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Barrel PID summary

Barrel PID summary. K.Inami (Nagoya). Summary of R&D at Hawaii, Cincinnati, Ljubljana and Nagoya. TOP conceptual design. Photon detector Electronics Quartz, mirror Support structure Detector design. Photon detector R&D. by Nagoya. Hamamatsu MCP-PMT (SL10) Square-shape multi-anode

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Barrel PID summary

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  1. Barrel PID summary K.Inami (Nagoya) Summary of R&D at Hawaii, Cincinnati, Ljubljana and Nagoya

  2. TOP conceptual design • Photon detector • Electronics • Quartz, mirror • Support structure • Detector design 2009/7/7-9 B2GM

  3. Photon detector R&D by Nagoya • Hamamatsu MCP-PMT (SL10) • Square-shape multi-anode • Multi-alkali photo-cathode • Gain=1.5x106 @B=1.5T • T.T.S.(single photon): ~35ps @B=1.5T • Position resolution: <5mm • Semi-mass-production (14 PMTs) QE [%] σ=34.2±0.4ps QE：24%@400nm TDC [1count/25ps] Wavelength [nm] TTS＜40ps for all channels Ave. QE：17%@400nm 2009/7/7-9 B2GM

  4. QE at 400nm (XM0001) Preliminary result from HPK New Old Measured at Nagoya 1 B2year ~ 0.7C/cm2 Lifetime issue • Multi-alkali p.c. SL10 • Added many protection for gas and ion feedback  Improved lifetime • ex. JT0087 • Obtained normal Gain and TTS • Even with improved correction efficiency (~35%  ~60%) • Put Al protection layer on 2nd MCP • ex. XM0007 • Prototype performance is OK. • Enough gain: ~5x105 • Reasonable TTS: s=35~45ps • CE: ~55% 2009/7/7-9 B2GM

  5. Photonis PMT by Ljubljana from E-PID session • MCP-PMT • Model 85015/A1 • Bialkali photocathode • 10mm pore MCP • No Al protection layer • Gain~6x105 • TTS<~40ps • Started lifetime test • 200mC/cm2 • Signal yield; 10% drop? • To be checked 2009/7/7-9 B2GM

  6. Electronics status by Hawaii • Started to design front-end electronics for HPK SL10 • HV divider circuit • BLAB3 readout board  Detector design optimization 2009/7/7-9 B2GM

  7. Radiation hardness test • Put front-end ASIC, FPGA and fiber inside detector • Check radiation hardness • Put prototype board in KEKB tunnel and check FPGA reprogram rate and fiber link degradation • Started from May 17. • Ran fine through end of Exp.69 • Need to make conclusion 2009/7/7-9 B2GM

  8. Quartz bar, mirror by Cincinnati • Quality and performance of mirror and wedge • Produced by OSI at US • Test glues • NOA63; UV cure-type • Check with laser now. • Need to be check quality for real-size quartz components 2009/7/7-9 B2GM

  9. Support structure by Hawaii • Conceptual structure design • Check distortion of quartz radiator for several designs • Quartz supported by Honeycomb box • TOP module support (Discussing with KEK mechanics group) 2009/7/7-9 B2GM

  10. Design studies by Hawaii, Ljubljana, Nagoya • Check performance for several designs • With actual effects • MCP-PMT: QE, CE, TTS, dead space • Start timing fluctuation (25ps) • Cross-checked by several simulation programs • Geant3 based (Nagoya) • Geant4 based (Hawaii) • Analytical method (Ljubljana)  Almost ready for reconstruction code 2-bar fTOP • MCP-PMT photo-cathode • Multi-alkali • GaAsP 1-bar fTOP iTOP 2009/7/7-9 B2GM

  11. Performance check by Nagoya Multi-alkali, CE=60%, l>350nm Efficiency Fake rate 2009/7/7-9 B2GM

  12. Performance check by Hawaii • Generally performance better for 2-bar except forward part • Similar tendency with Nagoya’s result Multi-alkali 2009/7/7-9 B2GM

  13. Performance check by Ljubljana GaAsP • Similar with other programs • Need to make figures for multi-alkali photo-cathode 2009/7/7-9 B2GM

  14. Design study summary • 2-bar fTOP • Multi-alkali and GaAsP p.c. is OK for backward • Start time fluctuation (25ps) makes bad performance for forward • iTOP / 1-bar fTOP • GaAsP is OK • Multi-alkali p.c. makes slightly worse performance • Need more checks • Include actual effects • Start timing fluctuation, Incident angle fluctuation • Actual design of quartz and MCP-PMT • Performance for some physics cases • With fsim • With gsim4 and analysis code 2009/7/7-9 B2GM

  15. Cost estimate & Production time • Quartz • 16~18 modules (2x40x91.5cm3 x3 + mirror, wedge) • Okamoto optics (fTOP case) • 1800x18+2700万円 ~ 3.6M$, 2 years • Zygo/OSI • Zygo quartz bar 3.5~4.1M$, 1~1.5 years • OSI mirror and wedge 0.84+0.71M$, 0.5years • MCP-PMT • Hamamatsu; 600 pieces for 2-bar TOP, 3 years • Multi-alkali photo-cathode; ~2.7M$ • GaAsP photo-cathode; ~4.2M$ • Photonis; 600 pieces for iTOP, 3 years?? • Bi-alkali photo-cathode; 3~6M$??  to be checked 2009/7/7-9 B2GM

  16. Cost estimate & Production time • Electronics • SL10 basis, frontend+backend+HV divider • 2-side readout ~0.5M$ • Without NRE, COPPER, BLAB3 ASIC • Structure • To be estimated. 2009/7/7-9 B2GM

  17. Schedule toward 2013 2009/7/7-9 B2GM

  18. Schedule toward technology choice • By the end of August • Make list of possible options • In our case, MCP-PMT choice is important. • Make performance catalogue for • MCP-PMTs • QE, CE, TTS, Gain, Lifetime, • Detector configuration • Separation power (eff./fake) • Robustness (beam BG, T0, tracking, photon loss) • By the end of December • Decide detector configuration and technology • Show test results • MCP-PMT lifetime, Simulation study, electronics test To be Checked by internal review committee? 2009/7/7-9 B2GM

  19. Summary • MCP-PMT • Hamamatsu SL10(Multi-alkali p.c., 28(22)x28(22)mm2, 4ch or 4x4ch) • Photons 850xx(Bi-alkali p.c., 59(52)x59(52)mm2, 8x8ch) • Both performance is OK. • Need a few month to confirm lifetime • Electronics • SL10 base production is in progress • Radiation hardness test done.  To be confirmed. • BLAB3 ASIC fabrication in autumn • Quartz • Zygo/OSI products are tested now. • Design study, Structure study • Need to check possible configuration with actual effects • We will discuss in detail at PID meeting at Nagoya in next week. 2009/7/7-9 B2GM

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