Difference between revisions of "Time-of-Flight Cheat Sheet"
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* PMT's | * PMT's | ||
** all modules have two PMT's except half-length modules which have one | ** all modules have two PMT's except half-length modules which have one | ||
− | ** count is 2 | + | ** count is 2×(92-8) + 8 = 176 |
Revision as of 10:50, 11 August 2011
- number of layers: 2
- horizontal and vertical orientation
- if no special modules, would be 42 counters per layer
- special modules take up 4 standard module spaces per layer
- two standard spaces: half-width modules
- two standard spaces: half-length modules
- count per layer
- standard modules: 38
- half-width modules: 4
- half-length modules: 4
- totals (both layers)
- standard modules: 76
- half-width modules: 8
- half-length modules: 8
- sum of all modules: 92
- PMT's
- all modules have two PMT's except half-length modules which have one
- count is 2×(92-8) + 8 = 176