A field determination method of D-T neutron source yields based on oxygen prompt gamma rays
2
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
A field determination method for small D-T neutron source yield based on the oxygen prompt gamma rays was established. A neutron-gamma transport equation of the determination device was developed. Two yield field determination devices with a thickness of 20 mm and 50 mm were made. The count rates of the oxygen prompt gamma rays were calculated using three energy spectra processing approaches, which were the characteristic peak of 6.13 MeV, the overlapping peak of 6.92 MeV and 7.12 MeV, and the total energy area. The R-square of the calibration curve is better than 94% and the maximum error of the yield test is 5.21%, demonstrating that it is feasible to measure the yield of D-T neutron source by oxygen prompt gamma rays. Additionally，the results meet the requirements for field determination of the conventional D-T neutron source yield.
Abstract
A field determination method for small D-T neutron source yield based on the oxygen prompt gamma rays was established. A neutron-gamma transport equation of the determination device was developed. Two yield field determination devices with a thickness of 20 mm and 50 mm were made. The count rates of the oxygen prompt gamma rays were calculated using three energy spectra processing approaches, which were the characteristic peak of 6.13 MeV, the overlapping peak of 6.92 MeV and 7.12 MeV, and the total energy area. The R-square of the calibration curve is better than 94% and the maximum error of the yield test is 5.21%, demonstrating that it is feasible to measure the yield of D-T neutron source by oxygen prompt gamma rays. Additionally，the results meet the requirements for field determination of the conventional D-T neutron source yield.
참고문헌 (22)
- Feng Zhang, "Summary of development for pulsed neutron well logging technology in our country", Chin. J. Atomic Energy Sci. Technol, (S1), pp.116~123 (2009)
- J. Batur, "Temporal and spatial resolution of the neutron probe for C", O nuclear well logging, 2022, 110215~
- Jilin Fan, "A method of monitoring gas saturation in carbon dioxide injection heavy oil reservoirs by pulsed neutron logging technology", Petrol. Explor. Dev, 48(6), pp.1420~1142 (2021)
- L. Jacobson, "A new small diameter high-performance reservoir monitoring tool", The SPWLA 39th Annual Logging Symposium (1998)
- Qian Chen, "Quantitatively determining gas content using pulsed neutron logging technique in closed gas reservoir", J. Petrol. Sci. Eng, 198, pp.108149~ (2021)
- Zhang Yusheng, "New well logging technology of determining reservoir saturation:PNN logging tool and its application", Chinese Journal of Petroleum Instruments, 19(3), pp.27~28 (2005)
- D. R. Humphreys, "Uranium logging with prompt fission neutrons", Appl. Radiat. Isot, 34(1), pp.261~268 (1983)
- (2006)[URL]
- Xugang Liu, "A new generation of elemental capture spectroscopy logging", Chinese Journal of Isotope, 15(Z1), pp.8~13 (2002)
- Yuan Zu-Gui, "ECS-new well-logging technique for completely evaluating the reservoir", Chinese Journal Atomic Energy Science and Technology, (S1), pp.208~213 (2004)
- D. Partington, "Determination of the energy dependence of the 63Cu (n,2n)62Cu and 27Al (n,p)27Mg cross-sections, and their application to the measurement of 14-MeV neutron fluxes", Analyst, 95, pp.257~259 (1970)
- J. C. Robertson, "On measuring the absolute yield of 14 MeV neutrons by associated particle counting", Nucl. Instrum. Methods, 11, pp.179~180 (1966)
- Shifeng Sun, "Study on angular resolution of associated particle fast neutron imaging system", Atomic Energy Sci. Technol, (5), pp.850~856 (2020)
- Vladimir Khripunov, "Oxides for DeT neutron yield measurements by activation techniques on fusion devices", Fusion Eng. Des, 88, pp.1187~1191 (2013)
- Y. Uno, "Absolute measurement of D-T neutron flux with a monitor using activation of flowing water", Fusion Eng. Des, 56-57, pp.895~898 (2001)
- Ming Lei, "Measurement of HFETR reactor power by improved 16N gamma spectrum analysis method", Ann. Nucl. Energy, 164, pp.108604~ (2021)
- Qing Shan, "A neutron monitor for D-T neutron generator in the PGNAA-based online measurement system", Radiat. Phys. Chem, 135, pp.142~145 (2017)
- JiaTong Li, "Research on the optimization method for PGNAA system design based on Signal-to-Noise Ratio evaluation", Nuclear Engineering and Technology, 54(6), pp.2221~2229 (2022), 한국원자력학회[DOI]
- Boromiza Marian, "High precision neutron inelastic cross sections on<sup>16<", sup>O, 2020, pp.239, 01013~[DOI]
- D. R. Tilley, "Energy levels of light nuclei A = 16-17", Nucl. Phys, 565, pp.1~184 (1993)
- Xiting Lu, "Nuclear Physics" (2000), Atomic Energy Press
- Juan Zhai, "Study of spectrum drifting correction method based on whole spectrum characteristic", Nucl. Electron. Detect. Technol, 37, pp.81~94 (2017)