第11卷‧第1期,
198301
, pp. 41-49
職業性攝入鉅 147 限制之研完
- 作者:
林友明; 林立貴; 張寶樹
- 作者服務機構:
行政院原子能委員會; 臺灣輻射偵測工作貼
- 中文摘要:
本文敘述各種職業性攝入?147之限制,內容包括空氣偵測、單一攝入和連續攝入的劑量評
估模式。由於含?147空浮微粒在粒徑為1微米時,容易經由呼吸而進入人體,因此劑量評估模
式推導攝入1微居里而累積50年的等效劑量和尿液排泄含?147的活性濃度。其結果為:當單一
攝入1微居里?147的情況,以肺為危急器官(ICRP 2)和靶組織時(ICRP 30),其累積50年
的等效劑量積存和積存等效劑量分別為1.67和2. 85 x 10-1侖目。當30天內平均地連續攝入總共1
微居里?147的情況時,其累積50年的等效劑量積存為3.92侖目。又上述的尿液排泄?147的活性
濃度分別為5.5 x 10-4,4.24 x 10-4和1.22 x 10-s微居里.毫升-1,相差不大。最後,本文敘述使
用含?147螢光鐘錶工廠的輻射防護措施,以確保工作人員之輻射安全。
w
- 英文摘要:
This paper deals with a system of limit-ation of occupational intake of 147 Pm, suchas air monitoring, single and continuousintake model. Inhalation was taken as theprimary pathway of intake due to suspensionof radioactive particulates in air with theAMAD of about l m. For single intake of1 Ci 147Pm, the dose equivalent committed(lung as critical organ) according to ICRP 2and committed dose equivalent (lung astarget tissue) according to ICRP 30 for 50yrs are 1.67 and 2.85 x 10-1 rem respectively.For continuous intake of 1 Ci 147Pm, whichwas assumed evenly distributed in a periodof 30 days, the dose equivalent committedfor 50 yrs is 3.92 rem. The 147Pm concen-trations in urine corresponding to theactivites mentioned above are 5.5x10-4, 4.24x 10-4 and 1.22 x 10-6 Ci.m1-1 respectively.The paper suggests effective radiationprotection methods, which can be applied in147Pm luminous dial manufactory.
- 中文關鍵字:
--
- 英文關鍵字:
--