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MPGD Applications and Development in JAPAN

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MPGD Applications and Development in JAPAN Atsuhiko Ochi Kobe University 5th MPGD Conference at Philadelphia, 24/05/2017 USA 5th MPGD conf. Europe at Philadelphia MSGC (ILL, A. Oed) MicroMEGAS (CEA Saclay, Y. Giomataris) RD28 GEM (CERN, F. Sauli) RD51 1st MPGD conf. at Creta 2007 1993 2005 2015 2017 2000 2011 2009 1997 1996 1988 1992 2013 2nd MPGD conf. KEK DTP at Kobe Japan m-PIC (A. Ochi, T. Tanimori) Capillary plate (Yamagata U., H. Sakurai) 2D-MSGC (Tokyo Inst. Tech., T. Tanimori) A.Ochi 5th MPGD Conference 2017/5/24 2 Structure studies Resistive electrodes GEM (Gas electron multiplier) Organic material @Many institutes … KEK, RIKEN, JAEA, U. KEK Tokyo, Kyoto U., Saga U., TIT, Kinki U., TUAT Sputtering carbon/metal …. Kobe U. THGEM, Capillary plate, Carbon loaded Epoxy Yamagata U., TMU, U.Tokyo, AIST Kobe U., U. Tokyo MicroMEGAS Saga U., Kobe U., U. Tokyo μ-PIC (Micro Pixel Chamber) Applications Kyoto U., Kobe U., ICRR, KEK, J-PARC Particle physics (Acc./ Non Acc.) Kobe U. KEK, Kinki U. Saga U. Material studies (Substrate (conventional, Neutron imaging polyimide)) Kyoto U., KEK LCP (Liquid crystal polymer) Nuclear physics KEK, RIKEN, U.Tokyo, (SiEnergy co.) TIT, U.Tokyo., JAEA, Tsukuba U., RIKEN Glass Astrophysics U.Tokyo, Yamagata U. AIST Kyoto U., RIKEN PTFE, Ceramic Gas Photomultiplier Tokyo IRI, RIKEN Yamagata U, TMU, ICRR X/gamma ray imaging Kyoto U., KEK, AIST Medical imaging Kyoto U. A.Ochi 5th MPGD Conference 2017/5/24 3 I will introduce mainly recent material studies and applications of MPGD in JAPAN It is not all activities, and picked up by my sense Also, studies those have been (will be) presented in this conference are omitted. A.Ochi 5th MPGD Conference 2017/5/24 4 MPGD Substrate Not only polyimide, but also LCP, Glass, Ceramic… Even in polyimide, Low BG material is studied Gas study Special gas for negative ion drifts Resistive material DLC sputtering with large (>1m2) area A.Ochi 5th MPGD Conference 2017/5/24 5 Manufactured by K. Komiya et al., Tokyo IRI Hirai Seimitsu Kogyo Co., Ltd. (Osaka, Japan) LTCC-GEM※LTCC : Low Temperature Co-fired Ceramics Au paste (4 μm) 200 μm 100 μm LTCC (100 μm) Au paste (4 μm) Enlarged view Cross-section view Easy process !! Effective gain curve Discharge rate Source :55Fe Gas :Ar/CO2(7/ 3) Not broken down Broken down Ceramic-GEM：Max. gain ≧ 20,000 Ceramic-GEM is not broken down !! 2017 All rights reserved. K. Miuchi, Kobe U. Recent NEWAGE①：Low α μ-PIC development Largest background: alpha-rays from μ-PIC surface (Cand C’ in the figure ) Low alpha-emitting (<1/100) μ-PIC, made first light confirmed Replace the underground my-PIC: this summer. 30c m 30c m 30×30cm2 low-α μ-PIC (FY 2016) 2017/5/24 A.Ochi 5th MPGD Conference K. Miuchi, Kobe U. Recent NEWAGE②: Negative-ion TPC (SF6) Potential for absolute z measurement with “minority peaks” (first realized by DRIFT group) SF6 study for GEM+μPIC system (reported in MPGD2015) Wide dynamic-range ASIC development ⇐ NEW Tracking with MPGDs ⇐ NEW 8 2017/5/24 A.Ochi 5th MPGD Conference A.Ochi 5th MPGD Conference 2017/5/24 9 F. Tokanai et al., Gaseous PMT with MPGD Yamagata U., HAMAMATSU, TMU QE in vacuum 20% QE in the gas 12% After evacuation QE recovered to 20%. 2017/5/24 A.Ochi 5th MPGD Conference 10 F. Tokanai et al., Optical Imaging CP Gas Detector Yamagata U., HAMAMATSU, TMU It is possible to provide pixelized imaging capability with a high position resolution. F. Tokanai et al. NIM A 567 376-380 2006 F. Tokanai et al. accepted IEEE TNS 2007 Ar(90%)+CF４(10%) at 1 atm. Micro-foucs X-ray Generator •Anode Voltage: 15 kV •Current : 15 mA Excellent imaging capability and high signal to noise ratio are 2017/5/24 demonstratedA.Ochi 5th MPGD Conference for these X-ray images. 11 F. Tokanai et al., Yamagata U., HAMAMATSU, TMU Gas Scintillation Imager for Neutron (n-GSI) Neutron source: Kyoto University Accelerator-driven Neutron Source (KUANS) thermal neutron flux: 450n/cm2/s at detector “Sealed” Tube 2017/5/24 A.Ochi 5th MPGD Conference 12 J. Parker et al., CROSS-Tokai µPIC-based Neutron Imaging Resonance absorption Detector (µNID) Neutron detection neutron 3He using 3He Bragg-edge, Magnetic imaging - Track length 5 mm in gas E 9.0 cm 9.0 Energy-dependent transmission spectra with pulsed neutron beam PCB µPIC (400µm) ◦ Utilize energy measurement by time-of- 3-dimensional tracking of decay flight method pattern with energy via time-over- ◦ Used to determine macroscopic threshold (TOT) distribution of microscopic quantities Spatial resolution: < 0.2 mm Requires detector with good time Time resolution: 0.25 µs and spatial resolution, high count rate, and good background Count rate capacity: up to 8 Mcps rejection Effective gamma sensitivity: < 10-12 A.Ochi 5th MPGD Conference 2017/5/24 13 J. Parker et al., CROSS-Tokai Standard µNID Neutron Implementation of new data 8 cm radiograph of encoders with GbE data transfer Gd test pattern showing better New gas mixture for improved than 0.2 mm count rate and spatial resolution spatial resolution → Increased rate capacity from 0.6 Mcps (100Mbps Ethernet) to 8 Mcps (GbE and new gas) Neutron rate with GbE encoders Bin size: 40 x 40 µm2 10 ) New µNID with boron converter 8 New CF4- based gas Al drift cathode (t=1mm) Mcps 6 ~5 mm 10B coating (t=1.2µm) rate ( rate 4 Previous Ar- µPIC Count Count 2 based gas • Measure alpha instead of proton-triton → reduced 0 event size for 3 times 0 1000 2000 3000 4000 increased rate capacity Slit area (mm2) • Recently tested at J-PARC A.Ochi 5th MPGD Conference 2017/5/24 14 J. Parker et al., CROSS-Tokai Counts/pulse/25 ms First MEMS0.02 0.04 test0.06 at J0.08 -PARC 0.12 0.1 New µPIC detection elements 0 0 MEMS µPIC with 215µm pitch 5 Neutron TOF Neutron TOF (MEMS uPIC test) for two times better spatial 10 spectrum resolution 15 from 215µm 20 section 3-axis µPIC for improved event separation at high rate 25 30 Time (ms) 35 280µm pitch 40 (192×192 strips) • Signal confirmed on 215µm section MEMS µPIC test board • Poor gain stability observed 215µm (dependent on neutron intensity) pitch (64×64 strips) First 3-axis test at J-PARC • Signal observed on third axis but signal strength was too low to be used T. Taniguchi et al., KyotoA.Ochi U. 5th MPGD Conference 2017/5/24 15 PS-TEPC (μ-PIC based detector) was launched at Dec.9, 2016 to ISS (International Space Station) A.Ochi 5th MPGD Conference 2017/5/24 16 Y. Kishimoto, KEK Concept and Design of PS-TEPC Comparison of typical dose rate Drift plane In Space : 0.1 ～ 1 mSv/day (without in SPE) Shaping frames μ-PIC circuit board On the ground : 2 ～ 3 mSv/year (from natural radiation) Bleeder circuit ※In SPE (Solar Particle Emission) : >100 mSv/day Contributions of radiations to dose in space In Space vehicles: charged particle (80%), neutron (20%)*1 On lunar surface: charged particle (93%), neutron (7%)*2 *1: Measured (STS-89), *2:Calculated (Spa. Rad 2006) Signal outputs HV inputs H [Sv] = Quality factor(LET) x Absorbed dose [Gy] LET = Energy deposition / Path length Gas path We need to measure LET: deposit energy and track length of radiation simultaneously. μ-PIC Position Sensitive Tissue-Equivalent Proportional Chamber(PS-TEPC) as a small Detection volume 3 time projection chamber using μ-PIC 2.6×2.6×5.0cm μ-PIC circuit board KEK, JAXA, Kobe Univ., Keio Univ., Kyoto Univ., NIRS A.Ochi 5th MPGD Conference 2017/5/24 17 Y. Kishimoto, KEK Energy deposition Track image Am-241 source LET α-particles which stop completely in detection volume Track length LET can be obtained by dividing energy by track length 3D tracks can be reconstructed by the event A.Ochi 5th MPGD Conference 2017/5/24 18 Y. Kishimoto, KEK Tests of operation in space environment （Oscillation, Discharge） Demonstration of performance for cosmic rays （Dynamic range, Flux, （Flare response）) Measurement of dose rate actually （comparison with other dosimeters（PADLES, TEPC）） Duration of experiments：3 months（Full success criteria） PS-TEPC installed in the Japanese Experiment Module(JEM) Detector Detector unit #2 unit #1 ※ Two detector units are installed for redundancy Control unit PADLES (passive dosimeter) (DAQ) ©2016 JAXA Date Event 2016/12/9 PS-TEPC was launched by HTV-6 LHEX (Interface computer Telemetry 2016/12/14 PS-TEPC was installed in JEM for telemetry and Computer on the command system) ground (JAXA TSC) Initial check and configuration were done Command 2016/12/28 Experiments were started PS-TEPC has been operated well withoutA.Ochi fatal 5th MPGD trouble Conference until now.2017/5/24 19 ETCC based gamma-ray camera using MPGD A.Ochi 5th MPGD Conference 2017/5/24 20 T. Tanimori, Kyoto-u Kyoto university launched the venture business: “Kyoto Space Gamma ” for radiation vidualization system (founded in 1st March 2017) Base technology is ETCC (Electron Tracking Compton Camera) with μ-PIC 30cm-cubic Gaseous Time Projection Chamber --- tracking of recoil electron --- SPD ->a Point Spread Function(PSF) Both γ-ray imaging and spectroscopy are available Color image Fine 3D-electron tracking gives ϕ, and well-definedA.Ochi 5th MPGD PSF Conference (1-2˚)2017/5/24 21 T. Tanimori, Kyoto-u Medical equipment ◦ Development and Pruduction of cancer diagnostic system with combination of BNCT (Boron Neutron Capture Therapy) and ETCC technique ◦ Low dose Gamma camera Radiation monitoring equipment ◦ Providing “Radiation Visualization Equipment”.
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