TRT test beam 2002 short summary
Software required for the offline analysis:
atlsim framefork consisting of two executables
- /afs/cern.ch/atlas/software/dist/4.1.0/Applications/AtlsimMain/AtlsimMain-01-02-07/Linux-gcc-opt/atlsim.exe
(the framework)
- /afs/cern.ch/atlas/software/dist/4.1.0/Tools/agetof/agetof-00-01-11/Linux-gcc-opt/agetof.exe
(the language parser)
CVS repository with raw data unpacking routines, online monitoring and offline analysis software:
/afs/cern.ch/user/s/smirnov/public/xtrt/
It consists basically of
- Main steering kumac: run.kumac
- Unpacking routines:
- camac.age
- silicon.age
- rod.age
- roddsm.age
- Reconstruction of beam particle track:
- Analysis routines:
- radiator.age
- highrate.age
- trt.age
High rate studies
pions 250 GeV
Gas mixture: 70% Xe + 27% CO2 + 3% O2 Gas gain: 2.5x104
ASDBLR electronics
| | Threshold |
|---|
| Rate | 215 eV | 250 eV | 300 eV | 350 eV |
|---|
| 0 MHz | 2171 | 2166 | 2172 | 2173 |
| 4.2 MHz | 2177 | 2176 | 2175 | 2174 |
| 8.5 MHz | 2178 | 2184 | 2185 | 2186 |
| 12.5 MHz | 2190 | 2189 | 2188 | 2187 |
| 17.5 MHz | 2191 | 2192 | 2193 | |
DSM electronics
Reduced voltage on ASDBLR chip
| | Threshold |
|---|
| Rate | 195 eV | 215 eV | 240 eV | 290 eV | 340 eV |
|---|
| 0 MHz | 2199 | 2197 | 2198 | 2200 | 2201 |
| 4.2 MHz | 2206+2207 | 2202 | 2203 | 2204 | 2205 |
| 8.5 MHz | 2209 | 2210 | 2211+2214 | 2215 | |
| 12.5 MHz | 2217 | 2218 | 2219 | | |
| 17.5 MHz | 2222 | 2220 | 2221 | 2223 | 2224 |
DSM electronics
Nominal voltage on ASDBLR chip
| | Threshold |
|---|
| Rate | 200 eV | 250 eV | 300 eV | 400 eV |
|---|
| 0 MHz | 2353 | 2354 | 2355 | 2356 |
| 4.2 MHz | 2357 | 2358 | | |
| 8.5 MHz | 2359 | 2363 | 2372 | |
| 12.5 MHz | 2365 | 2366 | 2371 | |
| 17.5 MHz | 2367 | 2368 | 2370 | |
DMILL electronics
| | Threshold |
|---|
| Rate | 200 eV | 250 eV | 300 eV | 400 eV |
|---|
| 0 MHz | 2249+2311 | 2256+2312 | 2242+2243+2244+2245 | 2257 |
| 4.2 MHz | 2264 | 2265 | 2269 | 2295 |
| 8.5 MHz | 2296 | 2297 | 2298 | 2299 |
| 12.5 MHz | 2307 | 2308 | 2309 | 2310 |
| 17.5 MHz | 2246 | 2260 | 2261 | 2263 |
Study of particle density effects
ASDBLR electronics
| | Threshold |
|---|
| Rate | 250 eV | 300 eV | 400 eV |
|---|
| 0 kHz/cm | 2318+2319 | 2320+2322 | 2327 |
| 150 kHz/cm | 2342 | 2343 | 2344 |
| 220 kHz/cm | 2339 | 2340 | 2341 |
| 350 kHz/cm | 2329 | 2337 | 2338 |
Straws in magnetic field
ASDBLR electronics
| Offset | B=0 | B=1.56 T |
|---|
| 0 | 2353+2354+2370 | 2367+2368 |
| 300 mkm | 2355+2356+2371 | 2365+2366 |
| 400 mkm | 2357+2358+2372 | 2359+2363 |
Sector prototype studies
Gas mixture: 70% Xe + 27% CO2 + 3% O2 Gas gain: 2.5x104
Drift-time measurements, cross-talk studies
DMILL electronics
| | Low threshold |
|---|
| High threshold | 200 eV | 250 eV | 300 eV | 400 eV |
|---|
| 5 keV | 2197 | 2198 | 2199 | 2200 |
| 6 keV | 2223 | 2224 | 2225 | |
| 7 keV | 2201 | 2215 | 2217 | 2218 |
| 9 keV | 2219 | 2220 | 2221 | 2222 |
DSM electronics
| | Low threshold |
|---|
| High threshold | 200 eV | 250 eV | 300 eV | 400 eV |
|---|
| 5 keV | 2242-2246,2249,2256 | 2257,2260 | 2261,2263 | 2264,2265 |
| 7 keV | 2269 | 2265 | 2296 | 2230,2307 |
| 9 keV | 2297,2309-2312 | 2298 | 2299 | 2308 |
Gas mixture: 70% Xe + 30% CO2 Gas gain: 2.5x104
DMILL electronics
| | Low threshold |
|---|
| High threshold | 200 eV | 250 eV | 300 eV |
|---|
| 5 keV | 2364,2365,2370,2371 | 2353-2360 | 2367,2368 |
Time-Over-Threshold measurements with sector prototype
20 GeV beam
Gas mixture: 70% Xe + 27% CO2 + 3% O2 Gas gain: 2.5x104
DSM electronics
High level threshold 5 keV
| | Low threshold |
|---|
| Beam | 200 eV | 400 eV |
|---|
| pions | 2318+2319 | 2320+2322 |
| electrons | 2324+2325 | 2331+2333 |
High level threshold 7 keV
| Beam | Low threshold 200 eV |
|---|
| pions | 2338+2339 |
dE/dx and transition radiation measurements
20 GeV beam
Gas mixture: 70% Xe + 27% CO2 + 3% O2 Gas gain: 2.5x104
| | Beam |
|---|
| Run type | pions | electrons + pions |
|---|
| Fe55 calibration | 2317 |
| no radiators | 2318-2320,2322,2337-2343 | 2324+2325 |
| Fe55 calibration | 2326 |
| regular radiators | 2327,2329 | 2331,2333 |
| Fe55 calibration | 2335 |
Last updated 8-Oct-2002 by SS