Difference between revisions of "February 16, 2020"
From GlueXWiki
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'''CCAL discussion''' | '''CCAL discussion''' | ||
| + | |||
* Order (refurbish) dividers, use bypassed amplifier (and gain of 3) | * 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) | ::: (used CCAL in GlueX runs at high luminosity) | ||
| − | + | * likely do not need an amplifier in most FCAL insert layers | |
| − | + | * Do we need to modify the amplifier ? | |
:: - modify the active base | :: - modify the active base | ||
:: - redesign an amplifier, use additional power line to supply the on-board amplifier | :: - redesign an amplifier, use additional power line to supply the on-board amplifier | ||
:: - use external amplifiers (position in the FCAL dark room) | :: - use external amplifiers (position in the FCAL dark room) | ||
:: - do not modify the active base, apply non-linearity corrections | :: - do not modify the active base, apply non-linearity corrections | ||
Revision as of 12:16, 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
- 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
