# Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2019, Vol. 30 ›› Issue (2): 32

• NUCLEAR ENERGY SCIENCE AND ENGINEERING •

### Simulation study of the dose and energy responses of FNTD personal neutron dosimetry

Yi-Hang Wang1 • Qiang Li2 • Li Chen2 • Yong-Gang Yuan1 • Tai-Ping Peng1

1. 1 Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang 621903, China
2 China Institution for Radiation Protection, Taiyuan 030006, China
• Received:2018-02-08 Revised:2018-05-25 Accepted:2018-06-30
• Contact: Yi-Hang Wang E-mail:lulifree@163.com
• Supported by:
This work was funded by the International Fusion Reactor Experiment Program (No. 2014GB112004).
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Yi-Hang Wang, Qiang Li, Li Chen, Yong-Gang Yuan, Tai-Ping Peng. Simulation study of the dose and energy responses of FNTD personal neutron dosimetry.Nuclear Science and Techniques, 2019, 30(2): 32
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Abstract: The objective of this work was to use the Geant4 toolkit to perform simulation studies on the personal dose response of fluorescent nuclear track detectors (FNTDs). The entire structure of the FNTD response can be designed, and the detector’s energy and dose responses can be optimized in a broad energy range (0.01 eV–20 MeV). In general, the detectors used 6LiF and CH2 converters that have high energy and high dose response at neutron energies lower than 10 eV and greater than 1 MeV, respectively. The method of least squares was used to optimize the dose response of H*(10) and the energy response corresponding to Rtotal. The values of the optimized response of H*(10) lie between 0.8 and 1.4, corresponding to the energy ranges 0.01 eV–70 keV and 4–14 MeV, respectively. This occupies nearly eight out of the nine orders of the total energy range. Even though the optimized response of Rtotal is constrained between 0.89 and 1.1 in the energy range of 0.01 eV–20 MeV, it is suitable for obtaining the broad neutron spectrum of fluence with good accuracy.