A Method for Calculating Scatter Dose of Irregular Fields
- VernacularTitle:一种计算不规则野的散射剂量的方法研究
- Author:
Haoyu JIN
;
Qingwen LV
;
Chaomin CHEN
;
Linghong ZHOU
;
Guangjie CHEN
- Publication Type:Journal Article
- Keywords:
scatter dose;
irregular fields;
radiotherapy;
dose calculation;
equivalent squares
- From:
Journal of Practical Radiology
2001;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To find a method for calculating the scatter dose of irregular fields. Methods The original Day function was improved to vary with radiation depth, and the improved Day function was used for irregular fields to calculate scatter dose. Results The accuracy was greatly improved by making Day function depend on radiation depth, and the error was within 1.5%. Conclusion This method can be used to calculate the scatter dose of irregular fields as well as rectangular fields.
