A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry
In this article, we present a novel method to calculate the number buildup factor for arbitrary materials in gamma-ray transmission measurements using a narrow beam geometry. The MCNP6 code was used to simulate photon transport within a collimated transmission configuration, which included...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
VINCA Institute of Nuclear Sciences
2024-01-01
|
| Series: | Nuclear Technology and Radiation Protection |
| Subjects: | |
| Online Access: | https://doiserbia.nb.rs/img/doi/1451-3994/2024/1451-39942403185C.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832581968180543488 |
|---|---|
| author | Chuong Huynh Dinh Trang Le Thi Ngoc Linh Nguyen Thi Truc Nguyen Vo Hoang Thanh Tran Thien |
| author_facet | Chuong Huynh Dinh Trang Le Thi Ngoc Linh Nguyen Thi Truc Nguyen Vo Hoang Thanh Tran Thien |
| author_sort | Chuong Huynh Dinh |
| collection | DOAJ |
| description | In this article, we present a novel method to calculate the number buildup
factor for arbitrary materials in gamma-ray transmission measurements using
a narrow beam geometry. The MCNP6 code was used to simulate photon transport
within a collimated transmission configuration, which included a NaI(Tl)
scintillation detector paired with a 137Cs or 60Co radioactive source.
From these simulations, the number buildup factor values were computed for
various materials at gamma-ray energies of 661.7 keV, 1173.2 keV, and 1332.5
keV, with sample thicknesses ranging from 0.1-7.0 cm. At each specific
gamma-ray energy and material, the number buildup factor values exhibited a
strong linear relationship with the sample thickness. Furthermore, the slope
of these linear relationships can be expressed as a product of mass density and a cubic polynomial function of the atomic number. Based on these
findings, we developed a fitting formula to calculate the number buildup
factor using the input variables of sample thickness, mass density, and
atomic number. The accuracy of the fitting formula was evaluated by
comparing its results with number buildup factor values computed by MCNP6
code. The comparison showed relative deviations below 1 % for all the
investigated cases, demonstrating the high accuracy and reliability of the
fitting formula. |
| format | Article |
| id | doaj-art-862114c2a14048d3aef94bb483b19b31 |
| institution | Kabale University |
| issn | 1451-3994 1452-8185 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | VINCA Institute of Nuclear Sciences |
| record_format | Article |
| series | Nuclear Technology and Radiation Protection |
| spelling | doaj-art-862114c2a14048d3aef94bb483b19b312025-01-30T06:46:08ZengVINCA Institute of Nuclear SciencesNuclear Technology and Radiation Protection1451-39941452-81852024-01-0139318519810.2298/NTRP2403185C1451-39942403185CA novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometryChuong Huynh Dinh0https://orcid.org/0000-0003-3903-6388Trang Le Thi Ngoc1https://orcid.org/0000-0002-9354-022XLinh Nguyen Thi Truc2https://orcid.org/0000-0002-7706-8391Nguyen Vo Hoang3https://orcid.org/0009-0007-2828-6142Thanh Tran Thien4https://orcid.org/0000-0002-9866-4926Nuclear Technique Laboratory, University of Science, Ho Chi Minh City, Vietnam + Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, Vietnam + Vietnam National University, Ho Chi Minh City, VietnamNuclear Technique Laboratory, University of Science, Ho Chi Minh City, Vietnam + Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, Vietnam + Vietnam National University, Ho Chi Minh City, VietnamNuclear Technique Laboratory, University of Science, Ho Chi Minh City, Vietnam + Faculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, Vietnam + Vietnam National University, Ho Chi Minh City, VietnamFaculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, Vietnam + Vietnam National University, Ho Chi Minh City, VietnamFaculty of Physics and Engineering Physics, University of Science, Ho Chi Minh City, Vietnam + Vietnam National University, Ho Chi Minh City, VietnamIn this article, we present a novel method to calculate the number buildup factor for arbitrary materials in gamma-ray transmission measurements using a narrow beam geometry. The MCNP6 code was used to simulate photon transport within a collimated transmission configuration, which included a NaI(Tl) scintillation detector paired with a 137Cs or 60Co radioactive source. From these simulations, the number buildup factor values were computed for various materials at gamma-ray energies of 661.7 keV, 1173.2 keV, and 1332.5 keV, with sample thicknesses ranging from 0.1-7.0 cm. At each specific gamma-ray energy and material, the number buildup factor values exhibited a strong linear relationship with the sample thickness. Furthermore, the slope of these linear relationships can be expressed as a product of mass density and a cubic polynomial function of the atomic number. Based on these findings, we developed a fitting formula to calculate the number buildup factor using the input variables of sample thickness, mass density, and atomic number. The accuracy of the fitting formula was evaluated by comparing its results with number buildup factor values computed by MCNP6 code. The comparison showed relative deviations below 1 % for all the investigated cases, demonstrating the high accuracy and reliability of the fitting formula.https://doiserbia.nb.rs/img/doi/1451-3994/2024/1451-39942403185C.pdfgamma-ray transmissionmonte carlo simulationmcnp6nai(tl) detectornarrow beam geometrynumber buildup factor |
| spellingShingle | Chuong Huynh Dinh Trang Le Thi Ngoc Linh Nguyen Thi Truc Nguyen Vo Hoang Thanh Tran Thien A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry Nuclear Technology and Radiation Protection gamma-ray transmission monte carlo simulation mcnp6 nai(tl) detector narrow beam geometry number buildup factor |
| title | A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry |
| title_full | A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry |
| title_fullStr | A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry |
| title_full_unstemmed | A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry |
| title_short | A novel method for calculating number buildup factor in gamma-ray transmission measurements using narrow beam geometry |
| title_sort | novel method for calculating number buildup factor in gamma ray transmission measurements using narrow beam geometry |
| topic | gamma-ray transmission monte carlo simulation mcnp6 nai(tl) detector narrow beam geometry number buildup factor |
| url | https://doiserbia.nb.rs/img/doi/1451-3994/2024/1451-39942403185C.pdf |
| work_keys_str_mv | AT chuonghuynhdinh anovelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT tranglethingoc anovelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT linhnguyenthitruc anovelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT nguyenvohoang anovelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT thanhtranthien anovelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT chuonghuynhdinh novelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT tranglethingoc novelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT linhnguyenthitruc novelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT nguyenvohoang novelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry AT thanhtranthien novelmethodforcalculatingnumberbuildupfactoringammaraytransmissionmeasurementsusingnarrowbeamgeometry |