1 / 6

Comparison of Unweighted Internal vs. External Absorbed Dose Rates in Organisms Exposed to Radionuclides

This study compares the unweighted internal and external absorbed dose rates in an organism exposed to radionuclides, with considerations from the draft ICRP RAP report. Noble gases were excluded per request. Different exposure scenarios were evaluated across multiple models and methodologies.

stacy-trujillo
Download Presentation

Comparison of Unweighted Internal vs. External Absorbed Dose Rates in Organisms Exposed to Radionuclides

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Purpose: Compare unweighted internal and external absorbed dose rates assuming 1 Bq kg-1 in organism & 1 Bq unit-1 media respectively Radionuclides (n=74) considered – those from draft ICRP RAP report (+55Fe) Did not include noble gases (Ar, Kr Rn) which had been requested by some group members ‘Exercise 3’

  2. Exercise 3 Organism geometries taken from information supplied for ICRP RAPs to BWG Exercise 1 [need to check consistent with in-press report]: Hmmmm – Flatfish egg 0.2 0.2 0.2 4.19x10-6 kg

  3. Exercise 3 Exposure scenarios results requested for:

  4. Multiple runs of same model • RESRAD-BIOTA – results input using available software tool where radionuclide included v’s more complete set of results submitted by ANL • ‘ERICA’ – (i) two sets non-developer use of Tool default; non-developer ‘create organism’; (ii) ICRP RAP report, (iii) K-Biota, (iv) results using default values • R&D128 – (i) available spreadsheets; (ii) underlying methodology; (iii) analogue approach

  5. For comparison all predictions normalised to ‘infinite dose rate’ for given RN-exposure scenario Infinite dose rate estimated assuming inclusion of progeny with T1/2’s ≤ 20 d Infinite dose rate is same for all geometries for given RN-exposure scenario

More Related