Résumé
At HERA, luminosity is determined on-line and bunch by bunch by measuring the bremsstrahlung spectrum from e-p collisions. The H1 collaboration has built a completely new luminosity system in order to sustain the harsh running conditions after the four-fold luminosity increase. Namely, the higher synchrotron radiation doses and the increased event pile-up have governed the design of the two major components, a radiation-resistant quartz-fiber electro-magnetic calorimeter, and a fast readout electronics with on-line energy histogramming at a rate of 500 kHz. An overview of the different components of the new luminosity system is given, and the commissioning status is reported.
| langue originale | Anglais |
|---|---|
| Pages (de - à) | 45-50 |
| Nombre de pages | 6 |
| journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 494 |
| Numéro de publication | 1-3 |
| Les DOIs | |
| état | Publié - 21 nov. 2002 |
| Evénement | INSTR02 - Novosibirisk, Russie Durée: 28 févr. 2002 → 6 mars 2002 |
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