Difference: Minutes2015-02-02 (1 vs. 2)

Revision 2
04 Feb 2015 - Main.ThomasHeld
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META TOPICPARENT name="ForwardEndcapMeetings"

Minutes of the forward endcap EMC meeting, 2nd of February 2015, SeeVogh, 15:00-15:35

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Preamplifier
  • Tom: Will need about 150 VPTT preamplifiers with factor 2 more gain. I.e. 1V/pC. Werner will try and send test versions, if possible.
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  • Tom: New HV dividers are good for 1500 V. VPTTs give about 25% more signal at 1500 V compared to 1000 V. Werner: Basel can produce new HV dividers.
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  • Tom: New HV dividers are good for 1500 V. VPTTs give about 25% more signal at 1500 V compared to 1000 V. Werner: Basel can produce new HV dividers. (Remark: There is no intention to go to 1500 V of normal operating voltage. We just have the possibility now to equalize responses of VPTT-groups and fine tune the dynamic range to maximum preamp-output at maximum deposited energy. Tom)
 
  • Tom: Tests of new APD preamp is ongoing (ringing tests).
  • Werner: Wiener could improve current measurements for PL512 (if more modules are needed). Decision: not required. For Endcap existing module is ok.
 
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