Conclusions: the beam Angle and the number of beams have influence upon dose distribution, the dose distribution would be improved for large volume target with the increment of beam number.
结论:照射野方向和照射野的数目对剂量分布有影响,增加照射野的数目可以改善体积较大的病灶的剂量分布。
2
Based on the analysis of the general expression of coning compensation algorithms, a method which USES Angle rate to fit the Angleincrement was put forward and verified.
在分析圆锥误差补偿通式的基础上,提出了利用角速率求取角增量的拟合算法,并给出了该算法的数学证明。
3
Each input of a pulse motor shaft of a step Angle stepping increment.