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Title

AmBe Source Room MCNP Simulation and Humidity Evaluation to Estimate the Dose Rates Within Mirion Technologies Neutron Facility

Organization

Department: Nuclear Eng'g & Health Physics

University: Idaho State University College: Science & Engineering Department: Nuclear Eng'g & Health Physics 23

Document Attachments

Resource	Length	Width	Thickness
Paper	0	0	0

Specimen Elements

City

Pocatello

Coverage

Unknown to Unknown

Creator

Aaron Otterstein

Publisher

Idaho State University

Type

Thesis

Is Complete

No

Date Published

2/7/2025

Archive

digital

City: Pocatello

Degree

Master

Document Attachments

Abstracts

This study demonstrates that the MCNP tool can be used to determine the dose rate from an AmBe source in the room where it is stored and used. The results show that accounting for the primary components of the room geometry that may perturb the neutron field and defining a well-defined source is sufficient to accurately predict the dose rate within uncertainty of the known value at a known distance. Additionally, the known impact of hydrogen as a moderator is tested as simulated results of the changes to the air are performed to include 0 to 10% water vapor in air. These results indicate that there is no identifiable impact to the dose rate within the simulation from water vapor in the air. This work demonstrates that MCNP is a versatile tool that can be modified to test varying conditions and generate results about hypothetical dose rates that may help in decision making. Key Words: AmBe, MCNP