DETERMINATION OF IN-VITRO LUNG SOLUBILITY AND INTAKE-TO-DOSE CONVERSION FACTOR FOR TRITIATED LANTHANUM NICKEL ALUMINUM ALLOY

Farfan, E. ; Labone, T. ; Staack, G. ; Cheng, Y. ; Zhou, Y. ; Varallo, T.

关键词: In-Vitro Lung Solubility;    Dose Conversion Factor;    Metal Tritide;    LANA.75;   

DOI  :  10.2172/1057749
RP-ID  :  SRNL-STI-2011-00587
PID  :  OSTI ID: 1057749

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

A sample of tritiated lanthanum nickel aluminum alloy (LaNi4.25Al0.75 or LANA.75) similar to that used at the Savannah River Site Tritium Facilities was analyzed to estimate the particle size distribution of this metal tritide powder and the rate, at which this material dissolves in the human respiratory tract after it is inhaled. This information is used to calculate the committed effective dose received by a worker after inhaling the material. These doses, which were calculated using the same methodology given in the DOE Tritium Handbook, are presented as inhalation intake-to-dose conversion factors (DCF). The DCF for this metal tritide is less than the DCF for tritiated water and radiation worker bioassay programs designed for tritiated water are adequate to monitor for intakes of this material.