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User name Nue

Log entry time 23:40:23 on September 11, 2009

Entry number 184916

keyword=Status of HDC1,2 & EDC1 currents during FB TDC stack survey

Thresholds
HDC1: +5.5V, HDC2:+5.5V, EDC1 +3.1V,
EDC2 +2.5V (unused)

Safety resistance is 1MOhm for HDCs.

10uA on carbon-----------------------------------
HDC1-W 1970V, 11uA
HDC1-F1 2020V, 83uA
HDC1-F2 2020V, 84uA
HDC2 1970V, 53uA

EDC1 #1-#5, all 2200V, (4.0, 4.1, 3.8, 3.0, 3.7uA)

20uA on carbon -----------------------------------
HDC1-W 1897V, 14.6uA
HDC1-F1 1965V, 117uA
HDC1-F2 1965V, 119uA
HDC2 1968V, 108uA

EDC1 #1-#5, all 2200V, (7.7, 8.0, 7.8, 7.7, 7.2uA)

30uA on carbon -----------------------------------
HDC1-W 1917V, 27.2uA
HDC1-F1 1965V, 156uA
HDC1-F2 1965V, 158.5uA
HDC2 1968V, 116.4uA

EDC1 #1-#5, all 2200V, (11.0, 11.1, 10.1, 10.6, 10.1uA)


A copy of this log entry has been emailed to: reinhold@jlab.org, nakamura@jlab.org, tangl@jlab.org,