Study and measurement of the water absorbed dose in 10-50 kV X-ray

Zhenjie ZHOU; Shiwei REN; Jinjie WU; Ying LIU; Jili Yu; Rui ZHAO; Jiajia KANG; Yang YANG

doi:10.11889/j.0253-3219.2016.hjs.39.120201

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Study and measurement of the water absorbed dose in 10-50 kV X-ray

LOW ENERGY ACCELERATOR, RAY AND APPLICATIONS | 更新时间：2021-05-24

- Study and measurement of the water absorbed dose in 10-50 kV X-ray
- NUCLEAR TECHNIQUES Vol. 39, Issue 12, Article number: 120201(2016)
- 作者机构：
  
  1.河北科技大学石家庄 050018
  2.中国计量科学研究院北京 100029
  3.南华大学衡阳 421001
  4.成都理工大学成都 610059
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;Research and Development Project of National Scientific Research Institute
- DOI：10.11889/j.0253-3219.2016.hjs.39.120201
  CLC： TL99
- Received：07 March 2016，
  
  Revised：15 October 2016，
  
  Published：2016-12
- 稿件说明：
移动端阅览
Zhenjie ZHOU, Shiwei REN, Jinjie WU, et al. Study and measurement of the water absorbed dose in 10-50 kV X-ray[J]. Nuclear techniques, 2016, 39(12): 120201
DOI：

Zhenjie ZHOU, Shiwei REN, Jinjie WU, et al. Study and measurement of the water absorbed dose in 10-50 kV X-ray[J]. Nuclear techniques, 2016, 39(12): 120201 DOI： 10.11889/j.0253-3219.2016.hjs.39.120201.

摘要

X射线水吸收剂量是辐射剂量学的重要物理量，它的精确测量在放射治疗中至关重要。开展低能X射线水吸收剂量的研究与测量，可为完善水吸收剂量溯源体系及扩宽计量部门校准范围提供重要技术支持。确定低能X射线水吸收剂量的测量方法，在辐射场中使用PTW23344电离室对10-50 kV的治疗水平辐射质下的X射线水吸收剂量进行了测量。最终得到了电离室的水吸收剂量刻度因子

以及厚度为6 cm有机玻璃前表面的水吸收剂量

。本项工作为建立国内X射线水吸收剂量标准及进行国际比对提供了条件和基础。

Abstract

Background:

The water absorbed dose in X-ray is an important physical quantity of radiation dosimetry

whose accurate measurement is important in radiation therapy.

Purpose:

The research and measurement of water absorbed dose in low-energy X-ray can provide great technical support for improving the traceability system of water absorption dose and widening the calibration range of measurement department.

Methods:

The water absorbed dose in 10-50 kV X-ray was measured using PTW23344 ionization chamber in radiation field.

Results:

Finally

the water absorbed dose scale factor of the PTW23344 ionization chamber and water absorbed dose at the front surface of the 6-cm organic glass were obtained.

Conclusion:

This work provides the foundation for establishment of domestic X-ray water absorbed dose standard and its international comparison.

关键词

Keywords

references

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