Difference between revisions of "February 16, 2020"
From GlueXWiki
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* [https://halldweb.jlab.org/detectors/fcal2/dividers/design_meeting_2_16_2021/fcal_amp_lin.pdf Amplifier linearity tests] | * [https://halldweb.jlab.org/detectors/fcal2/dividers/design_meeting_2_16_2021/fcal_amp_lin.pdf Amplifier linearity tests] | ||
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* CCAL discussion | * CCAL discussion | ||
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:: Do we need to modify the amplifier ? | :: Do we need to modify the amplifier ? | ||
| + | :: - modify the active base | ||
| + | :: - redesign an amplifier, use additional power line to supply the on-board amplifier | ||
| + | :: - use external amplifiers (position in the FCAL dark room) | ||
| + | :: - do not modify the active base, apply non-linearity corrections | ||
Revision as of 12:15, 15 February 2021
- CCAL discussion
- - Order (refurbish) dividers, use bypassed amplifier (and gain of 3)
- FCAL insert
- - expected anode current < 20 uA in the inner most FCAL insert layer; current drops rapidly with the radial distance
- (used CCAL in GlueX runs at high luminosity)
- - likely do not need an amplifier in most FCAL insert layers
- - expected anode current < 20 uA in the inner most FCAL insert layer; current drops rapidly with the radial distance
- Do we need to modify the amplifier ?
- - modify the active base
- - redesign an amplifier, use additional power line to supply the on-board amplifier
- - use external amplifiers (position in the FCAL dark room)
- - do not modify the active base, apply non-linearity corrections
