High Spatial Resolution in thermal Neutron Detection: from CASCADE to BASTARD. Markus Köhli. DPG Frühjahrstagung Münster

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1 High Spatial Resolution in thermal Neutron Detection: from CASCADE to BASTARD DPG Frühjahrstagung Münster Physikalisches Institut (LCTPC) Rheinische Friedrich-Wilhelms-Universität Bonn Markus Köhli M. Klein, U. Schmidt (Uni Heidelberg) T. Wagner, F. Schmidt, J. Kaminski, K. Desch (Uni Bonn)

2 Neutron Capture 1 Neutron 30 mev Nuclear Absorption 5

3 The Helium-3 Crisis 2 AAAS, Overview of Helium-3 Supply and Demand 5

4 The Helium-3 Crisis 2 9/11 [1] AAAS, Overview of Helium-3 Supply and Demand [2] 5 [1] [2]

5 The European Spallation Source 3 ESS TDR 2013 Lund, Sweden Linear Accelerator 2 GeV 3 ms Pulse 62.5 ma

6 ESS Instrumentation 3 ESS TDR 2013

7 ESS Instrumentation 3 ESS TDR

8 The Detector Heidelberg University

9 The CASCADE Detector 4 CASCADE detector without housing

10 The CASCADE Detector 4 CASCADE detector without housing Active Detection Volume 6 layers of Boron-10 Readout 128x128 crossed 1.56 mm Electronics 5x CIPix FPGA 10 MHz DAQ Firmware based event reconstruction

11 The CASCADE Concept 5 Casing Thin (Boron) Layer Readout

12 The CASCADE Concept 5 Casing Thin (Boron) Layer charge transparent substrate Readout

13 The CASCADE Concept 5 GEM (Gas Electron Multiplier foil)

14 The CASCADE Concept 5 GEM (Gas Electron Multiplier foil)

15 The CASCADE Concept 5 c c c c

16 The CASCADE Concept 5

17 Spatial Resolution 8 Image of a cold neutron beam (after guide) 2.5 mm Spatial resolution: 2.4 mm FWHM Log (Intensity) Cadmium FRM II

18 Spin Echo

19 Spin Echo - MIEZE 10

20 Spin Echo - MIEZE 10 Sample

21 _count_ Spin Echo Measurements Polarisation 69.6 % space RESEDA, FRMII: spectrometer arms % FWHM _B 3_

22 _count_ Spin Echo Measurements Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

23 _count_ Spin Echo Measurements khz x16 time Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

24 _count_ Spin Echo Measurements khz x16 time Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

25 _count_ Spin Echo Measurements khz x16 time Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

26 _count_ Spin Echo Measurements khz x16 time Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

27 Spin Echo Measurements khz x16 time Phase View

28 Spin Echo Measurements khz x16 time

29 _count_ Spin Echo Measurements Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

30 _count_ Spin Echo Measurements Polarisation 69.6 % space Graphite Sample Typical Spin Echo group _B 3_

31 BASTARD & BODELAIRE

32 To New Shores 14 GEM CASCADE Uni Heidelberg Technology available in 2000 CiPix Multichannel ASIC

33 To New Shores 14 CASCADE Uni Heidelberg Technology available in 2000 GEM New Project Uni Bonn Technology available in 2017 TPC CiPix Multichannel ASIC TimePix VMM ASIC

34 To New Shores 15 BODELAIRE High Resolution BASTARD High Rate 5

35 The BASTARD System 15 Boron Drift Field Gas Gain Strips Kapton 5

36 The BASTARD System 15 Boron Drift Field Gas Gain Strips Kapton 5

37 The BASTARD System 15 Boron Drift Field Gas Gain Strips Kapton nxyter Prototype: M. Liebig Uni HD

38 The BASTARD System 16 Pitch :280 μm 10 cm x 10 cm 5

39 The BASTARD System 16 VMM1 2011/12 VMM2 2013/14 4 MHz/ch 10bit ADC self triggered 400 e- noise 1 ns time resolution [1] [2] 5 [1] G. Iakovidis, RD51 MiniWeek CERN, Feb [2] H. Muller, RD51 SRS Status December 2016, CERN

40 Summary & Outlook Markus Köhli Physikalisches Institut (LCTPC) Rheinische Friedrich-Wilhelms-Universität Bonn

41 Summary & Outlook Markus Köhli Physikalisches Institut (LCTPC) What can 10 Boron based detectors offer? Rheinische Friedrich-Wilhelms-Universität Bonn

42 Summary & Outlook Markus Köhli Physikalisches Institut (LCTPC) What can 10 Boron based detectors offer? high rate, spatially and time resolved detectors (for Imaging/Spin Echo applications) Rheinische Friedrich-Wilhelms-Universität Bonn

43 Summary & Outlook Markus Köhli Physikalisches Institut (LCTPC) What can 10 Boron based detectors offer? high rate, spatially and time resolved detectors (for Imaging/Spin Echo applications) Rheinische Friedrich-Wilhelms-Universität Bonn BASTARD (high rate, good resolution)

44 Summary & Outlook Markus Köhli Physikalisches Institut (LCTPC) What can 10 Boron based detectors offer? high rate, spatially and time resolved detectors (for Imaging/Spin Echo applications) Rheinische Friedrich-Wilhelms-Universität Bonn BASTARD (high rate, good resolution) BODELAIRE (high resolution)

45 Summary & Outlook Markus Köhli Physikalisches Institut (LCTPC) What can 10 Boron based detectors offer? high rate, spatially and time resolved detectors (for Imaging/Spin Echo applications) Rheinische Friedrich-Wilhelms-Universität Bonn BASTARD (high rate, good resolution) BODELAIRE (high resolution) to be continued T. Wagner & F. Schmidt

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