Difference between revisions of "BCAL Readout Segmentation Task group Meeting: Sep 26, 2011"
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=Minutes= | =Minutes= | ||
==Participants== | ==Participants== | ||
| − | '' | + | ''David L., Elton S., Andrei S., Zisis P., Irina S., Matt S., Beni Z., Eugene C.'' |
| + | |||
| + | ==BCAL Timing Resolutions== | ||
| + | |||
| + | |||
| + | ==Photon-Neutron Separation with BCAL== | ||
| + | Andrei showed slides summarizing a Monte Carlo study he and Irina are currently performing to investigate the neutron-photon separation capability of the BCAL. The study uses the ratio of energy deposited in the innermost layer to that deposited in the outermost layer to distinguish showers that are likely neutrons. Results indicate that cutting on this ratio at the edge of the high-efficiency region for photons results in removing all but 30%-40% of the neutrons. The exact value is energy dependent. Other points made during the presentation: | ||
| + | |||
| + | * The 1-2-3-4 scheme appears to have no advantage over the 3-3-4 scheme when using the ratio method. | ||
| + | * The ratio method compliments the TOF method. The TOF method does not work well at higher energies, but the ratio method does. | ||
| + | |||
| + | Andrei suggested that a finer segmentation of the outermost layer might improve the results. Perhaps a 2x2 rather than a 1x4 for the outer region. | ||
==Action Items== | ==Action Items== | ||
''TBD'' | ''TBD'' | ||
Revision as of 09:48, 27 September 2011
Contents
Meeting Info
Time:
- 1:30 JLab
- 11:30 Regina
Location:
- CC F326-327
Vid-con:
- ESNet 8542553
Agenda
Review action items from previous meeting
New Agenda items
- BCAL Timing Resolutions (David L.)
- Photon-Neutron Separation with BCAL (Andrei S. and Irina S.)
Minutes
Participants
David L., Elton S., Andrei S., Zisis P., Irina S., Matt S., Beni Z., Eugene C.
BCAL Timing Resolutions
Photon-Neutron Separation with BCAL
Andrei showed slides summarizing a Monte Carlo study he and Irina are currently performing to investigate the neutron-photon separation capability of the BCAL. The study uses the ratio of energy deposited in the innermost layer to that deposited in the outermost layer to distinguish showers that are likely neutrons. Results indicate that cutting on this ratio at the edge of the high-efficiency region for photons results in removing all but 30%-40% of the neutrons. The exact value is energy dependent. Other points made during the presentation:
- The 1-2-3-4 scheme appears to have no advantage over the 3-3-4 scheme when using the ratio method.
- The ratio method compliments the TOF method. The TOF method does not work well at higher energies, but the ratio method does.
Andrei suggested that a finer segmentation of the outermost layer might improve the results. Perhaps a 2x2 rather than a 1x4 for the outer region.
Action Items
TBD
