ENC Measurement for ASIC Preamp Board as a Detector Module for PET System | Zendy

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ENC Measurement for ASIC Preamp Board as a Detector Module for PET System

Author(s) -

Nanda Nagara

Publication year - 2016

Publication title -

atom indonesia

Language(s) - English

Resource type - Journals

eISSN - 2356-5322

pISSN - 0126-1568

DOI - 10.17146/aij.2016.506

Subject(s) - preamplifier , application specific integrated circuit , detector , scintillator , avalanche photodiode , positron emission tomography , front and back ends , physics , electrical engineering , cmos , computer science , electronic engineering , engineering , optoelectronics , nuclear medicine , amplifier , medicine , mechanical engineering

We developed a gamma ray detector with an LuAG:Pr scintillator and an avalanche photodiode as a detector for a positron emission tomography (PET) system. Studies have been performed on the influences of gamma irradiation on application-specific integrated circuit (ASIC) preamp boards used as a detector module. As a device used in nuclear environments for substantial durations, the ASIC has to have a lifetime long enough to ensure that there will be a negligible failure rate during this period. These front-end systems must meet the requirements for standard positron emission tomography (PET) systems. Therefore, an equivalent noise charge (ENC) experiment is needed to measure the front-end system's characteristics. This study showed that minimum ENC conditions can be achieved if a shorter shaping time could be applied. Received: 22 October 2014 ; Revised: 23 Februari 2016 ; Accepted: 3 March 2016

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