Difference between revisions of "February 16, 2020"
From GlueXWiki
(Created page with "[https://halldweb.jlab.org/detectors/fcal2/dividers/design_meeting_2_16_2021 Amplifier linearity tests]") |
|||
(5 intermediate revisions by the same user not shown) | |||
Line 1: | Line 1: | ||
− | [https://halldweb.jlab.org/detectors/fcal2/dividers/design_meeting_2_16_2021 Amplifier linearity tests] | + | * [https://halldweb.jlab.org/detectors/fcal2/dividers/design_meeting_2_16_2021/fcal_amp_lin.pdf Amplifier linearity tests] |
+ | |||
+ | |||
+ | '''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 |
Latest revision as of 12:17, 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