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Plans to Test HBD Prototype in Run 6

Detailed plan to test, install, and calibrate the HBD prototype detector system at PHENIX, including lab tests, detector assembly, gas system checks, readout electronics preparation, and final positioning.

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Plans to Test HBD Prototype in Run 6

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  1. Plans to Test HBD Prototype in Run 6 Craig Woody BNL DC Meeting March 8, 2006

  2. Tests with Prototype Detector in the Lab B.Azmoun • Shows good gain and stability (no discharges) • Attainable oxygen and water levels are reasonable • Further testing requires a photocathode C.Woody, DC Meeting, 3/8/06

  3. Evaporation Facility at Stony Brook C.Woody, DC Meeting, 3/8/06

  4. Evaporation Facility at Stony Brook C.Woody, DC Meeting, 3/8/06

  5. CsI Photocathodes Produced at Stony Brook Show Good Quantum Efficiency W.Anderson B.Azmoun Relative QE at 160 nm Strip number Measured during evaporation Stony Brook Measured on VUV Spectrometer at BNL C.Woody, DC Meeting, 3/8/06

  6. FEE testing block diagram In Febrication 20:1 attenuator FEM Pulse Generator Preamp Test Jig Optical xmit 5x attenuator ADC+FPGA receiver scope Pulse Generator trigger New DCMdaughter card Clock Master data L1 trigger computer ADC Test point for receiver output Receiver C-Y.Chi C.Woody, DC Meeting, 3/8/06

  7. Test stand at Nevis ADC module Preamp test jig C-Y.Chi C.Woody, DC Meeting, 3/8/06

  8. Digitized 16mv test pulse result 2 samples at rising edge 1-2 ns time jitter on the test pulse C-Y.Chi Reverse the signal cable RMS C.Woody, DC Meeting, 3/8/06

  9. Prototype Readout Electronics • The most difficult board (ADC) is ready. • We have two boards – 96 channels • Crate, interface boards is ready • We need optical transmitter board and new DCM compressor board to readout the detector into PHENIX • Optical PCB will be in Nevis on the March 9th • The new DCM daughter card will be in Nevis on the 17th one week assembly. • We need two weeks testing time, if everything works • The odds is with us (ADC, clock master etc prototype works) • Assume we are ready to install after that. • I would expect many hours of integration works • We need to understand noise issues, zero suppression level, timing in the detector etc. • It will take a while before the readout can be fully integrated into the PHENIX DAQ • just like the experience other detectors have before us C-Y.Chi C.Woody, DC Meeting, 3/8/06

  10. Electronics Rack LeCroy 1458 2 crates for readout electronics Megapak Now installed at previous location of MVD rack C.Woody, DC Meeting, 3/8/06

  11. HBD Installation Mounts are in place to install detector in its final position Gas system in GMH and IR is essentially ready to flow gas C.Woody, DC Meeting, 3/8/06

  12. Initial Installation for Testing Prototype will add~ 3% X0 Install below beam pipe on lifting table (outside PHENIX acceptance) during initial debugging period C.Woody, DC Meeting, 3/8/06

  13. Alternative Initial Installation for Prototype C.Woody, DC Meeting, 3/8/06

  14. Plans to Install HBD Prototype in PHENIX • 3/8 – 3/19 Complete tests with prototype at BNL • Complete gain and source tests • Install mounting brackets • Install and test new preamp board • 3/20 – 4/2 Take detector to Stony Brook • Practice installing GEMs in glove box • Produce photocathode and install • Test detector with CF4 using 55Fe source and flash lamp • 4/3 – 4/9 Bring detector to PHENIX electronics room • Test detector with prototype readout electronics chain • 4/10 – 4/23 Install detector into PHENIX below beam pipe • Test gas quality with actual gas system • Test detector with prototype readout electronics in place • Develop and debug readout software • Calibrate with mips • 4/24 – 4/30 Install detector to final position in PHENIX • Collect sample of electron data ( ~ 100 e’s/pad/shift  1 week data taking) Estimate by T.Sakaguchi : min bias + ERT p>800 MeV/c C.Woody, DC Meeting, 3/8/06

  15. Status of Final Detector • PCB material arrived at CERN and PCB is now under construction • (delivery to Weizmann ~ mid March) • Panels for final detector are also under construction at Weizmann • GEM’s are being produced at CERN and delivered to Weizmann for testing • Aiming for completion of detector box by ~ mid April • (will then ship to Stony Brook) • Glove box to arrive ~ end of March • Detector to arrive at Stony Brook ~ end of April • Start producing photocathodes and install during May • Could have final detector with 2-3 detector modules installed (all that is needed • with existing prototype readout electronics) sometime during May • Possible test in PHENIX end of May – early June C.Woody, DC Meeting, 3/8/06

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