文章基本信息

标题：Study of Workplace Radiation Dose Rate during the Brain Scanning Procedures
本地全文：下载
作者：MM Ahasan ; SM Badruddoza ; AK Paul 等
期刊名称：TAJ: Journal of Teachers Association
印刷版ISSN：1019-8555
出版年度：2004
卷号：17
期号：1
页码：27-30
DOI：10.3329/taj.v17i1.3486
语种：English
出版社：Teachers Association of Rajshahi Medical College
摘要：Radiation dose rate in the gamma camera workplace were measured during brain scanning procedures using a dose of 15-20 mCi 99m Tc-pertechnetate ( 99m TcO 4 - ) given intravenously to each patient. The study based on randomly selected 20 patients duly registered for brain scan at Centre for Nuclear Medicine & Ultrasound (CNMU), Rajshahi. Radiation dose rate at the patienthandling place and computer-operating place were measured by a high sensitive portable dose ratemeter and a NaI detector. Brain imaging procedures were usually done two hours post injection. Radiation dose rate at the patient-handling place found to be 20±4μSvhr -1 and the computer-operating place were 2±0.4μSvhr -1 . Patient skull surface doses were measured also and found to be 120±24μSvhr -1 (one hour post injection) and 80±13μSvhr -1 (two hours post injection). The results showed that the radiation dose rate in the gamma camera workplace during brain scanning procedures found to be nearly 6 to 60 times higher than the background level. The research goals of the study were to measure the workplace radiation level during brain scanning procedures and sketched some special remedial measures to reduce the radiation exposure rate in the gamma camera work environment. doi: 10.3329/taj.v17i1.3486 TAJ 2004; 17(1) : 27-30
关键词：radiation dose