Jung Jae Won, Reece Warren Daniel
Department of Nuclear Engineering, Texas A&M University, College Station, TX 77843-3133, USA.
Appl Radiat Isot. 2008 Apr;66(4):441-9. doi: 10.1016/j.apradiso.2007.11.008. Epub 2007 Nov 23.
A glass bead consisted of the beta(-)-emitting (142)Pr is proposed for brachytherapy treatment of prostate cancer. Appropriate radionuclide and seed dimensions were selected and sample seeds were manufactured. For the quantitative dosimetric parameters, two-dimensional dose distributions were calculated using the MCNP5 Monte Carlo code and measured using radiochromic film. The computational results compared well with measurements. Dose at 0.6 cm from the seed center can exceed 130 Gy. The reference dose rate, radial dose function and the anisotropy function were derived.
一种由发射β(-)射线的(142)Pr组成的玻璃微珠被提议用于前列腺癌的近距离治疗。选择了合适的放射性核素和种子尺寸，并制造了样品种子。对于定量剂量学参数，使用MCNP5蒙特卡罗代码计算二维剂量分布，并使用放射变色胶片进行测量。计算结果与测量结果比较吻合。距种子中心0.6 cm处的剂量可超过130 Gy。得出了参考剂量率、径向剂量函数和各向异性函数。
