試題詳解

57.下列何種劑量計，最適合用於量測立體定位放射治療使用的 12.5 mm照野的劑量分布？
(A)Diamond detector [ 0.001 mm (厚) × 2.2 mm (直徑)]
(B)Farmer chamber [ 23 mm (長) × 6.1 mm (直徑)]
(C)Pinpoint chamber [ 5 mm (長) × 2 mm (直徑)]
(D)Semiflex chamber [ 6.5 mm (長) × 5.5 mm (直徑)]