透視可能なX線装置の焦点皮膚間距離と被ばく線量

概要

論文の詳細を見る
The international Electrotechnical Commission, IEC provided in its standard IEC60601-1-3(1994)to prevent the use during radioscopic irradiation of focal spot to skin distances lessthan -20cm if the X-RAY EQUIPMENT is specified for RADIOSCOPY during surgery or -30cm for other specified applications. This standard was reflected in the Japanese Industrial Standard JIS Z4701-1997, which provided the minimum distance from focal spot to skin to be 30cm for the use of a fluoroscopic and radiographic table(Under-table type). However, JIS had formerly provided the minimum distance to be 40cm and so does the current Medical Treatment Law. The draft revision for the Medical Treatment Law currently discussed has consideration to adopt the value 30cm in accordance with the current JIS. Our research intended to investigate the impact on the entrance surface dose for the change of the focal spot to skin distance from 40cm to 30cm.
日本医療機器学会の論文
2000-05-01