KTAG: The Kaon Identification Detector for CERN experiment NA62
| Autor: | Fry, JR, Collaboration, CERN NA62 |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Physics
Nuclear and High Energy Physics Photomultiplier Large Hadron Collider Physics::Instrumentation and Detectors 010308 nuclear & particles physics Cherenkov detector Detector 01 natural sciences Signal Charged particle law.invention Nuclear physics law 0103 physical sciences Monochromatic color 010306 general physics Faraday cage Instrumentation |
| Zdroj: | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT |
| Popis: | In the study of ultra-rare kaon decays, CERN experiment NA62 exploits an unseparated monochromatic (75 GeV/c) beam of charged particles of flux 800 MHz, of which 50 MHz are K + . Kaons are identified with more than 95% efficiency, a time resolution of better than 100 ps, and misidentification of less than 10−4 using KTAG, a differential, ring-focussed, Cherenkov detector. KTAG utilises 8 sets of 48 Hamamatsu PMTs, of which 32 are of type 9880 and 16 of type 7400, with signals fed directly to the differential inputs of NINO front-end boards and then to TDC cards within the TEL62 system. Leading and trailing edges of the PMT signal are digitised, enabling slewing corrections to be made, and a mean hit rate of 5 MHz per PMT is supported. The electronics is housed within a cooled and insulated Faraday cage with environmental monitoring capabilities. |
| Databáze: | OpenAIRE |
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