Houdek P V, VanBuren J M, Fayos J V
Med Phys. 1983 May-Jun;10(3):333-6. doi: 10.1118/1.595262.
Dosimetry for 10-MV x rays has been extended to radiation fields smaller than 4 X 4 cm which may be suitable for radiation therapy of small lesions, e.g., intracranial tumors, benign or malignant. Special consideration in this study was given to (i) the variation of dose with field size (collimator and phantom scatter), (ii) the central axis percentage depth doses, and (iii) the moving-beam therapy dose distribution. We conclude that simple dosimetric techniques can provide adequate physics background for stereotaxic radiosurgery with small radiation fields and high-energy x rays.
10兆伏X射线的剂量测定已扩展到小于4×4平方厘米的辐射野，这可能适用于小病灶的放射治疗，如颅内肿瘤，良性或恶性肿瘤。本研究特别考虑了：（i）剂量随射野大小的变化（准直器和模体散射），（ii）中心轴百分深度剂量，以及（iii）移动束治疗剂量分布。我们得出结论，简单的剂量测定技术可为小辐射野和高能X射线的立体定向放射外科提供足够的物理背景。
