GAMOS/GEANT4 simulation and comparison study of X-ray narrow-spectrum series at the national Secondary Standard Dosimetry Laboratory of Morocco

被引：2

作者：

Al-Tuweity, Jawaher ^{[1
]}

Sadiq, Younes ^{[1
,2
]}

Mouktafi, Amine ^{[1
]}

Arce, Pedro ^{[3
]}

Fathi, Imane ^{[4
]}

Mohammed, Maged ^{[1
]}

Azougagh, Mohamed ^{[5
]}

Alibrahmi, El Mehdi ^{[1
]}

Boukhal, Hamid ^{[6
]}

Chakir, El Mahjoub ^{[1
]}

机构：

[1] Univ Ibn Tofail, Fac Sci, LPMS, Kenitra, Morocco

[2] Minist Hlth, Natl Ctr Radiat Protect CNRP, SSDL, Sale, Morocco

[3] CIEMAT, Div Sci Instrumentat, Dept Technol, Med Applicat Unit, Madrid, Spain

[4] Univ Hassan 1, Higher Inst Hlth Sci, Lab Sci & Hlth Technol, Settat, Morocco

[5] Univ Mohammed 5, ENSET, Rabat, Morocco

[6] Univ Abdelmalek Saadi, Fac Sci, Tetouan, Morocco

来源：

APPLIED RADIATION AND ISOTOPES | 2021年 / 175卷

关键词：

SSDL; Half-Value Layer HVL; Narrow-series NS; Radiation quality; GAMOS/GEANT4;

D O I：

10.1016/j.apradiso.2021.109789

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This study aimed to simulate the X-ray Irradiator narrow-spectrum series and compare the results with experimental and recommended values in ISO standards. X-Ray beam qualities of N-40 to N-300 were established experimentally at the national Secondary Standard Dosimetry Laboratory (SSDL) of Morocco in purpose of calibrating radiation protection-level. The variations between the first half-value layer (1st HVL) and the second (2nd HVL) for experimental were within 5%. Also, homogeneity coefficients h were mostly between 0.75 and 1 according to ISO. GAMOS Monte Carlo code was used to simulate the radiation quality of narrow-spectrum series between N-40 to N-150. All 1st HVL, 2nd HVL, and h simulation values were compare with experimental and ISO values. In MC codes and GAMOS, there is no direct way to generate the X-ray spectrum if we do not have details of the X-ray tube geometry, dimensions and materials. Therefore, Institute of Physics and Engineering in Medicine report number 78 was used to generate the X-ray spectrums in purpose to test this method accuracy. The simulation results for the 1st HVL and 2nd HVL showed a good agreement with experimental data and with ISO 4037-1:1996 given values. Also, the comparison results showed that most of the homogeneity coefficients are within the ISO standard range.

引用

页数：4