CALCULATION OF THE EFFECT OF BETA BEAMS, BREMSSTRAHLUNG X-RAY, AND THE USE OF 10B PARTICLES ON INCREASING DOSE EQUIVALENT TO 252CF BRACHYTHERAPY SOURCE

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AHMADI OME LEILA; TAVAKOLI ANBARAN HOSSEIN

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Journal: Studies in Medical Sciences Year:2022 | Volume:33 | Issue:6 Page(s): 441-450

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Information Journal Paper

Title

CALCULATION OF THE EFFECT OF BETA BEAMS, BREMSSTRAHLUNG X-RAY, AND THE USE OF 10B PARTICLES ON INCREASING DOSE EQUIVALENT TO 252CF BRACHYTHERAPY SOURCE

Author(s)

AHMADI OME LEILA | TAVAKOLI ANBARAN HOSSEIN | Issue Writer Certificate

Keywords

Beta Beam

10B Particles

Bremsstrahlung X-Ray

252Cf Brachytherapy Source

Equivalent Dose

Abstract

Background & Aims: 252Cf is a source of emission of neutron, gamma rays, and beta and alpha particles. In the common models of this source used in brachytherapy, only neutrons and gamma rays contribute in the dosimetry around the source. In this study, while investigating the escape of beta rays and Bremsstrahlung X-Rays from the source capsule of brachytherapy 252Cf of Isotron model, the dosimetry of the total effective radiation in the water environment around the source was performed and the total Equivalent Dose increase was calculated using 10B Particles. Materials & Methods: Dosimetry for the neutron rays, the primary gammas, the secondary gammas, the beta particles, and the Bremsstrahlung X-Rays in the spherical water phantom performed with the radius of 20 cm at the distances of 0. 5 to 6 cm from the source using the Monte Carlo MCNPX. 2. 6. 0 code. Dose increment factor was calculated using B10 particles with a concentration of 50 ppm. Results: The highest relative difference in dose values, taking into account the X-ray and the beta particles their absence at the distance of 0. 5 cm from the source, was %19. As the distance from the source increases, the effect of these rays on the total Equivalent Dose rate decrease, as in the distance of 2. 5 cm distance, its values reach less than % 0. 5. The boron effect on the total Equivalent Dose increases by distance from the source, as at the 0. 5 to 6 cm distances from the source will increase from %0. 01 to more than % 22. Conclusion: According to the findings of this study, the dose of the X-rays and the beta particles passing through the source capsule are effective in the dosimetry around the source, and increasing the dose by 10B depends on increasing the tumor source distance, which should be considered in clinical applications.

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APA: Copy

AHMADI, OME LEILA, & TAVAKOLI ANBARAN, HOSSEIN. (2022). CALCULATION OF THE EFFECT OF BETA BEAMS, BREMSSTRAHLUNG X-RAY, AND THE USE OF 10B PARTICLES ON INCREASING DOSE EQUIVALENT TO 252CF BRACHYTHERAPY SOURCE. STUDIES IN MEDICAL SCIENCE (THE JOURNAL OF URMIA UNIVERSITY OF MEDICAL SCINCES), 33(6), 441-450. SID. https://sid.ir/paper/1081464/en

Vancouver: Copy

AHMADI OME LEILA, TAVAKOLI ANBARAN HOSSEIN. CALCULATION OF THE EFFECT OF BETA BEAMS, BREMSSTRAHLUNG X-RAY, AND THE USE OF 10B PARTICLES ON INCREASING DOSE EQUIVALENT TO 252CF BRACHYTHERAPY SOURCE. STUDIES IN MEDICAL SCIENCE (THE JOURNAL OF URMIA UNIVERSITY OF MEDICAL SCINCES)[Internet]. 2022;33(6):441-450. Available from: https://sid.ir/paper/1081464/en

IEEE: Copy

OME LEILA AHMADI, and HOSSEIN TAVAKOLI ANBARAN, “CALCULATION OF THE EFFECT OF BETA BEAMS, BREMSSTRAHLUNG X-RAY, AND THE USE OF 10B PARTICLES ON INCREASING DOSE EQUIVALENT TO 252CF BRACHYTHERAPY SOURCE,” STUDIES IN MEDICAL SCIENCE (THE JOURNAL OF URMIA UNIVERSITY OF MEDICAL SCINCES), vol. 33, no. 6, pp. 441–450, 2022, [Online]. Available: https://sid.ir/paper/1081464/en

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