Title:
Assessing the dose received by the victims of a radiological dispersal device with Geiger-Mueller detectors

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dc.contributor.advisor Hertel, Nolan E.
dc.contributor.author Manger, Ryan Paul en_US
dc.contributor.committeeMember Ansari, Armin
dc.contributor.committeeMember Wang, C-K Chris
dc.contributor.department Nuclear and Radiological Engineering en_US
dc.date.accessioned 2008-09-17T19:27:50Z
dc.date.available 2008-09-17T19:27:50Z
dc.date.issued 2008-07-10 en_US
dc.description.abstract This research investigates the use of G-M counters to triage the individuals who have been exposed to a Radiological Dispersal Device (RDD). Upon being exposed to an RDD, inhalation of the airborne radionuclide is a method which someone can receive a considerable amount of dose. Bioassay via analysis of excreta is a commonly used method of determining the dose received, yet it would be cumbersome if there are a large number of people needing to be screened. An in vivo method must be considered so that a non-intrusive and more efficient triaging method can be implemented. Whole body counters are commonly used in counting facilities as an in vivo bioassay method, yet they are limited in number and not easily portable. Therefore, a more portable and more common detection device should be considered. G-M survey meters are common devices that are highly portable, making them ideal candidates to fulfill this necessity. The ease of use contributes to the viability of the device as a portable, in vivo screening device. To analyze this detector, a Monte Carlo model of the detector was created to be used in simulations with the Medical Internal Radiation Dose phantoms. The detector was placed in a few locations on the phantoms. Four locations were strategically chosen for detector placement: the posterior upper right torso, the anterior upper right torso, the lateral upper thigh, and the anterior of the neck. Six phantoms were considered: Reference Male, Female, Adipose Male, Adipose Female, Post Menopausal Adipose Female, and a Child. Six radionuclides were investigated: Am-241, Co-60, Cs-137, I-131, Ir-192, and Sr-90. The nuclides were distributed throughout the phantoms according to Dose and Risk Calculation Software, a code that determines how a radionuclide is distributed over time upon inhalation, ingestion, or injection. A set of time dependent guidelines were developed, determining the count rate per unit dose inhaled for each detector location and phantom type. en_US
dc.description.degree M.S. en_US
dc.identifier.uri http://hdl.handle.net/1853/24653
dc.publisher Georgia Institute of Technology en_US
dc.subject Geiger-Mueller en_US
dc.subject GM en_US
dc.subject Radiological dispersal device en_US
dc.subject MCNP en_US
dc.subject Dosimetry en_US
dc.subject Detection en_US
dc.subject RDD en_US
dc.subject.lcsh Dirty bombs
dc.subject.lcsh Geiger-Müller counters
dc.subject.lcsh Radiation dosimetry
dc.subject.lcsh Monte Carlo method
dc.subject.lcsh Mathematical models
dc.title Assessing the dose received by the victims of a radiological dispersal device with Geiger-Mueller detectors en_US
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor Hertel, Nolan E.
local.contributor.corporatename George W. Woodruff School of Mechanical Engineering
local.contributor.corporatename College of Engineering
relation.isAdvisorOfPublication 26003284-0ae0-4887-a127-917eb8923925
relation.isOrgUnitOfPublication c01ff908-c25f-439b-bf10-a074ed886bb7
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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