Difference between revisions of "Hardware changes"
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December 9, 2010: Removed gamma-det. HV from patch ([https://hallcweb.jlab.org/hclog/1012_archive/101209154450.html log entry]) | December 9, 2010: Removed gamma-det. HV from patch ([https://hallcweb.jlab.org/hclog/1012_archive/101209154450.html log entry]) | ||
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| + | January 6, 2010: Placed 2 mm lead in front of photon detector: ([https://hallcweb.jlab.org/hclog/1101_archive/110106160035.html log entry]). | ||
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| + | January 18, 2011: Reomved 1 mm lead from photon detector, now just 1 mm: ([https://hallcweb.jlab.org/hclog/1101_archive/110106160035.html log entry]). | ||
Revision as of 11:03, 26 January 2011
Hardware, configuration changes during Q-Weak running
November 5, 2010: First photon detector removed: (log entry). The second one must have been installed the same day or shortly thereafter.
November 19, 2010: Mark added 1 mm of lead in front of the photon detector: (log entry).
November 29, 2010: Busted laser safety box: (log entry).
December 7, 2010: Replaced Arshak's paddle with Moller scint. (log entry). I believe a second scintillator was hooked up to channel 11 at the same time.
December 8, 2010: Locked cavity in opposite laser helicity (log). Can't find log entry about restoration of original helicity - I'm pretty sure it was the next day.
December 9, 2010: Removed gamma-det. HV from patch (log entry)
January 6, 2010: Placed 2 mm lead in front of photon detector: (log entry).
January 18, 2011: Reomved 1 mm lead from photon detector, now just 1 mm: (log entry).
