Effective Dose Estimation of a Person Contacting with a Radioactive Patient:A Method Based on the Exposure Rate Measurements around the <SUP>123</SUP>I-IMP Patients
スポンサーリンク
概要
- 論文の詳細を見る
In order to estimate the effective dose (<I>E</I>) of a person who may come into close contact to the <I>123</I>I-IMP patients, exposure rates around 30 adult patients (male: 15, female: 15) were measured with three ionization survey meters (Aloka, ICS-301) at distances of 0.05, 0.5, 1.0 and 1.5m from the patients. Measurements were carried out in 1, 3, 6 and 24h after the administrations of <SUP>123</SUP>I-IMP. Survey meters were set up to the first cervical vertebrae (Level I), xiphoid process (Level II) and anterior superior iliac spine (Level III) of the patients who were standing erect. The maximum dose equivalent (<I>H</I><SUB>1</SUB>cm) rate of107.9μSv/h per 222MBq was recorded in the level II at 0.05m from the patients. Effective half life of <SUP>123</SUP>I-IMP was 11.0h.<BR>The E around the <SUP>123</SUP>I-IMP patient increases in time approaching to a saturated value, which is defined as total <I>E</I>. The tota1 <I>E</I> was calculated from initial <I>H</I><SUB>1</SUB>cm rates and the effective half life; estimated values/222MBq are 949μSv at 0.05m, 195μSv at 0.5m, 76μSv at 1.0m and41μSv at 1.5m.
- 日本放射線安全管理学会の論文
日本放射線安全管理学会 | 論文
- イメージングプレートに記録されたPSL強度分布の解析
- イメージングプレートにおけるPSL強度分布に着目した線種識別法の提案
- 線量当量(Dose Equivalent)と等価線量(Equivalent Dose)
- 広帯域エネルギー対応マルチ放射線モニタDARWINの開発 (第4回JPSMシンポジウム) -- (先端放射線計測技術と放射線安全管理--測定の自動化と広帯域化)
- 半導体式電子ポケット線量計の経年変化と方向特性