Difference between revisions of "CPP-NPP Tagger Microscope"
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#* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4972 GlueX-doc-4972] | #* [https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=4972 GlueX-doc-4972] | ||
# Energy assignment | # Energy assignment | ||
− | #* GlueX: We have a total of 102 microscope channels covering the energy range from 8.2 - 9.2 GeV for a 12 GeV beam. | + | #* GlueX: We have a total of 102 microscope channels covering the energy range from 8.2 - 9.2 GeV for a 12 GeV beam. (The energy numbers need to be scaled for other electron beam energies). |
#* CPP: We only have 96 microscope channels (last bundle of 6 does not fit), covering the energy range of 4.7 - 6.2 GeV for a 12 GeV beam. I assume that the software will retain 102 channels but the last channels should never show hits. | #* CPP: We only have 96 microscope channels (last bundle of 6 does not fit), covering the energy range of 4.7 - 6.2 GeV for a 12 GeV beam. I assume that the software will retain 102 channels but the last channels should never show hits. | ||
+ | #* The hodoscope counter numbers in the array closest to the focal plane (x=-8 cm) are 222 (E=6.179 GeV) and 246 (E=4.738 GeV). | ||
#* This information should be sufficient to create the table that assigns energy to microscope channels. | #* This information should be sufficient to create the table that assigns energy to microscope channels. |
Revision as of 17:20, 16 March 2022
- Description of move
- GlueX-doc-5420 Beamline Meeting Jan 19, 2022 (James McIntyre)
- Schematics of the microscope move (Elton)
- Energy assignment
- GlueX: We have a total of 102 microscope channels covering the energy range from 8.2 - 9.2 GeV for a 12 GeV beam. (The energy numbers need to be scaled for other electron beam energies).
- CPP: We only have 96 microscope channels (last bundle of 6 does not fit), covering the energy range of 4.7 - 6.2 GeV for a 12 GeV beam. I assume that the software will retain 102 channels but the last channels should never show hits.
- The hodoscope counter numbers in the array closest to the focal plane (x=-8 cm) are 222 (E=6.179 GeV) and 246 (E=4.738 GeV).
- This information should be sufficient to create the table that assigns energy to microscope channels.