Geant4 simulation study on detection efficiencies of the Compton suppression system at the HL-2A tokamak

Zhang, Jie; Zhang, Pengfei; Zhang, Yipo; Yang, Jian; Yuan, Guoliang; Song, X. Y.; Li, Xu; Zhou, Yan

doi:10.1016/j.apradiso.2019.05.016

Cited by 4 publications

(2 citation statements)

References 18 publications

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“…The optimized size of the BGO secondary detector has been calculated and determined by Geant4 modeling. 24,25 The HPGe detector on the adjustment platform can move the HPGe crystal into the BGO cavity like a piston, as shown in Fig. 1, thus forming an anti-coincidence detector.…”

Section: Articlementioning

confidence: 99%

A gamma ray spectrometer with Compton suppression on the HL-2A tokamak

Zhang

Cheng

et al. 2022

Review of Scientific Instruments

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A new broad-energy, high-resolution gamma ray spectrometer (GRS) with Compton suppression function has been developed recently in the HL-2A tokamak to obtain the gamma ray information in the energy range of 0.1–10 MeV. This is the first time to develop an anti-Compton GRS for a magnetic confinement fusion device. The anticoincidence detector consists of a large-volume high purity germanium (HPGe) crystal (Φ63 × 63 mm2) as the primary detector and eight trapezoidal bismuth germinate (BGO) scintillators (trapezoid crystal with 30 mm thickness) as the secondary detector. The anti-coincidence data processing is implemented by a digital-based data acquisition system with fast digitization and software signal processing technology. Using radioisotope gamma ray sources and Monte Carlo N-Particle code, the energy and efficiency of the spectrometer have been calibrated and quantitatively tested. The Compton continuum suppression factor reaches 4.2, and the energy resolution (Full Width at Half Maximum) of the 1.332 MeV full energy peak for 60Co is 2.1 keV. Measurements of gamma ray spectra with Compton suppression using the spectrometer have been successfully performed during HL-2A discharges with different conditions. The performance of the spectrometer and the first experimental results are presented in this paper.

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Section: Articlementioning

confidence: 99%

A gamma ray spectrometer with Compton suppression on the HL-2A tokamak

Zhang

Cheng

et al. 2022

Review of Scientific Instruments

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“…It is also used in the characterization of the detector system which is the most important part of the positron emission tomography (PET), etc. GATE runs with Geant4 simulation toolkit which is the validated physics models, complex geometrical volume description and powerful 3D visualization (such as Qt mode) [8,[19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

The Determination of the Total Efficiency for NaI(Tl) Detector by GATE Simulation

Yavuzkanat¹,

Yalçın²,

Güngör³

2019

Bitlis Eren Üniversitesi Fen Bilimleri Dergisi

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In this study the total efficiency of the NaI(Tl) detector have been calculated by using Geant4 based GATE simulation program. The simulation was performed using point and disc isotropic gamma-ray sources at various distance between source and detector in the photon energy range 50-3000 keV. Results were compared with different analytical and Monte Carlo calculations obtained in the time of the periods 1958-2018. The calculated and simulated data indicated good agreement with finding more sensitive GATE simulation result in the lower energy range from 50 keV to 150 keV.

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Influences of fusion neutrons on Compton suppressed γ-spectrum analyses at the HL-2A tokamak

Zhang

Yang

et al. 2020

Applied Radiation and Isotopes

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Geant4 simulation study on detection efficiencies of the Compton suppression system at the HL-2A tokamak

Cited by 4 publications

References 18 publications

A gamma ray spectrometer with Compton suppression on the HL-2A tokamak

A gamma ray spectrometer with Compton suppression on the HL-2A tokamak

The Determination of the Total Efficiency for NaI(Tl) Detector by GATE Simulation

Influences of fusion neutrons on Compton suppressed γ-spectrum analyses at the HL-2A tokamak

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