Cryogenics for bolometric interferometry: The BRAIN experiment
|
|
|
- Meryl Greer
- 5 years ago
- Views:
Transcription
1 Cryogenics for bolometric interferometry: The BRAIN experiment, P. de Bernardis, C. Giordano, S. Masi, S. Peterzen, A. Schillaci Università di Roma, La Sapienza Bolometric Interferometry for the B-mode search APC - Paris, June 2008
2 The Need for Cryogenics Detector noise: - Johnson: NEP ~ TB1/2 - Phonons: NEP ~ TB - Photons: NEP ~ TS5/2 For BOOMERanG B03 145GHz detectors: - Johnson: NEP = 1.3x10-17 W/sqrt(Hz) - Phonons: NEP = 1.0x10-17 W/sqrt(Hz) (Masi et al, A&A, 458, (2006)) 2
3 The Need for Cryogenics Detector noise: - Johnson: NEP ~ TB1/2 - Phonons: NEP ~ TB - Photons: NEP ~ TS5/2 For BOOMERanG B03 145GHz detectors: - Johnson: NEP = 1.3x10-17 W/sqrt(Hz) - Phonons: NEP = 1.0x10-17 W/sqrt(Hz) (Masi et al, A&A, 458, (2006)) By using the BRAIN pathfinder data we estimated the brightness temperature of the atmosphere in DomeC at 150GHz: T ~ 20K W~2-5pW (BRAIN bandwidth) Photons: NEP ~ 2.0x10-17 W/sqrt(Hz) 3
4 The Need for Cryogenics Detector noise: - Johnson: NEP ~ TB1/2 - Phonons: NEP ~ TB - Photons: NEP ~ TS5/2 For BOOMERanG B03 145GHz detectors: - Johnson: NEP = 1.3x10-17 W/sqrt(Hz) - Phonons: NEP = 1.0x10-17 W/sqrt(Hz) (Masi et al, A&A, 458, (2006)) By using the BRAIN pathfinder data we estimated the brightness temperature of the atmosphere in DomeC at 150GHz: T ~ 20K W~2-5pW (BRAIN bandwidth) Photons: NEP ~ 2.0x10-17 W/sqrt(Hz) 4
5 The Need for Cryogenics Detector noise: - Johnson: NEP ~ TB1/2 - Phonons: NEP ~ TB - Photons: NEP ~ TS5/2 T ~ 350mK For BOOMERanG B03 145GHz detectors: - Johnson: NEP = 1.3x10-17 W/sqrt(Hz) - Phonons: NEP = 1.0x10-17 W/sqrt(Hz) (Masi et al, A&A, 458, (2006)) By using the BRAIN pathfinder data we estimated the brightness temperature of the atmosphere in DomeC at 150GHz: T ~ 20K W~2-5pW (BRAIN bandwidth) Photons: NEP ~ 2.0x10-17 W/sqrt(Hz) 5
6 How to achieve 300mK Standard wet cryostat: (BOOMERanG, Masi et Cryogenics, 39, ) al 1999, - vacuum chamber - LiN2 stage - V4He shield - L4He stage This system is able to reach ~4.2K. By pumping on the L4He stage we can reduce the temperature according to the ClausiusClapeyron law: P e L/ RT 6
7 How to achieve 300mK Standard wet cryostat: (BOOMERanG, Masi et Cryogenics, 39, ) al 1999, - vacuum chamber - LiN2 stage - V4He shield - L4He stage This system is able to reach ~4.2K. By pumping on the L4He stage we can reduce the temperature according to the ClausiusClapeyron law: P e L/ RT Limits: - exponential dependence Q =n H V HL - cooling power decrement TLIM ~ 1K 7
8 How to achieve 300mK 3 He fridge: (BOOMERanG, Masi et al 1998, Cryogenics, 38, ) 1) cryopump warm ~ 20K, 3He is desorbed, condensates on the Heat Exchanger and goes inside the evaporator 2) cryopump cold ~5K, 3He vapour are absorbed and the temperature of the L3He decreases as P e L/ RT until TLIM is reached 3) thermal equilibrium, L3He evaporates according to Q =n H V HL and is absorbed by the charcoal 8
9 How to achieve 300mK in DomeC - To bring there huge quantity of cryogens is expensive and inefficient - Low pressure ~600mbar, to liquify on-site Nitrogen and Helium is not trivial, the cost of the installation and maintenance is huge - Refilling the cryostat during the winter is a challenge 9
10 How to achieve 300mK in DomeC - To bring there huge quantity of cryogens is expensive and inefficent - Low pressure ~600mbar, to liquify on-site Nitrogen and Helium is not trivial, the cost of the installation and manteinance is huge - Refilling the cryostat during the winter is a challenge Wet cryostats are not suitable for winter observations in DomeC 10
11 How to achieve 300mK in DomeC - To bring there huge quantity of cryogens is expensive and inefficent - Low pressure ~600mbar, to liquify on-site Nitrogen and Helium is not trivial, the cost of the installation and manteinance is huge - Refilling the cryostat during the winter is a challenge Wet cryostats are not suitable for winter observations in DomeC What about mechanical coolers? 11
12 The BRAIN pathfinder We built a pathfinder experiment to answer this question 12
13 The BRAIN pathfinder 13
14 The BRAIN pathfinder 14
15 The BRAIN pathfinder 15
16 The BRAIN pathfinder This is the standard cryocooler configuration... 16
17 The BRAIN pathfinder...and this is the BRAIN cryocooler configuration Indoor (container) Outdoor 17
18 The BRAIN pathfinder The SRP052A external parts are thermally insulated and heated to >4oC by means of IR lamp. Cold temperature of the He flow would stop the operation of the cryocooler. Also, the rubber OR seals are rated down to 30oC only. 18
19 The BRAIN pathfinder Back-to-back horns and detector supports Horns and detectors are mounted on the window to reduce vibrations induced by the mechanical cooler Thermal link are made by flexable copper braids 19
20 The BRAIN pathfinder The 4He/3He fridge The baseline temperature of the 2nd stage of the PT is ~3K, and 3He condensation is not efficient We use a 2 stage 4He/3He fridge 4He stage reaches ~1K 3He stage is designed for 335mk 20
21 The BRAIN pathfinder Heat load analysis: PT 1st stage: Radiation ~1.4W (using superinsulation) Conduction (mechanical + wiring) ~0.8W 21
22 The BRAIN pathfinder Heat load analysis: PT 1st stage: Radiation ~1.4W (using superinsulation) Conduction (mechanical + wiring) ~0.8W PT 2st stage: Radiation ~0.1W (mainly from the window) Conduction (mechanical + wiring) ~1mW 22
23 The BRAIN pathfinder Heat load analysis: PT 1st stage: Radiation ~1.4W (using superinsulation) Conduction (mechanical + wiring) ~0.8W PT 2st stage: Radiation ~0.1W (mainly from the window) Conduction (mechanical + wiring) ~1mW Fridge: Radiation: negligible (dark test) Conduction (mechanical + wiring) ~15 W 23
24 The BRAIN pathfinder Heat load analysis: PT 1st stage: Radiation ~1.4W (using superinsulation) Conduction (mechanical + wiring) ~0.8W PT 2st stage: Radiation ~0.1W (mainly from the window) Conduction (mechanical + wiring) ~1mW Fridge: Radiation: negligible (dark test) Conduction (mechanical + wiring) ~15 W Expected temperatures: PT 1st stage: ~40K PT 2nd stage: ~3K Fridge: ~345mK 24
25 The BRAIN pathfinder in DomeC Lat: 75 06' S Lon: ' E Altitude 3230m osl Main air temperature C Typical monthly average air temperature in summer -30 C Typical monthly average air temperature in winter -60 C Mean wind speed 2.8 m/s 5.4 knots Mean air pressure 645 hpa Yearly precipitation range (snow) 2-10 cm BRAIN site 25
26 Results from 2006/2007 summer campaign We had a 40 days long campaign: 4 people involved: 2 for 2 weeks 2 for 40 days We spent 35 days in DomeC, including arrival of the material, packing, etc, etc. Results: 25 days of continuous operations, no failure 1st stage of the 29K 2nd stage of the 2.1K front 350mK, duty cycle ~ 90% Remote control from the main station available 26
27 Results from 2006/2007 summer campaign Test of readout system 27
28 Results from 2006/2007 summer campaign Qualification of the site through continuous sky-dip to measure the optical depth of the atmosphere: < 0.05, 95% C.L. 28
29 Towards a B-mode interferometer Schematic concept of the cryostat: 29
30 Towards a B-mode interferometer Schematic concept of the cryostat: - interferometer room ~ 20x20x20cm3 - the goal is 300mK, 11 He fridge - shields installed directly on the cryostat - the head of the PT is kept warm inside a box - 4 small windows on each side 30
31 Conclusions Cryogenics is a key part of all the bolometric experiments Wet cryostats are not suitable for operation in DomeC Mechanical coolers are preferable, but need some modifications We demonstrated the reliability of such a cryostat with the BRAIN pathfinder Remote operation is a huge advantage in a harsh environment 31
32 Conclusions Cryogenics is a key part of all the bolometric experiments Wet cryostats are not suitable for operation in DomeC Mechanical coolers are preferable, but need some modifications We demonstrated the reliability of such a cryostat with the BRAIN pathfinder Remote operation is a huge advantage in a harsh environment Thanks for your attention 32
Michel Piat for the BRAIN collaboration
Precise measurement of CMB polarisation from Dome-C: the BRAIN experiment Michel Piat for the BRAIN collaboration Laboratoire Astroparticule et Cosmologie Université Paris 7 Denis Diderot 1 Outline 1.
Cooling S. Masi Sapienza Rome
Cooling S. Masi Sapienza Rome Towards the European Coordination of the CMB programme Villa Finaly, Firenze, 6th -8th Septemeber, 2017 https://indico.in2p3.fr/event/14661/ Cooling for CMB experiments Ground-based
Exploring the primordial Universe with QUBIC
Exploring the primordial Universe with the Q U Bolometric Interferometer for Cosmology J.-Ch. Hamilton, APC, Paris, France (CNRS, IN2P3, Université Paris-Diderot) Expected difficulties in the B-Modes Quest
Available online at ScienceDirect. Physics Procedia 67 (2015 ) Superfluid helium heat pipe. P.
Available online at www.sciencedirect.com ScienceDirect Physics Procedia 67 (2015 ) 625 630 25th International Cryogenic Engineering Conference and the International Cryogenic Materials Conference in 2014,
INTRODUCTION Strained Silicon Monochromator Magnesium Housing Windows for Monochromator Shutter and Collimator Fission Detector HOPG Monochromator
Design for a Four-Blade Neutron Interferometer INTRODUCTION Strained Silicon Monochromator The neutron beam used for this interferometer is separated from the NIST reactor's main beam using a strained
Microscopy Cryostat System
OF AMERICA, INC. Microscopy Cryostat System RC102-CFM Microscopy Cryostat offers fast cooldown, high efficiency, lowest thermal drift, excellent temperature stability and ultra low vibration Optical cryostat
Vacuum techniques (down to 1 K)
Vacuum techniques (down to 1 K) For isolation (deep Knudsen regime) liquid helium dewar / inner vacuum jacket Leak testing at level 10-11 Pa m3/s (10-10 mbar l/s) liquid helium dewar & transfer syphon
HDice overview A.M. Sandorfi
Sandorfi g14 Readiness Mar30 11 HDice overview A.M. Sandorfi g14 goals HD target characteristics steps in bringing a polarized HD target to CLAS schedule AMS-Overview Sandorfi g14 Readiness Mar30 11 g14
Development of high-efficiency Stirling cryocoolers for high temperature superconducting motors
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Development of high-efficiency Stirling cryocoolers for high temperature superconducting motors To cite this article: K Nakano
Table of Contents. Chapter: Atmosphere. Section 1: Earth's Atmosphere. Section 2: Energy Transfer in the Atmosphere. Section 3: Air Movement
Table of Contents Chapter: Atmosphere Section 1: Earth's Atmosphere Section 2: Energy Transfer in the Atmosphere Section 3: Air Movement Table of Contents Chapter: Atmosphere Section 2: Energy Transfer
Lorenzo Moncelsi. SPIDER Probing The Dawn Of Time From Above The Clouds
SPIDER Probing The Dawn Of Time From Above The Clouds Planck 2013 B-modes BICEP2 2014 Thomson scattering within local quadrupole anisotropies generates linear polarization Scalar modes T, E Tensor modes
Global Energy Balance: Greenhouse Effect
Global Energy Balance: Greenhouse Effect Atmospheric Composition & Structure Physical Causes of Greenhouse Effects Chapter 3: 44 48. Atmospheric Composition Why does water vapor vary so much? Saturation
Superfluid helium and cryogenic noble gases as stopping media for ion catchers Purushothaman, Sivaji
University of Groningen Superfluid helium and cryogenic noble gases as stopping media for ion catchers Purushothaman, Sivaji IMPORTANT NOTE: You are advised to consult the publisher's version (publisher's
PRECISION CMB POLARIZATION FROM DOME-C: THE BRAIN EXPERIMENT
Dome C Astronomy and Astrophysics Meeting M. Giard, F. Casoli and F. Paletou (eds) EAS Publications Series, 14 (2005) 87 92 PRECISION CMB POLARIZATION FROM DOME-C: THE BRAIN EXPERIMENT S. Masi 1,P.deBernardis
Critical Exponents. From P. Chaikin and T Lubensky Principles of Condensed Matter Physics
Critical Exponents From P. Chaikin and T Lubensky Principles of Condensed Matter Physics Notice that convention allows for different exponents on either side of the transition, but often these are found
Precise measurement of CMB polarisation from Dome-C: the BRAIN and CLOVER experiments
Precise measurement of CMB polarisation from Dome-C: the BRAIN and CLOVER experiments M. Piat, C. Rosset To cite this version: M. Piat, C. Rosset. Precise measurement of CMB polarisation from Dome-C: the
FIRST HIGH-RESOLUTION ANALYSIS OF PHOSGENE 35 Cl 2. CO AND 35 Cl 37 ClCO FUNDAMENTALS IN THE CM -1 SPECTRAL REGION
FIRST HIGH-RESOLUTION ANALYSIS OF PHOSGENE 35 Cl 2 CO AND 35 Cl 37 ClCO FUNDAMENTALS IN THE 250-480 CM -1 SPECTRAL REGION F. Kwabia Tchana 1, M. Ndao 1, L. Manceron 2, A. Perrin 1, J. M. Flaud 1, W.J.
REFRIGERA TION OPTIONS FOR THE ADVANCED LIGHT SOURCE SUPERB END DIPOLE MAGNETS
.. LBNL-43572 SC-MAG-674 REFRIGERA TION OPTIONS FOR THE ADVANCED LIGHT SOURCE SUPERB END DIPOLE MAGNETS M. A. Green E. H. Hoyer R. D. Schlueter C. E. Taylor and J. Zbasnik E. O. Lawrence Berkeley National
System design of 60K Stirling-type co-axial pulse tube coolers for HTS RF filters
System design of 60K Stirling-type co-axial pulse tube coolers for HTS RF filters Y. L. Ju, K. Yuan, Y. K. Hou, W. Jing, J. T. Liang and Y. Zhou Cryogenic Laboratory, Technical Institute of Physics and
Weather. A. atmosphere is a layer of gases that wrap around the Earth like a blanket.
Weather I. The air around us A. atmosphere is a layer of gases that wrap around the Earth like a blanket. II. Weather Temperature Humidity Air pressure Wind 1. contains the air we breathe, protects us
Frozen Spin Targets. In a Nutshell. Version 2.0. Chris Keith
Frozen Spin Targets In a Nutshell Version 2.0 Chris Keith Dynamic Nuclear Polarization (the simple model) Use Low Temperature + High Field to polarize free electrons (aka paramagnetic centers) in the target
Vibration-Free Pulse Tube Cryocooler System for Gravitational Wave Detectors I
1 Vibration-Free Pulse Tube Cryocooler System for Gravitational Wave Detectors I - Vibration-Reduction Method and Measurement - T. Tomaru A, T. Suzuki A, T. Haruyama A, T. Shintomi A, N. Sato A, A. Yamamoto
Space Cryogenics at the Rutherford Appleton Laboratory
Space Cryogenics at the Rutherford Appleton Laboratory Tom Bradshaw Martin Crook Bryan Shaughnessy Cryogenic Cluster Day STFC, Rutherford Appleton Laboratory 22 nd September 2010 Introduction Rutherford
according to and water. High atmospheric pressure - Cold dry air is other air so it remains close to the earth, giving weather.
EARTH'S ATMOSPHERE Composition of the atmosphere - Earth's atmosphere consists of nitrogen ( %), oxygen ( %), small amounts of carbon dioxide, methane, argon, krypton, ozone, neon and other gases such
Vacuum Solutions for Ion Thruster Testing
Vacuum Solutions for Ion Thruster Testing Stefan Lausberg Application & Product Support VA 1.2 Mon 9:45 H25 DPG-Frühjahrstagung Regensburg 2016 Oerlikon Leybold Vacuum DPG-Frühjahrstagung Regensburg Stefan
LIGO workshop What Comes Next for LIGO May 7-8, 2015, Silver Spring, MD KAGRA KAGRA. Takaaki Kajita, ICRR, Univ. of Tokyo for the KAGRA collaboration
LIGO workshop What Comes Next for LIGO May 7-8, 2015, Silver Spring, MD KAGRA KAGRA Takaaki Kajita, ICRR, Univ. of Tokyo for the KAGRA collaboration Outline Introduction: Overview of KAGRA Status of the
Heat Transfer. Heat Transfer. Convection Heat transfer due to the actual motion of a fluid. Conduction Heat transfer by successive atomic collisions
Heat Transfer What are the different ways that heat can move from one place to another? Heat Transfer What are the different ways that heat can move from one place to another? Conduction Convection Radiation
2,000-gram mass of water compared to a 1,000-gram mass.
11.2 Heat To change the temperature, you usually need to add or subtract energy. For example, when it s cold outside, you turn up the heat in your house or apartment and the temperature goes up. You know
WEATHER. Review Note Cards
WEATHER Review Note Cards Thermometer Weather instrument that measures air temperature Units include F, C, and K ESRT 13 Sling Psychrometer Weather instrument that measures relative humidity and dewpoint
Flight Acceptance Testing of the Two JPL Planck Sorption Coolers
Flight Acceptance Testing of the Two JPL Planck Sorption Coolers D. Pearson 1, B. Zhang 1, M. Prina 1, C. Paine 1, G. Morgante 2, P. Bhandari 1, R. Bowman 1, and A. Nash 1 1 Jet Propulsion Laboratory Pasadena,
Name Class Date. 3. In what part of the water cycle do clouds form? a. precipitation b. evaporation c. condensation d. runoff
Skills Worksheet Directed Reading B Section: Water in the Air 1. What do we call the condition of the atmosphere at a certain time and place? a. the water cycle b. weather c. climate d. precipitation THE
Calibration and Temperature Retrieval of Improved Ground-based Atmospheric Microwave Sounder
PIERS ONLINE, VOL. 6, NO. 1, 2010 6 Calibration and Temperature Retrieval of Improved Ground-based Atmospheric Microwave Sounder Jie Ying He 1, 2, Yu Zhang 1, 2, and Sheng Wei Zhang 1 1 Center for Space
Low Vibration Cryogenic Equipment
PAGE 12 PAGE 13 ATTOCUBE S CRYOSTATS ATTODRY attodry1000....................... 14 cryogen-free cryostats with/without s attodry700.........................18 cryogen-free table-top cryostats with optical
MOLECULAR SURFACE PUMPING: CRYOPUMPING
51 MOLECULAR SURFACE PUMPING: CRYOPUMPING C. Benvenuti CERN, Geneva, Switzerland Abstract Weak van der Waals attractive forces may provide molecular gas pumping on surfaces cooled at sufficiently low temperatures.
Progress in the Development of the IXO 50 mk Sorption-ADR stage
Progress in the Development of the IXO 50 mk Sorption-ADR stage J.M. Duval 1, N. Luchier 1, L. Duband 1, T. Tirolien 2 1 CEA / INAC / Service des Basses Températures, Grenoble, France 2 ESA / ESTEC, Noordjwick,
Thermal / Solar. When air is warmed it... Rises. Solar Energy. Evaporation. Condensation Forms Clouds
Thermal / Solar Light from the Sun is transformed into what type of energy when it hits Earth's surface? Rises When air is warmed it... Solar Energy Water moves through the water cycle using what type
Conduction is the transfer of heat by the direct contact of particles of matter.
Matter and Energy Chapter 9 energy flows from a material at a higher temperature to a material at a lower temperature. This process is called heat transfer. How is heat transferred from material to material,
Receiver Cryogenic System
ALMA Project Book, Chapter 6 Receiver Cryogenic System Revision History 2001-Jan.-29: First ALMA version A. Orlowska, M. Harman, B. Ellison Last changed 2001-Jan.-29 Contents: 6.1 Introduction 3 6.2 Design
A) usually less B) dark colored and rough D) light colored with a smooth surface A) transparency of the atmosphere D) rough, black surface
1. Base your answer to the following question on the diagram below which shows two identical houses, A and B, in a city in North Carolina. One house was built on the east side of a factory, and the other
A Liquid Nitrogen Immersion Cryostat. for Optical Measurements
10 Liquid Nitrogen Immersion Cryostat 2 A Liquid Nitrogen Immersion Cryostat for Optical Measurements Reprinted with permission from: Andrews, S.S.; Boxer, S.G. Rev. Sci. Inst. 2000, 71, 3567. Copyright
The Sun and Water Cycle
Have you ever jumped in a puddle or played in the rain? If so, you know you can get very wet. What you may not know is that a dinosaur could have walked through that same water millions of years ago. The
M1. (a) range of speeds 1. moving in different directions accept random motion 1. internal energy 1. density = mass / volume 1. (d) / 0.
M. (a) range of speeds moving in different directions accept random motion (b) internal energy (c) density = mass / volume (d) 0.00254 / 0.04 0.8 accept 0.8 with no working shown for the 2 calculation
Atmosphere, Weather & Climate Review for Unit Assessment (Can be taken on Study Island Due Mon., 11/26/12)
Name Class Period Atmosphere, Weather & Climate Review for Unit Assessment (Can be taken on Study Island Due Mon., 11/26/12) 1. When hot and cold air meet, the hot air rises to the top. Which process causes
Puebla, C.P , Mexico; ABSTRACT 1. INTRODUCTION 2. CRYOSTAT INTEGRATION
Integration and characterization of the cryogenic system of MEGARA Ferrusca R.,D.* a, Cisneros G., M. E. a, Velázquez, M. a, Zenteno H., J. A. a, Gil de Paz, A. b, Gallego, J. b, Carrasco, E. a, Sánchez-Moreno
On the Emissivity of Silver Coated Panels, Effect of Long Term Stability and Effect of Coating Thickness
JET P(98)57 P A eladarakis W Obert On the Emissivity of Silver Coated Panels, Effect of Long Term Stability and Effect of Coating Thickness This document is intended for publication in the open literature.
arxiv: v2 [astro-ph.im] 23 Jul 2018
![arxiv: v2 [astro-ph.im] 23 Jul 2018](/thumbs/94/119524066.jpg "arxiv: v2 [astro-ph.im] 23 Jul 2018")
Journal of Low Temperature Physics manuscript No. (will be inserted by the editor) A Continuous 100-mK Helium-Light Cooling System for MUSCAT on the LMT T. L. R. Brien E. Castillo-Dominguez S. Chase S.
CHAPTER V. Thermal properties of materials at low temperatures
CHAPTER V Thermal properties of materials at low temperatures 1. Introduction The mechanical properties of materials were discussed in Chapter IV. In this chapter we shall discuss the thermal properties
DEPOSITION OF THIN TiO 2 FILMS BY DC MAGNETRON SPUTTERING METHOD
Chapter 4 DEPOSITION OF THIN TiO 2 FILMS BY DC MAGNETRON SPUTTERING METHOD 4.1 INTRODUCTION Sputter deposition process is another old technique being used in modern semiconductor industries. Sputtering
DOME C AS A SETTING FOR THE PERMANENT ALL SKY SURVEY (PASS)
Title : will be set by the publisher Editors : will be set by the publisher EAS Publications Series, Vol.?, 2005 DOME C AS A SETTING FOR THE PERMANENT ALL SKY SURVEY (PASS) H.J. Deeg, J.A. Belmonte, R.
KS3 Science. Heat and Energy
KS3 Science Heat and Energy Heat and Energy Key Words Write a definition for each of the key words listed below Key words States of matter Melt Freeze Evaporate Condense Heat Conduction Convention Radiation
Speed of Light in Air
Speed of Light in Air Electromagnetic waves represent energy in the form of oscillating electric and magnetic fields which propagate through vacuum with a speed c = 2.9979246x10 8 m/s. Electromagnetic
Science Chapter 13,14,15
Science 1206 Chapter 13,14,15 1 Weather dynamics is the study of how the motion of water and air causes weather patterns. Energy from the Sun drives the motion of clouds, air, and water. Earth s tilt at
Answer: The relation between kelvin scale and Celsius scale is TK =TC => TC=TK
Question The triple points of neon and carbon dioxide are 24.57 K and 216.55 K respectively. Express these temperatures on the Celsius and Fahrenheit scales. Answer: The relation between kelvin scale and
Atmospheric phase correction for ALMA with water-vapour radiometers
Atmospheric phase correction for ALMA with water-vapour radiometers B. Nikolic Cavendish Laboratory, University of Cambridge January 29 NA URSI, Boulder, CO B. Nikolic (University of Cambridge) WVR phase
The Kunlun Infrared Sky Survey (KISS) with AST3-NIR Camera. Jessica Zheng
The Kunlun Infrared Sky Survey (KISS) with AST3-NIR Camera Jessica Zheng 1 KISS First comprehensive exploration of time varying Universe in the Infrared 2MASS, time sensitive SkyMapper, infrared Science
The international scenario Balloons, LiteBIRD, PIXIE, Millimetron
The international scenario Balloons, LiteBIRD, PIXIE, Millimetron Francesco Piacentini Sapienza Università di Roma, Dipartimento di Fisica on behalf of the Italian CMB community Overview International
Thermal analysis of superconducting undulator cryomodules
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Thermal analysis of superconducting undulator cryomodules To cite this article: Y Shiroyanagi et al 2015 IOP Conf. Ser.: Mater.
INSTITUTE FOR TECHNICAL PHYSICS (ITEP) CRYOGENICS
Design and Construction of the Cryogenic Cooling System for the Rotating Magnetic Validator of the 10 MW SUPRAPOWER Offshore Superconducting Wind Turbine Jiuce Sun, Holger Neumann, Santiago Sanz, Gustavo
the first prototype for a scintillating bolometer double beta decay experiment.
the first prototype for a scintillating bolometer double beta decay experiment. On behalf of CUPID-INFN collaboration Cuore Upgrade with Particle IDentification In the middle of 2015 INFN decided to support
Prentice Hall EARTH SCIENCE
Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 21 Climate 21.1 Factors That Affect Climate Factors That Affect Climate Latitude As latitude increases, the intensity of solar energy decreases. The
DEVICE FOR MEASUREMENT OF THERMAL EMISSIVITY AT CRYOGENIC TEMPERATURES
DEVICE FOR MEASUREMENT OF THERMAL EMISSIVITY AT CRYOGENIC TEMPERATURES Tomas Kralik, Pavel Hanzelka, Vera Musilova, Ales Srnka Institute of Scientific Instruments ASCR, Kralovopolska 47, Brno, CZ 62 64,
5) The amount of heat needed to raise the temperature of 1 gram of a substance by 1 C is called: Page Ref: 69
Homework #2 Due 9/19/14 1) If the maximum temperature for a particular day is 26 C and the minimum temperature is 14 C, what would the daily mean temperature be? (Page Ref: 66) 2) How is the annual mean
cryogenic calorimeter with particle identification for double beta decay search
cryogenic calorimeter with particle identification for double beta decay search Cuore Upgrade with Particle IDentification In the middle of 2015 INFN decided to support CUPID activity to develop: CUPID-0:
LHC HTS CURRENT LEADS
CERN CH-1211 Geneva 23 Switzerland the Large Hadron Collider project LHC Project Document No. CERN Div./Group or Supplier/Contractor Document No. AT/MEL EDMS Document No. 350602 Date: 2003-07-16 Functional
CLIO. Presenter : : Shinji Miyoki. S.Telada (AIST) A.Yamamoto, T.Shintomi (KEK) and CLIO collaborators
CLIO Presenter : : Shinji Miyoki T.Uchiyama, K.Yamamoto, T.Akutsu M.Ohashi, K.Kuroda,,,(ICRR) S.Telada (AIST) T.Tomaru, T.Suzuki, T.Haruyama. N.Sato, A.Yamamoto, T.Shintomi (KEK) and CLIO collaborators
A TES Bolometer for THz FT-Spectroscopy
A TES Bolometer for THz FT-Spectroscopy M. Kehrt, J. Beyer, C. Monte, J. Hollandt Physikalisch-Technische Bundesanstalt Abbestraße 2-12, Berlin, Germany E-Mail: Mathias.Kehrt@PTB.de Abstract - We recently
Baffle Telescope Tube. Bus Module Bus MLI
The Institute of Space and Astronautical Science Report SP No.14, December 2000 HII/L2 Mission Cryogenic System By Masayuki Hirabayashi Λ, Makoto Kyoya Λ, Masahide Murakami y ; and Toshio Matsumoto z (November
arxiv: v1 [physics.ins-det] 6 Nov 2007
![arxiv: v1 [physics.ins-det] 6 Nov 2007](/thumbs/82/85660838.jpg "arxiv: v1 [physics.ins-det] 6 Nov 2007")
arxiv:711.839v1 [physics.ins-det] 6 Nov 27 Conduction Effect of Thermal Radiation in a Metal Shield Pipe in a Cryostat for a Cryogenic Interferometric Gravitational Wave Detector Takayuki Tomaru A, Masao
LASER INTERFEROMETER GRAVITATIONAL WAVE OBSERVATORY - LIGO - CALIFORNIA INSTITUTE OF TECHNOLOGY MASSACHUSETTS INSTITUTE OF TECHNOLOGY
LASER INTERFEROMETER GRAVITATIONAL WAVE OBSERVATORY - LIGO - CALIFORNIA INSTITUTE OF TECHNOLOGY MASSACHUSETTS INSTITUTE OF TECHNOLOGY Document Type LIGO-T960148-01- D Sep / 9 / 96 Maximum Current of the
Factors That Affect Climate
Factors That Affect Climate Factors That Affect Climate Latitude As latitude (horizontal lines) increases, the intensity of solar energy decreases. The tropical zone is between the tropic of Cancer and
WATER IN THE ATMOSPHERE
WATER IN THE ATMOSPHERE I. Humidity A. Defined as water vapor or moisture in the air (from evaporation and condensation). B. The atmosphere gains moisture from the evaporation of water from oceans, lakes,
Design of the Mainz Active Polarized Proton Target
Design of the Mainz Active Polarized Proton Target a, P. Achenbach a, E. Downie b, A. Thomas a for the A2 Collaboration a Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz, Germany b Physics
Technical Note 103. Response Enhancement for the Loral CCDs. using Ultra-Violet Flooding. A. P. Oates (RGO)
echnical Note 103 Response Enhancement for the oral CCDs using Ultra-Violet Flooding. A. P. Oates (RGO) July 1996 1 Response Enhancement for the oral CCDs using Ultra-Violet Flooding. 1. Introduction.
Fall 2014 Nobby Kobayashi
University of California at Santa Cruz Jack Baskin School of Engineering Electrical Engineering Department EE-145L: Properties of Materials Laboratory Lab 5: Temperature Dependence of Semiconductor Conductivity
Physics Nov Cooling by Expansion
Physics 301 19-Nov-2004 25-1 Cooling by Expansion Now we re going to change the subject and consider the techniques used to get really cold temperatures. Of course, the best way to learn about these techniques
The inputs and outputs of energy within the earth-atmosphere system that determines the net energy available for surface processes is the Energy
Energy Balance The inputs and outputs of energy within the earth-atmosphere system that determines the net energy available for surface processes is the Energy Balance Electromagnetic Radiation Electromagnetic
Heat and Temperature
Chapter 4 Heat Heat and Temperature Heat is a form of energy Heat is the energy of random motion of molecules constituting the body. It flows from a hot body to a cold body. Unit of heat is joule (J) and
Prentice Hall EARTH SCIENCE
Prentice Hall EARTH SCIENCE Tarbuck Lutgens Chapter 21 Climate 21.1 Factors That Affect Climate Factors That Affect Climate Latitude As latitude increases, the intensity of solar energy decreases. The
Mr. P s Science Test!
WEATHER- 2017 Mr. P s Science Test! # Name Date 1. Draw and label a weather station model. (10 pts) 2. The is the layer of the atmosphere with our weather. 3. Meteorologists classify clouds in about different
Weather Final Review Page 1
Weather Final Review Name 1. Which change would cause a decrease in the amount of insolation absorbed at Earths surface? A) a decrease in cloud cover B) a decrease in atmospheric transparency C) an increase
THE CERN CRYOGENIC TEST FACILITY FOR THE ATLAS BARREL TOROID MAGNETS
EUROPEAN ORGANIZATION FOR NUCLEAR RESEARCH European Laboratory for Particle Physics Large Hadron Collider Project LHC Project Report 365 THE CERN CRYOGENIC TEST FACILITY FOR THE ATLAS BARREL TOROID MAGNETS
Quantum Technology: Supplying the Picks and Shovels
Quantum Technology: Supplying the Picks and Shovels Dr John Burgoyne Quantum Control Engineering: Mathematical Solutions for Industry Open for Business Event 7 th August 2014, 12.30-17.00, Isaac Newton
Retrieval of tropospheric and middle atmospheric water vapour profiles from ground based microwave radiometry
Retrieval of tropospheric and middle atmospheric water vapour profiles from ground based microwave radiometry René Bleisch Institute of Applied Physics 26..212 1 / 45 Outline 1 Introduction Measuring water
1. GLACIER METEOROLOGY - ENERGY BALANCE
Summer School in Glaciology McCarthy, Alaska, 5-15 June 2018 Regine Hock Geophysical Institute, University of Alaska, Fairbanks 1. GLACIER METEOROLOGY - ENERGY BALANCE Ice and snow melt at 0 C, but this
Latest Status of High Temperature Superconducting Cable Projects
Latest Status of High Temperature Superconducting Cable Projects Y.Ashibe, H.Yumura, M.Watanabe, H.Takigawa, H.Ito, M.Ohya, T.Masuda and M.Hirose Sumitomo Electric Industries, Ltd.Osaka,554-0024 Japan
CRYOGENICS 2. Makariy A. Tanatar
CRYOGENICS 2 Going below 1 K Welcome to the quantum world! 590B Makariy A. Tanatar History He3 systems Properties of He-3 and He-4 Dilution refrigerator Demagnetization refrigeration Short history of temperatures
CRYOGENIC CONDUCTION COOLING TEST OF REMOVABLE PANEL MOCK-UP FOR ITER CRYOSTAT THERMAL SHIELD
CRYOGENIC CONDUCTION COOLING TEST OF REMOVABLE PANEL MOCK-UP FOR ITER CRYOSTAT THERMAL SHIELD K. Nam, a D. K. Kang, a W. Chung, a C. H. Noh, a J. Yu, b N. I. Her, b C. Hamlyn-Harris, b Y. Utin, b and K.
Weather and Energy Review
Weather and Energy Review Name 1. Base your answer to the following question on the diagram below, which represents the greenhouse effect in which heat energy is trapped in Earth's atmosphere Which type
Course Outline. About Me. Today s Outline CLIMATE SCIENCE A SHORT COURSE AT THE ROYAL INSTITUTION. 1. Current climate. 2.
Course Outline 1. Current climate 2. Changing climate 3. Future climate change 4. Consequences COURSE CLIMATE SCIENCE A SHORT COURSE AT THE ROYAL INSTITUTION DATE 4 JUNE 2014 LEADER 5. Human impacts 6.
Yeon Suk Choi \ Steven W. Van Sciver \ and Ho-Myung Chang u
NATURAL CONVECTION OF SUBCOOLED LIQUID NITROGEN IN A VERTICAL CAVITY Yeon Suk Choi \ Steven W. Van Sciver \ and Ho-Myung Chang u 1 National High Magnetic Field Laboratory, Florida State University, Tallahassee,
Position calibration of cryogenic dark matter detectors
Abstract Position calibration of cryogenic dark matter detectors Aliya Merali University of Florida REU Participant, Summer 2010 Advisor: Dr. Tarek Saab Preparations for a position calibration of cryogenic
Thermal design of the CFRP support struts for the spatial framework of the Herschel Space Observatory
Thermal design of the CFRP support struts for the spatial framework of the Herschel Space Observatory McDonald P.C.* Jaramillo E.** and B. Baudouy*** *Institute of Cryogenics, School of Engineering Sciences,
Put sufficient ice cubes into water (1 M) and wait for equilibrium (both exist) (1 M)
NAME : F.5 ( ) Marks: /70 FORM FOUR PHYSICS REVISION TEST on HEAT Allowed: 70 minutes This paper consists of two sections. Section A (50 marks) consists of the structure-type questions, and Section B (20
Climate versus Weather
Climate versus Weather What is climate? Climate is the average weather usually taken over a 30-year time period for a particular region and time period. Climate is not the same as weather, but rather,
Coolant. Circuits Chip
1) A square isothermal chip is of width w=5 mm on a side and is mounted in a subtrate such that its side and back surfaces are well insulated, while the front surface is exposed to the flow of a coolant
Available online at ScienceDirect. Physics Procedia 67 (2015 ) Performance test of a G-M cooler in magnetic field
Available online at www.sciencedirect.com ScienceDirect Physics Procedia 67 (2015 ) 440 444 25th International Cryogenic Engineering Conference and the International Cryogenic Materials Conference in 2014,
AST 101 Intro to Astronomy: Stars & Galaxies
AST 101 Intro to Astronomy: Stars & Galaxies Telescopes Mauna Kea Observatories, Big Island, HI Imaging with our Eyes pupil allows light to enter the eye lens focuses light to create an image retina detects
MoBiKID Kinetic Inductance Detectors for up-coming B-mode satellite experiments
MoBiKID Kinetic Inductance Detectors for up-coming B-mode satellite experiments TIPP 17 - BEIJING INFN, Sezione di Roma Dawn of the universe: where are we? Looking into the CMB for a proof of the Inflation...
Report Liquid Hydrogen Target for the COMPASS Experiment
CERN-ACC-2014-0290 Johan.Bremer@cern.ch Report Liquid Hydrogen Target for the COMPASS Experiment J. Bremer 1, N. Doshita 2, L. Dufay-Chanat 1, R. Geyer 3, G.K. Mallot 1, O. Pirotte 1, and B. Vullierme
Design strategy for Low e windows with effective insulation
Design strategy for Low e windows with effective insulation Michael P.C. Watts, Impattern Solutions, www.impattern.com Keywords; insulating windows. low emission glass, ABSTRACT Optimal window glass assemblies