Difference between revisions of "Alternative readout"
From GlueXWiki
(→Options for readout of the Bcal using existing technologies) |
(→Options for readout of the Bcal using existing technologies) |
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* [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=832 Readout of the barrel calorimeter based on conventional photomultiplier tubes] (GlueX-doc-832, Jun 2007) | * [http://argus.phys.uregina.ca/cgi-bin/private/DocDB/ShowDocument?docid=832 Readout of the barrel calorimeter based on conventional photomultiplier tubes] (GlueX-doc-832, Jun 2007) | ||
* Issues that need to be considered (rough outline) | * Issues that need to be considered (rough outline) | ||
| − | * | + | *# light guides and collection |
| − | * | + | *#light detector |
| − | ** magnetic fringe fields / shielding | + | *#* planacons, wire mesh pmts |
| − | ** cabling / number and sizes of cables / signal degradation | + | *# magnetic fringe fields / shielding |
| − | ** dark box / "wrapping of detector" | + | *#* new field calculations using ANSYS almost ready |
| − | ** impact on photon reconstruction [what is our current geometry?] | + | *# cabling / number and sizes of cables / signal degradation |
| − | ** cost estimates | + | *#* cable differences between various detectors, e.g. HV |
| + | *# dark box / "wrapping of detector" | ||
| + | *#* presently no scheme has been worked out for any scenario | ||
| + | *# impact on photon reconstruction [what is our current geometry?] | ||
| + | *#* what material is included for the WCs/SiPMs/cables? | ||
| + | *# cost estimates | ||
* Comments: | * Comments: | ||
** Area of fibers cover 50% of the area of the end of the Bcal. Reduction is 2. | ** Area of fibers cover 50% of the area of the end of the Bcal. Reduction is 2. | ||
Revision as of 08:39, 9 June 2008
Options for readout of the Bcal using existing technologies
- Readout of the barrel calorimeter based on conventional photomultiplier tubes (GlueX-doc-832, Jun 2007)
- Issues that need to be considered (rough outline)
- light guides and collection
- light detector
- planacons, wire mesh pmts
- magnetic fringe fields / shielding
- new field calculations using ANSYS almost ready
- cabling / number and sizes of cables / signal degradation
- cable differences between various detectors, e.g. HV
- dark box / "wrapping of detector"
- presently no scheme has been worked out for any scenario
- impact on photon reconstruction [what is our current geometry?]
- what material is included for the WCs/SiPMs/cables?
- cost estimates
- Comments:
- Area of fibers cover 50% of the area of the end of the Bcal. Reduction is 2.
- Area of the output of the WC (1.2 cm2) reduces the readout by 4cm2/1.2cm2 = 3.3.
- The Sketch below is to illustrate the space constraints for any light collection and readout system:
