Determination of dosimetric characteristics for the model number 6711 <sup>125</sup>I seed source with the point-kernel method

Beidi MENG; Zhen CAO; Cuiyan SHI; Haiping CUI

doi:10.11889/j.0253-3219.2017.hjs.40.070501

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Determination of dosimetric characteristics for the model number 6711 ¹²⁵I seed source with the point-kernel method

NUCLEAR PHYSICS, INTERDISCIPLINARY RESEARCH | 更新时间：2021-05-19

- Determination of dosimetric characteristics for the model number 6711 ¹²⁵I seed source with the point-kernel method
- NUCLEAR TECHNIQUES Vol. 40, Issue 7, Article number: 070501(2017)
- 作者机构：
  
  1.中国原子能科学研究院北京 102413
  2.原子高科股份有限公司北京 102413
  3.同方威视技术股份有限公司北京 100084
  4.清华大学工程物理系北京 100084
- 作者简介：
- 基金信息：
- DOI：10.11889/j.0253-3219.2017.hjs.40.070501
  CLC： TL929
- Received：20 February 2017，
  
  Revised：28 March 2017，
  
  Published：10 July 2017
- 稿件说明：
移动端阅览
Beidi MENG, Zhen CAO, Cuiyan SHI, et al. Determination of dosimetric characteristics for the model number 6711 ¹²⁵I seed source with the point-kernel method[J]. Nuclear techniques, 2017, 40(7): 070501
DOI：

Beidi MENG, Zhen CAO, Cuiyan SHI, et al. Determination of dosimetric characteristics for the model number 6711 ¹²⁵I seed source with the point-kernel method[J]. Nuclear techniques, 2017, 40(7): 070501 DOI： 10.11889/j.0253-3219.2017.hjs.40.070501.

摘要

使用点核积分方法计算6711型

125

I籽粒源参数，根据美国医学物理学家协会（American Association of Physicists in Medicine

AAPM）TG-43U1号报告推荐的剂量参数计算公式，可以获得6711型

125

I籽粒源各参数。与AAPM TG-43U1推荐值比较，剂量常数相差6.76%，径向剂量函数值（不包括0.1 cm、0.15 cm、0.25 cm）最大相差2.27%，最小相差0.02%；与MCNP5（A General N-Particle Transport Code

Version 5）方法计算结果比较，剂量常数相差6.19%，径向剂量函数值（不包括0.1 cm、0.15 cm、0.25 cm）最大相差6.65%，最小相差0.06%。结果与推荐值符合较好，证明点核积分能够应用于籽粒源剂量参数计算。

Abstract

Background

The

125

I brachytherapy source has become a popular treatment option in the treatment various tumors

in order to reduce the risk of surrounding normal tissue

it is important to know the dosimetric characteristics of seed source.

Purpose

The aim is to develop a reliable and saving time method for calculating the dosimetric parameters of seed source.

Methods

Dosimetric parameters (dose rate constant

radial dose function and anisotropy function) of the model number 6711

125

I seed source are calculated with point-kernel method following American association of physicists in medicine (AAPM) TG-43U1 recommendations.

Results

The result was compared with the relative data recommended by AAPM TG-43U1 and Monte-Carlo (M-C) method. Dose rate constant with AAPM was in agreement with 6.76%

and that with M-C is 6.19%; radial dose function (except 0.1 cm

0.15 cm and 0.25 cm) with AAPM is within 0.02%-2.27%

and that with M-C is within 0.06%-6.65%.

Conclusion

The point-kernel method can be applicable to calculate the dosimetric characteristics of seed sources.

关键词

Keywords

references

曹振 , 阮锡超 , 孟贝蒂 , . MCNP5与EGSnrc比较计算 125 I种子源剂量参数 . 核技术 , 2014 . 37 ( 2 ): 020201 DOI: 10.11889/j.0253-3219.2014.hjs.37.020201 http://doi.org/10.11889/j.0253-3219.2014.hjs.37.020201 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract150.shtml .

Zhen CAO , Xichao RUAN , Beidi MENG , . Determination of dosimetric parameters for 125 I seed source using MCNP5 and EGSnrc MC codes . Nuclear Techniques , 2014 . 37 ( 2 ): 020201 DOI: 10.11889/j.0253-3219.2014.hjs.37.020201 http://doi.org/10.11889/j.0253-3219.2014.hjs.37.020201 http://www.j.sinap.ac.cn/hejishu/CN/abstract/abstract150.shtml .

A E Babaheidari , M Shamsaee , P Ahmadi . Determination of dosimetric characteristics of a new design 125 I brachytherapy source with the Monte Carlo code MCNPX . Radiochemistry , 2014 . 56 ( 3 ): 296 - 301 . DOI: 10.1134/S1066362214030126 http://doi.org/10.1134/S1066362214030126 .

SCALE: a comprehensive modeling and simulation suite for nuclear safety analysis and design (Version 6.1)[R]. ORNL/TM-2005/39, Radiation Safety Information Computational Center, Oak Ridge National Laboratory, 2011.

R Nath , L L Anderson , G Luxton , . Dosimetry of interstitial brachytherapy sources: recommendations of the AAPM radiation therapy committee task group No.43 . Medical Physics , 1995 . 22 ( 2 ): 209 - 234 . DOI: 10.1118/1.597458 http://doi.org/10.1118/1.597458 .

M J Rivard , B M Coursey , L A DeWerd , . Update of AAPM task group No.43 report: a revised AAPM protocol for brachytherapy dose calculations . Medical Physics , 2004 . 31 ( 3 ): 633 - 674 . DOI: 10.1118/1.1646040 http://doi.org/10.1118/1.1646040 .

Hubbell J H, Seltzer S M. Tables of X-ray mass attenuation coefficients and mass energy-absorption coefficients 1 keV to 20 MeV for elements Z=1 to 92 and 48 additional substances of dosimetric interest[R]. Gaithersburg, MD, United States: National Institute of Standards and Technology-PL, Ionizing Radiation Division, 1995.

曹振 , 李飒 , 张文在 , . 6711型 125 I种子源剂量参数的蒙特卡罗研究 . 核技术 , 2012 . 35 ( 5 ): 361 - 364 .

Zhen CAO , Sa LI , Wenzai ZHANG , . M-C simulation of dosimetric characteristics of model 6711 125 I seed source . Nuclear Techniques , 2012 . 35 ( 5 ): 361 - 364 .

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Determination of dosimetric characteristics for the model number 6711 125I seed source with the point-kernel method

DOI：10.11889/j.0253-3219.2017.hjs.40.070501

摘要

Abstract

关键词

Keywords

references

Determination of dosimetric characteristics for the model number 6711 ¹²⁵I seed source with the point-kernel method