Graduate Thesis Or Dissertation

 

A comparison of deterministic and probabilistic radiation dose assessments at three fictitious ¹³⁷Cs contaminated sites in California, Colorado, and Florida Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/h989r732q

Descriptions

Attribute NameValues
Creator
Abstract
  • Two methods of radiation dose assessment were evaluated for the Cs-137 in soil ⇒ leafy vegetable ⇒ human consumption exposure pathway at three fictitious contaminated sites in California, Colorado, and Florida. An annual dose equation was developed and per USEPA risk assessment guidelines, traditional, single point annual dose estimates were calculated for all three sites at the central tendency (50th percentile) and the high end (95th percentile). Probability distributions were developed for the variables from the dose equation and used in a Monte Carlo simulation to create a range of probable doses to compare to the deterministic method. The Monte Carlo simulation was performed by using the software Crystal Ball® (an add-on program to the spreadsheet program Microsoft Excel®). Each fictitious site differed in soil type, so the effect of a site specific parameter could be evaluated on the annual dose assessment from both methods. The deterministic dose at the 95th percentile was 19, 11, and 50 times greater than the probabilistic dose at the hypothetical California, Colorado, and Florida sites, respectively. The deterministic dose at the 50th percentile was 0.54, 0.74, and 0.17 times less than the probabilistic dose at the hypothetical California, Colorado, and Florida sites, respectively. The Florida site, due to soil type, had a greater annual dose than the other sites, regardless of computational method used.
License
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 8-bit Grayscale) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR
Replaces
Additional Information
  • description.provenance : Submitted by John Valentino (valentjo@onid.orst.edu) on 2012-10-03T21:45:00Z No. of bitstreams: 1 BrockTerryA1997.pdf: 2050261 bytes, checksum: a83c3e321e06f941a378411442e1e52b (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-10-04T16:06:15Z (GMT) No. of bitstreams: 1 BrockTerryA1997.pdf: 2050261 bytes, checksum: a83c3e321e06f941a378411442e1e52b (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2012-10-04T16:09:43Z (GMT) No. of bitstreams: 1 BrockTerryA1997.pdf: 2050261 bytes, checksum: a83c3e321e06f941a378411442e1e52b (MD5)
  • description.provenance : Made available in DSpace on 2012-10-04T16:09:43Z (GMT). No. of bitstreams: 1 BrockTerryA1997.pdf: 2050261 bytes, checksum: a83c3e321e06f941a378411442e1e52b (MD5) Previous issue date: 1997-04-04

Relationships

Parents:

This work has no parents.

In Collection:

Items