Gamma-ray spectrometry analysis of pebble bed reactor fuel using Monte Carlo simulations

2003 ◽  
Vol 505 (1-2) ◽  
pp. 393-396 ◽  
Author(s):  
Jianwei Chen ◽  
Ayman I. Hawari ◽  
Zhongxiang Zhao ◽  
Bingjing Su
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Gamma Ray ◽  
Reactor Fuel ◽  
Gamma Ray Spectrometry ◽  
Pebble Bed ◽  
Pebble Bed Reactor ◽  
Spectrometry Analysis

Assessment of on-line burnup monitoring of pebble bed reactor fuel using passive gamma-ray spectrometry

2002 ◽  
Vol 49 (3) ◽  
pp. 1249-1253 ◽  
Author(s):  
A.I. Hawari ◽  
Jianwei Chen ◽  
Bingjing Su ◽  
Zhongxiang Zhao
Keyword(s):  
Gamma Ray ◽  
Reactor Fuel ◽  
Gamma Ray Spectrometry ◽  
Pebble Bed ◽  
Pebble Bed Reactor ◽  
On Line

Evaluation of the activation of brass apertures in proton therapy using gamma-ray spectrometry and Monte Carlo simulations

2020 ◽  
Vol 40 (3) ◽  
pp. 848-860
Author(s):  
Claus Maximilian Bäcker ◽  
Christian Bäumer ◽  
Marcel Gerhardt ◽  
Sedef Ibisi ◽  
Kevin Kröninger ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Proton Therapy ◽  
Gamma Ray ◽  
Gamma Ray Spectrometry

scholarly journals Experimental and Simulated Spectral Gamma-Ray Response of a NaI(Tl) Scintillation Detector used in Airborne Gamma-Ray Spectrometry

2021 ◽  
Author(s):  
David Breitenmoser
Keyword(s):  
Monte Carlo ◽  
Gamma Ray ◽  
Radiation Transport ◽  
Natural Uranium ◽  
Detector Response ◽  
Gamma Ray Spectrometry ◽  
Response Analysis ◽  
Maximum Relative Error ◽  
Potassium Sources ◽  
Significant Difference

<p>The objective of this work is to simulate the spectral gamma-ray response of NaI(Tl) scintillation detectors for airborne gamma-ray spectrometry (AGRS) using Monte Carlo radiation transport codes. The study is based on a commercial airborne gamma-ray spectrometry detector system with four individual NaI(Tl) scintillation crystals and a total volume of 16.8 l. Monte Carlo source-detector simulations were performed in an event-by-event mode with the commercial multi-purpose transport codes MCNP6.2 and FLUKA. Validation measurements were conducted using <sup>241</sup>Am, <sup>133</sup>Ba, <sup>60</sup>Co, <sup>137</sup>Cs and <sup>152</sup>Eu radiation sources with known activities and source-detector geometries. Energy resolution functions were derived from these measurements combined with additional measurements of natural Uranium, Thorium and Potassium sources. The simulation results are in good agreement with the experimental data with a maximum relative error in the full-energy peak counts of 10%. In addition, no significant difference between the two Monte Carlo radiation transport codes was found with respect to a 95% confidence level. The validated detector model presented herein can be adopted for angular detector response analysis and calibration computations relating radionuclide activity concentrations with spectral detector counts.</p>

scholarly journals TARANIS XGRE and IDEE Detection Capability of Terrestrial Gamma-Ray Flashes and Associated Electron Beams

2017 ◽  
Author(s):  
David Sarria ◽  
Francois Lebrun ◽  
Pierre-Louis Blelly ◽  
Remi Chipaux ◽  
Philippe Laurent ◽  
...  
Keyword(s):  
Monte Carlo ◽  
Monte Carlo Simulations ◽  
Energy Range ◽  
Gamma Rays ◽  
Gamma Ray ◽  
Electron Beams ◽  
Effective Area ◽  
Detection Rates ◽  
Transient Phenomena ◽  
Preliminary Model

Abstract. With a launch expected in 2018, the TARANIS micro-satellite is dedicated to the study of transient phenomena observed in association with thunderstorms. On-board the spacecraft, XGRE and IDEE are two instruments dedicated to study Terrestrial Gamma-ray Flashes (TGFs) and associated electron beams (TEBs). XGRE can detect electrons (energy range: 1 MeV to 10 MeV) and X/gamma-rays (energy range: 20 keV to 10 MeV), with a very high counting capability (about 10 million counts per second), and the ability to discriminate one type of particle from the other. The IDEE instrument is focused on electrons in the 80 keV to 4 MeV energy range, with the ability to estimate their pitch angles. Monte-Carlo simulations of the TARANIS instruments, using a preliminary model of the spacecraft, allow sensitive area estimates for both instruments. It leads to an averaged effective area of 425 cm2 for XGRE to detect X/gamma rays from TGFs, and the combination of XGRE and IDEE gives an average effective area of 255 cm2 to detect electrons/positrons from TEBs. We then compare these performances to RHESSI, AGILE, and Fermi GBM, using performances extracted from literature for the TGF case, and with the help of Monte-Carlo simulations of their mass models for the TEB case. Combining these data with with the help of the MC-PEPTITA Monte-Carlo simulations of TGF propagation in the atmosphere, we build a self-consistent model of the TGF and TEB detection rates of RHESSI, AGILE, and Fermi. It can then be used to estimate that TARANIS should detect about 225 TGFs/year and 25 TEBs/year.

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