Performance of a monolithic LaBr3:Ce crystal coupled to an array of silicon photomultipliers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F16%3A00240463" target="_blank" >RIV/68407700:21670/16:00240463 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.nima.2015.11.148" target="_blank" >http://dx.doi.org/10.1016/j.nima.2015.11.148</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.nima.2015.11.148" target="_blank" >10.1016/j.nima.2015.11.148</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance of a monolithic LaBr3:Ce crystal coupled to an array of silicon photomultipliers

Popis výsledku v původním jazyce

A gamma-ray detector composed of a single 28 x 28 x 20 mm(3) LaBr3:Ce crystal coupled to a custom built 4 x 4 array of silicon photomultipliers was tested over an energy range of 30 keV to 9.3 MeV. The silicon photomultipliers were initially calibrated using 20 ns light pulses generated by a light emitting diode. The photodetector responses measured as a function of the number of incident photons were found to be non-linear and consistent with model predictions. Using corrections for the non-linearity of the silicon photomultipliers, the detector showed a linear response to gamma-rays with energies from 100 keV to the maximum available energy of 9.3 MeV. The energy resolution was found to be 4% FWHM at 662 keV. Despite the large thickness of the scintillator (20 mm) and a 5 mm thick optical window, the detector was capable of measuring the positions of the gamma-ray interaction points. The position resolution was measured at 356 keV and was found to be 8 mm FVVHM in the detector plane and 11 mm FWHM for the depth of interaction. The detector can be used as a building block of a larger calorimeter system that is capable of measuring gamma-ray energies up to tens of MeV.

Název v anglickém jazyce

Performance of a monolithic LaBr3:Ce crystal coupled to an array of silicon photomultipliers

Popis výsledku anglicky

A gamma-ray detector composed of a single 28 x 28 x 20 mm(3) LaBr3:Ce crystal coupled to a custom built 4 x 4 array of silicon photomultipliers was tested over an energy range of 30 keV to 9.3 MeV. The silicon photomultipliers were initially calibrated using 20 ns light pulses generated by a light emitting diode. The photodetector responses measured as a function of the number of incident photons were found to be non-linear and consistent with model predictions. Using corrections for the non-linearity of the silicon photomultipliers, the detector showed a linear response to gamma-rays with energies from 100 keV to the maximum available energy of 9.3 MeV. The energy resolution was found to be 4% FWHM at 662 keV. Despite the large thickness of the scintillator (20 mm) and a 5 mm thick optical window, the detector was capable of measuring the positions of the gamma-ray interaction points. The position resolution was measured at 356 keV and was found to be 8 mm FVVHM in the detector plane and 11 mm FWHM for the depth of interaction. The detector can be used as a building block of a larger calorimeter system that is capable of measuring gamma-ray energies up to tens of MeV.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BG - Jaderná, atomová a molekulová fyzika, urychlovače

OECD FORD obor

—

Projekt

<a href="/cs/project/LM2011030" target="_blank" >LM2011030: Van de Graaff - urychlovač iontů HV2500 jako laditelný zdroj neutronů v rámci české a evropské velké infrastruktury</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2016

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Instruments and Methods in Physics Research, Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

ISSN

0168-9002

e-ISSN

—

Svazek periodika

810

Číslo periodika v rámci svazku

810

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

13

Strana od-do

107-119

Kód UT WoS článku

000368632900017

EID výsledku v databázi Scopus

2-s2.0-84950250904