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Re: Need of a preamplifier [message #730 is a reply to message #721]

Mon, 09 August 2004 22:45

Sascha Freuen
Messages: 9
Registered: August 2004
Location: Heidelberg PI

occasional visitor

From: *dip.t-dialin.net

Conditioning of Chamber L2C0#3:
==================================

Approaching the following settings in steps of 50V AnodeVoltage, after each step waiting till the Anodecurrent goes down under 10 nA :
AnodeVoltage = 1600 V , DriftVoltage = - 1935 V

3 times in the first hours with this settings the trip-current of 5 uA was reached, although besides the Anodecurrent seemed to be on a constant lvl of ~ 5 nA

During a second measurement over night (during first night a current trip happend) we saw this strange? progression of the Anodecurrent :

The next night everything seemed to be pretty normal :

During one more test with DriftVoltage = -2100 V the Anodecurrent was constantly ~6 nA

I propose to implement a new forum-section "Alice TRD Chamber testing"

Regards

Sascha

[Updated on: Wed, 11 August 2004 00:45]

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[Message index]

		Need of a preamplifier By: Chilo Garabatos on Fri, 06 August 2004 19:19
		Re: Need of a preamplifier By: Clemens Adler on Mon, 09 August 2004 09:06
		Re: Need of a preamplifier By: Chilo Garabatos on Mon, 09 August 2004 11:12
		Re: Need of a preamplifier By: Harald Appelshaeuser on Mon, 09 August 2004 11:25
		Re: Need of a preamplifier By: Clemens Adler on Mon, 09 August 2004 12:18
		Re: Need of a preamplifier By: Sascha Freuen on Mon, 09 August 2004 22:45
		Re: Need of a preamplifier By: Harald Appelshaeuser on Tue, 10 August 2004 10:39
		Re: Need of a preamplifier By: Sascha Freuen on Tue, 10 August 2004 13:28

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