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Message ID: 21     Entry time: Wed Jan 14 15:29:01 2015
Author: Patrick 
Subject: Filtered switch mode PSU performance 

Trying the AIDA format power supply with the simple filters installed.

The detector is attached and HV of 200v@3.8uA

Using one channel from each FEE64 as a guide to compare performance. Using the Integrate analysis function Peak width.

With the bench power supply and the restored setup for the ASICs.

FEE64 #11:1.4.L:311, #12:2.8.L:183, #13:1.4.L:202, #14:1.4.L:342

Change to the filtered power supply

FEE64 #11:1.4.L:345, #12:2.8.L:414, #13:1.4.L:311, #14:1.4.L:476

Add Braid between the LEMO00 connectors on the two adaptor boards using "croc" clips.

FEE64 #11:1.4.L:172, #12:2.8.L:141, #13:1.4.L:106, #14:1.4.L:161

Change the shaping time of all the ASICs from 0.5uS to 5uS

FEE64 #11:1.4.L:128, #12:2.8.L:127, #13:1.4.L:119, #14:1.4.L:199

 

I think this means the AIDA power supply with the simple filters is equivalent or better than the bench supply.

Good news I think.....

It needs a more extensive test ( more channels ? )

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