Имитационная модель исследования структуры объекта методом послойной цифровой комптоновской радиографии

2021 ◽  
pp. 62-74
Author(s):  
С.П. Осипов ◽  
Е.Ю. Усачев ◽  
С.В. Чахлов ◽  
О.С. Осипов
Keyword(s):  
Gamma Radiation ◽  
Simulation Model ◽  
Radiation Detectors ◽  
Object Structure ◽  
Special System ◽  
Mathcad Software

A simulation model of the object structure by the layered digital Compton radiography (tomography) is proposed. The developed model takes into account the geometry of experiment, the parameters of the source and the gamma radiation detectors equipped with a special system of collimators. The simulation model is implemented as a program in the MathCAD software. The capabilities of the simulation model and the corresponding code are demonstrated for an aluminum barrier with spherical local inclusions.

Comparison of the spectrometric properties of two series of CdZnTe gamma radiation detectors

2001 ◽  
Author(s):  
Reinhard Berndt ◽  
Patricia Mortreau ◽  
Alexander Braun
Keyword(s):  
Gamma Radiation ◽  
Radiation Detectors

scholarly journals A Novel Portable Gamma Radiation Sensor Based on a Monolithic Lutetium-Yttrium Oxyorthosilicate Ring

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3376
Author(s):  
Xi Zhang ◽  
Qiangqiang Xie ◽  
Siwei Xie ◽  
Xin Yu ◽  
Jianfeng Xu ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Gamma Rays ◽  
Detection Efficiency ◽  
Radiation Detection ◽  
Radiation Detectors ◽  
Large Field ◽  
Average Error ◽  
Detection Accuracy ◽  
Environmental Radiation ◽  
Radiation Sensor

Portable radiation detectors are widely used in environmental radiation detection and medical imaging due to their portability feature, high detection efficiency, and large field of view. Lutetium-yttrium oxyorthosilicate (LYSO) is a widely used scintillator in gamma radiation detection. However, the structure and the arrangement of scintillators limit the sensitivity and detection accuracy of these radiation detectors. In this study, a novel portable sensor based on a monolithic LYSO ring was developed for the detection of environmental radiation through simulation, followed by construction and assessments. Monte Carlo simulations were utilized to prove the detection of gamma rays at 511 keV by the developed sensor. The simulations data, including energy resolutions, decoding errors, and sensitivity, showed good potential for the detection of gamma rays by the as-obtained sensor. The experimental results using the VA method revealed decoding errors in the energy window width of 50 keV less than 2°. The average error was estimated at 0.67°, a sufficient value for the detection of gamma radiation. In sum, the proposed radiation sensor appears promising for the construction of high-performance radiation detectors and systems.

Probes Containing Gamma Radiation Detectors For In Vivo Tumor Detection And Imaging

1989 ◽  
Author(s):  
N. E. Hartsough ◽  
H. B. Barber ◽  
J. M. Woolfenden ◽  
H. H. Barrett ◽  
T. S. Hickernell ◽  
...  
Keyword(s):  
Gamma Radiation ◽  
Radiation Detectors ◽  
Tumor Detection
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