SN0412 : A Second TPC Test with Varied Anode Gain

Author(s):D. Hardtke, H. Matis, H. Wieman, B. Stringfellow
Date:Sep. 29, 1999
Abstract:The anode voltage across 8 outer sector pad-rows is varied during cosmic running with half field (B=0.25 Tesla). We study the efficiency, measured gain, and resolution as a function of anode wire voltage. The anode voltage is found to have been below the optimum level for the 1999 engineering run.
Keywords:free quarks data MWPC