Gadolinium particle depletion in light water reactor fuel rods Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/z029p801s

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Gadolinium is an important element to the Nuclear Fuel Industry. Two of the seven naturally occurring isotopes of gadolinium have very large absorption cross sections for thermal neutrons. The isotopes of ¹⁵⁵ Gd and ¹⁵⁷ Gd readily absorb thermal neutrons and transmute to ¹⁵⁶ Gd and ¹⁵⁸ Gd which are poor thermal neutron absorbers. Because of this property, gadolinium is termed a burnable neutron poison. At sufficient concentrations, gadolinia becomes a self-shielded absorber in that the neutron absorption event occurs very near the absorbing surface and the internal volume of the absorber sees little or no thermal neutron flux. The study of self-shielded burnable absorbers is not new to the Nuclear industry. However, most of the previous work in this area has concentrated on uniform mixtures of the gadolinium with the uranium in the fuel pellets. The present work employs simplified transport theory methods to calculate the depletion of gadolinia when small dense spherical particles are included along with the traditional uniform mixture. The complex interaction of the system geometry along with the absorption effects of the self-shielded gadolinia absorber are investigated.
Resource Type
Date Available
Date Copyright
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 256 Grayscale) using Capture Perfect 3.0 on a Canon DR-9050C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2013-06-18T14:35:57Z (GMT). No. of bitstreams: 1 HartleyKennethD1989.pdf: 1508871 bytes, checksum: 73a7f9c53e70898cea245c9f4fead25c (MD5) Previous issue date: 1988-10-28
  • description.provenance : Submitted by Kirsten Clark (kcscannerosu@gmail.com) on 2013-05-28T21:20:00Z No. of bitstreams: 1 HartleyKennethD1989.pdf: 1508871 bytes, checksum: 73a7f9c53e70898cea245c9f4fead25c (MD5)
  • description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2013-05-29T18:51:24Z (GMT) No. of bitstreams: 1 HartleyKennethD1989.pdf: 1508871 bytes, checksum: 73a7f9c53e70898cea245c9f4fead25c (MD5)
  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-06-18T14:35:57Z (GMT) No. of bitstreams: 1 HartleyKennethD1989.pdf: 1508871 bytes, checksum: 73a7f9c53e70898cea245c9f4fead25c (MD5)

Relationships

In Administrative Set:
Last modified: 08/16/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items