropriate units and significant figures. Please place all answers in the space provided for the question.
More information8. Relax and do well.
CHEM 1225 Exam I John I. Gelder February 4, 1999 Name KEY TA's Name Lab Section Please sign your name below to give permission to post your course scores on homework, laboratories and exams. If you do
More informationLab Day and Time: Instructions. 1. Do not open the exam until you are told to start.
Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this
More informationChemistry Standard level Paper 1
Chemistry Standard level Paper 1 Thursday 12 May 2016 (morning) 45 minutes Instructions to candidates Do not open this examination paper until instructed to do so. Answer all the questions. For each question,
More informationChemistry of the Heaviest Elements
6th Asian-Pacific Symposium on Radiochemistry September 17-22, 2017, Jeju Island, Korea Chemistry of the Heaviest Elements Yuichiro Nagame 1,2 1 Advanced Science Research Center, JAEA 2 Graduate School
More informationRADIOLOGICAL CHARACTERIZATION Laboratory Procedures
RADIOLOGICAL CHARACTERIZATION Laboratory Procedures LORNA JEAN H. PALAD Health Physics Research Unit Philippine Nuclear Research Institute Commonwealth Avenue, Quezon city Philippines 3-7 December 2007
More informationChapter 12 The Atom & Periodic Table- part 2
Chapter 12 The Atom & Periodic Table- part 2 Electrons found outside the nucleus; negatively charged Protons found in the nucleus; positive charge equal in magnitude to the electron s negative charge Neutrons
More information7. Relax and do well.
CHEM 1215 Exam II John II. Gelder October 13, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 5 different pages. The last page includes a periodic table and a solubility
More informationMade the FIRST periodic table
Made the FIRST periodic table 1869 Mendeleev organized the periodic table based on the similar properties and relativities of certain elements Later, Henri Moseley organized the elements by increasing
More informationCHEM 108 (Fall-2003) Exam Final (100 pts)
CHEM 108 (Fall-2003) Exam Final (100 pts) Name: -------------------------------------------------------------------------------, SSN -------------------------------- LAST NAME, First (Circle the alphabet
More informationThe Periodic Table of Elements
The Periodic Table of Elements 8 Uuo Uus Uuh (9) Uup (88) Uuq (89) Uut (8) Uub (8) Rg () 0 Ds (9) 09 Mt (8) 08 Hs (9) 0 h () 0 Sg () 0 Db () 0 Rf () 0 Lr () 88 Ra () 8 Fr () 8 Rn () 8 At (0) 8 Po (09)
More information8. Relax and do well.
CHEM 1215 Exam III John III. Gelder November 11, 1998 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last page includes a periodic table and
More informationLab Day and Time: Instructions. 1. Do not open the exam until you are told to start.
Name: Lab Day and Time: Instructions 1. Do not open the exam until you are told to start. 2. This exam is closed note and closed book. You are not allowed to use any outside material while taking this
More informationThe neutron multiplicity study at spontaneous fission of short-lived isotopes (z > 100) using VASSILISSA recoil separator
The neutron multiplicity study at spontaneous fission of short-lived isotopes (z > 100) using VASSILISSA recoil separator Svirikhin A.I. Joint Institute for Nuclear Research, Dubna, Russia Manipal University,
More informationTowards TASCA
TASCA Workshop 2009 Towards SHIPTRAP @ TASCA Michael Block SHIPTRAP Physics Program High-Precision Mass Measurements Trap-Assisted Nuclear Spectroscopy In-Trap Nuclear Spectroscopy Laser Spectroscopy Chemistry?
More informationINSTRUCTIONS: Exam III. November 10, 1999 Lab Section
CHEM 1215 Exam III John III. Gelder November 10, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last page includes a periodic table and
More informationThe Search for Heavy Elements
Nuclear Science A Teacher s Guide to the Nuclear Science Wall Chart 1998 Contemporary Physics Education Project (CPEP) Chapter 8 The Search for Heavy Elements When a nucleus captures a neutron, it often
More informationPERIODIC TABLE OF THE ELEMENTS
Useful Constants and equations: K = o C + 273 Avogadro's number = 6.022 x 10 23 d = density = mass/volume R H = 2.178 x 10-18 J c = E = h = hc/ h = 6.626 x 10-34 J s c = 2.998 x 10 8 m/s E n = -R H Z 2
More informationFall 2011 CHEM Test 4, Form A
Fall 2011 CHEM 1110.40413 Test 4, Form A Part I. Multiple Choice: Clearly circle the best answer. (60 pts) Name: 1. The common constituent in all acid solutions is A) H 2 SO 4 B) H 2 C) H + D) OH 2. Which
More informationHANDOUT SET GENERAL CHEMISTRY I
HANDOUT SET GENERAL CHEMISTRY I Periodic Table of the Elements 1 2 3 4 5 6 7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 IA VIIIA 1 2 H He 1.00794 IIA IIIA IVA VA VIA VIIA 4.00262 3 Li 6.941 11 Na 22.9898
More informationChem October 31, Dr. Susan E. Bates
Chem 1711 Exam 2 ID#: 2013171 October 31, 2013 Dr. Susan E. Bates Name 9:00 OR 10:00 PV = nrt 1 atm = 760 mmhg = 101.3 kpa u = (3RT/M m ) 1/2 R = 0.08206 L atm K 1 mol 1 OR 8.314 J K 1 mol 1 22.4 L/mol
More informationIf anything confuses you or is not clear, raise your hand and ask!
CHM 1045 Dr. Light s Section December 10, 2002 FINAL EXAM Name (please print) Recitation Section Meeting Time This exam consists of six pages. Make sure you have one of each. Print your name at the top
More informationChemistry 431 Practice Final Exam Fall Hours
Chemistry 431 Practice Final Exam Fall 2018 3 Hours R =8.3144 J mol 1 K 1 R=.0821 L atm mol 1 K 1 R=.08314 L bar mol 1 K 1 k=1.381 10 23 J molecule 1 K 1 h=6.626 10 34 Js N A = 6.022 10 23 molecules mol
More information1 Genesis 1:1. Chapter 10 Matter. Lesson. Genesis 1:1 In the beginning God created the heavens and the earth. (NKJV)
1 Genesis 1:1 Genesis 1:1 In the beginning God created the heavens and the earth. (NKJV) 1 Vocabulary Saturated having all the solute that can be dissolved at that temperature Neutron a particle with no
More informationFirst on the South Pole, 14 December, 1911
First on the South Pole, 14 December, 1911 The potential use of small transportable neutron generators for studies of industrial mass flow Tor Bjørnstad Institute for Energy Technology (IFE) and Uniersity
More informationNucleus. Electron Cloud
Atomic Structure I. Picture of an Atom Nucleus Electron Cloud II. Subatomic particles Particle Symbol Charge Relative Mass (amu) protons p + +1 1.0073 neutrons n 0 1.0087 electrons e - -1 0.00054858 Compare
More informationMethod of active correlations in the experiment 249 Cf+ 48 Ca n
Method of active correlations in the experiment 249 Cf+ 48 Ca 297 118 +3n Yu.S.Tsyganov, A.M.Sukhov, A.N.Polyakov Abstract Two decay chains originated from the even-even isotope 294 118 produced in the
More information8. Relax and do well.
CHEM 1014 Exam I John I. Gelder September 16, 1999 Name TA's Name Lab Section Please sign your name below to give permission to post your course scores on homework, laboratories and exams. If you do not
More informationCHM 101 PRACTICE TEST 1 Page 1 of 4
CHM 101 PRACTICE TEST 1 Page 1 of 4 Please show calculations (stuffed equations) on all mathematical problems!! On the actual test, "naked answers, with no work shown, will receive no credit even if correct.
More informationGrade 11 Science Practice Test
Grade 11 Science Practice Test Nebraska Department of Education 2012 Directions: On the following pages of your test booklet are multiple-choice questions for Session 1 of the Grade 11 Nebraska State Accountability
More informationSCIENCE 1206 UNIT 2 CHEMISTRY. September 2017 November 2017
SCIENCE 1206 UNIT 2 CHEMISTRY September 2017 November 2017 UNIT OUTLINE 1. Review of Grade 9 Terms & the Periodic Table Bohr diagrams Evidence for chemical reactions Chemical Tests 2. Naming & writing
More information8. Relax and do well.
CHEM 15 Exam II John II. Gelder March 4, 1999 Name TA's Name Lab Section INSTRUCTIONS: 1. This examination consists of a total of 7 different pages. The last two pages includes a periodic table, a solubility
More information