High Power Laser and Particle Beams, Volume. 34, Issue 2, 026007(2022)
Development and application of simulation code for radiation detection based on MCPT solver library
The relationship between 131I activity in the thyroid and radiation detection results is related to the thyroid geometry, detection distance and other factors, which is a key parameter for estimating the 131I content in the thyroid and its possible irradiation damage. We developed an application for gamma radiation measurement simulation of NaI detectors based on the MCPT radiation transport numerical simulation algorithm library. Then several physical models with different volumes of thyroid containers and different detection distances were established. Finally, the detection efficiency of detectors were obtained under different measurement states by Monte Carlo numerical calculations. The results of the numerical simulation are consistent with that of the theoretical calculation when the distance between the thyroid-like container and the detector is large, which proves that the application could be used to quantitatively analyze the detection efficiency of NaI detectors. It is indicated that the detection efficiency for the detector with small distances is significantly influenced by the size of the thyroid-like container and the distance. The detection efficiency table given by the simulations provides a basis for an in-depth experimental study.
Get Citation
Copy Citation Text
Jianyu Zhu, Meng Huang, Xuan Peng, Fei Tuo, Gang Li. Development and application of simulation code for radiation detection based on MCPT solver library[J]. High Power Laser and Particle Beams, 2022, 34(2): 026007
Category: Monte Carlo Methods and Applications
Received: Jul. 28, 2021
Accepted: --
Published Online: Jan. 26, 2022
The Author Email: Huang Meng (hm.max@126.com)