Detector Technology R&D in IPNS before 2004

1. Detector Technology R&D in IPNS before 2004 Belle Cryogenics 12GeVPS TRISTAN ATLAS DAQ J-PARC ILC ASIC Computing Almost independent R&D No interactions among four

2. Detector Technology Project (DTP) in IPNS since 2005 DAQ Belle 12GeVPS TRISTAN ATLAS Computing SOI Pixel technology New photon detector 2D gas detector ASIC J-PARC Cryogenics ILC Common R&D activity for each technology Active interactions among the projects

3. Pixel with SOI technology

4. Unique sensor fabrication with company (OKI) (cf SOI wafer from France (SOITEC) ) ATLAS, Belle, JAXA, FNAL, LBNL and Hawaii !

6. 5mm FY2007 submission Just arrived !

7. Multipixel GM-APD array PPD 100 – 1600 pix 1mm GM-APD Quench resistor 20 x 20 pix Bias bus RICH2007 @Trieste Junji Haba, KEK

8. What is PPD? • Proposed generic name in the PD07 workshop held in Kobe for • Multipixel Geiger-mode APD array referred formerly and differently as • SiPM (MEPHI/PULSAR, MPI, ITCirst) • MGPD (CALICE) • MRS-APD(CPTA) • PSiPs(aPeak) • G-APD(Dubna/Mikron) • SPM(SensL) • MPPC(HPK) ………. • A novel and unique solid state sensor which can count photon. RICH2007 @Trieste Junji Haba, KEK

9. Photon counting with PPD g -Vbias   GM-APD output Quench resistor g Q Q Musienko @PD07 2Q Photon counting possible with a clearly quantized signal RICH2007 @Trieste Junji Haba, KEK

10. Counting much easier PMT RICH2007 @Trieste Junji Haba, KEK

11. Photon detection efficiency 1600 pixel Sensitivity (arbitrary) y-point (2mm pitch) One pixel x-point (2mm pitch) • Photon Detection Efficinecy (PDE) is determined byPDE = egeom Q.E.  egeiger egeom :fill factor Q.E. : wave length dependent egeiger: Bisa voltage dependent • 25 oC • 20 oC • 15 oC Laser spot scan RICH2007 @Trieste Junji Haba, KEK

12. T2K PPD T2K has ordered PPD (HPK MPPC) after the R&D for 3 years under IPNSDTP RICH2007 @Trieste Junji Haba, KEK

13. Non-linearity:much better than expected ILC • Fatal non-linearity due to finite number of pixels. • Limits the dynamic range for calorimeter application. • Very fast recovery (~ 5 nsec) could push the limit away if t is much longer. • (each can count several photons !) HPK 1600pix Sudo @ JPS07 Uozumi@VCI2007 RICH2007 @Trieste Junji Haba, KEK

14. Noise @ low temperature Otono @PD07 VOV RICH2007 @Trieste Junji Haba, KEK

15. Belle RICH application 3.5mm 6mm 15o 1mm Belle Machined from a plastic plate (HERA-B RICH lens material). area ratio 12 Qc Accumulated rings in Cherenkov space RICH2007 @Trieste Junji Haba, KEK

16. 2D MPGD(Micro Pattern Gas Detector)A wireless gas detector Electric field Hole diameter70mm Hole pitch140mm Thickness50mm Cu thickness5mm • Developed by F.Sauli (CERN) in 1997. • NIMA 386(1997)531

17. 1 2 3 Evaluation of various GEMs with company

18. GEM for high counting MWPC limitation Wire spacing: 1~2 mm Gain dropping @ high rate Micro strip gas chamber Discharge problem Micromegas Another candidate GEM Flat gain over 105 Hz/mm2 I like flexibility of configuration Good characteristics of signal Signal is generated by electron Not by ion No ion tail and pole cancellation electronics J-PARC MWPC 104 105 GEM I took these ideas and figures from F. Sauli’s presentation at XIV GIORNATE DI STUDIO SUI RIVELATORI Villa Gualino 10-13 Febbraio 2004 2007/12/14 MPGD WS@Osaka, K. Ozawa

19. One thing to note One of the initial FJPPL projects started at 2006 Expectation of any collaboration among MPGD group, ILC-TPC and T2K-TPC Not very active so far….

20. Next mission:Detector Technology Project (DTP) for other fields than HEP or NP

21. ｎ ｎ Cu a 10B a Polyimide Ar-CO2 Cathode Neutron conversion B-GEM Multipier Cu-GEM Readout Pad Multilayer neutron detector J-PARC Neutron Scienece GEM for Neutron detector • No expensive 3He nor a high pressure vessel • Flexible shape • Good precision in space and time • Insensitive to g • High count rate capability

22. SiTCP (DTP DAQ group) Ethernet GEM detector Complete module for Neutron detector by DTP Electronics with FE2006 (DTP ASIC group) LV HV

23. 20mm 14mm ASICFE2006 DTP ASIC group To strengthen the activities under the FJPPL collaboration (DE LA TAILLE talk)

24. Neutron 2D imaging 1.6mm pad 2006 0.8mm pad 2007 10mm Cdスリット

25. Laue spots for Single cyrstalK2SeO4 λ＝ 2.2Å ~40° ~90° 2q

26. Medical application PET with PPD/TPC • Spatial resolution is much better in 3D. • (DOI also known with similar precision) • XeTPC is ideal PET camera. • Spatial resolution is greatly improved by • finer granularity (~1 mm of crystal block size). • PPD is ideal to read out each individual crystals! Talk by MERY

27. Gas handling panel 0.75m3 Tank PT Cryocooler 700W compressor Test chamber LXe cryogenic system at KEK P Circulation Pump (max:20L/min) P m P Heat exchanger PTC 0.75m3 Tank TPC Xe cylinder 99.999%Xe H2O, O2<0.1ppm SAES Getter Monotor Talk by HARUYAMA Recovery Bottle(3.75L) Inner volume ~4L

28. + - + - 4D Detector combining TPC, GEM, Pixels and Photon sensor Drift grid Ionizing particle Xenon GEM x, y, z(t) TimePix Amplification System (MPGD) Qpix chip being developed

29. Astropartcle THz imaging Superconducting Tunneling Junction (STJ) device Josephson device to detect 100GHz – FIR photons D(meV) T(K)

30. Ultimate sensitivity/resolution for low energy photon THz UV X IR CMB n’n g THz imaging Compact ERL Energy resolution (eV) Energy of photons

31. KEKDTP Clean Rooms built Mar08 300 m2 Room A: 15m x 10m (Class 10000) Room B: 15m x 10m (Class 100000) Yellow room: 5m x 6m (Class 1000, in Room A) STJ, SOI Si Tracker expected to boost activity B A Y 0.3K cryostat (Mar.08) Sputtering/Etching machines (~Jul.08 from RIKEN) Mask aligner (Mar.08)

32. Dedicated test beam line (FTBL) 8 GeV KEKB electron FUJI Intersection of KEKB 0.5 – 3.0 GeV electron

33. Summary • Detector Technology is a basic strength for every research activity. • DTP should be a versatile and common to all the research activities in KEK. • KEKDTP for Innovative Particle Detector is one of the keys for the future of KEK.