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Published byMarjory Baldwin Modified over 8 years ago
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by Douglas Higinbotham
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Added Cherenkov and Sieve Plate
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Transversity/d2n experiment was the most Recent ELECTRON package measurement Equipment 3 MWDC Gas Cherenkov PreShower Timing Scintillators Shower ~2” Thick Lead Sieve and Steel Detector Shielding Mixed DAQ of Fastbus and VME
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Left HRS BigBite Right HRS BigBite Electronics
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Magnet Continues To Work Without Issue (one spare coil) [but it is old, i.e. my thesis magnet] Power Supply Has Had Only Minor Problems Problem Tends To Be With Communication We Rarely Change Field, So Not Big Issue Technicians Have Tried To Fix This New “Foot” For Magnet Required For Safety Have Field Clamps Have Side Detector Shielding (may be problem) Would Like Better Internal Shielding For the Magnet (Multi-Experiment Problem)
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BigBite/SBS experiments will setup in space in test lab. (waiting for test lab refurbishment to be done) Bertha Power Supply (440V) Will Be Moved To Test Lab Single Source Of Power Solves Many Grounding Problems! Typical to have BigBite together ~1 year before experiment so problems can be addressed. End of Summer 2014 BigBite should be together in test lab.
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William & Mary, NC A&T State, Jefferson Lab, Cal. State LA, Glasgow Final Design Work Should Start As Soon As Possible
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J. Annand has produced phase II prototype of NINO front-end card. Successfully tested phase I card using signals similar to expected small-amplitude single PE signals from GRINCH. K. Aniol recently completed purchase for all NINO cards. 12
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Temple, Jefferson Lab
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Shown 1.4 GeV particles, rays produced using a transport function from LeRose.
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Many projects need to be completed to get the electron package and electronics ready for Fall 2015 Two Cherenkovs Being Worked On High rate capable GRINCH (off-line analysis) Refurbishment of BBC (can be put in trigger) BigBite equipment will start moving to the testlab next month.
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