Energy resolution of gamma-ray spectroscopy of JET plasmas with a LaBr3 scintillator detector and digital data acquisition
| Autor: | Massimo Nocente, Antonino Pietropaolo, V. G. Kiptily, Andre Neto, Giuseppe Gorini, A. E. Shevelev, Giovanni Grosso, B. Syme, A. Murari, E. Perelli Cippo, R. C. Pereira, M. Tardocchi, D. B. Gin, I. N. Chugunov, Jet-Efda Contributors, João M. C. Sousa, T. Edlington, Ana Fernandes, I. Proverbio |
|---|---|
| Přispěvatelé: | Nocente, M, Tardocchi, M, Chugunov, I, Pereira, R, Edlington, T, Fernandes, A, Gin, D, Grosso, G, Kiptily, V, Murari, A, Neto, A, Perelli Cippo, E, Pietropaolo, A, Proverbio, I, Shevelev, A, Sousa, J, Syme, B, Gorini, G, JET EFDA, C |
| Rok vydání: | 2010 |
| Předmět: |
Physics
Photomultiplier Jet (fluid) Resolution (mass spectrometry) Spectrometer business.industry Physics::Instrumentation and Detectors Detector fusion plasma Scintillator gamma ray spectroscopy neutron spectroscopy Optics Data acquisition FIS/01 - FISICA SPERIMENTALE JET Scintillation counter gamma ray spectrometer business Instrumentation nuclear fusion |
| Zdroj: | Review of scientific instruments 81 (2010): 104006. doi:10.1063/1.3501386 info:cnr-pdr/source/autori:Nocente M.; Tardocchi M.; Chugunov I.; Pereira R.C.; Edlington T.; Fernandes A.M.; Gin D.; Grosso G.; Kiptily V.; Murari A.; Neto A.; Perelli Cippo E.; Pietropaolo A.; Proverbio I.; Shevelev A.; Sousa J.; Syme B.; Gorini G.; JET-EFDA Contributors/titolo:Energy resolution of gamma-ray spectroscopy of JET plasmas with a LaBr(3) scintillator detector and digital data acquisition/doi:10.1063%2F1.3501386/rivista:Review of scientific instruments/anno:2010/pagina_da:104006/pagina_a:/intervallo_pagine:104006/volume:81 |
| ISSN: | 1089-7623 |
| DOI: | 10.1063/1.3501386 |
| Popis: | A new high efficiency, high resolution, fast gamma -ray spectrometer was recently installed at the JET tokamak. The spectrometer is based on a LaBr 3 (Ce) scintillator coupled to a photomultiplier tube. A digital data acquisition system is used to allow spectrometry with event rates in excess of 1 MHz expected in future JET DT plasmas. However, at the lower rates typical of present day experiments, digitization can degrade the energy resolution of the system, depending on the algorithms used for extracting pulse height information from the digitized pulses. In this paper, the digital and analog spectrometry methods were compared for different experimental conditions. An algorithm based on pulse shape fitting was developed, providing energy resolution equivalent to the traditional analog spectrometry method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|