The Resource Measurement of 225Ac and 223Ra production cross sections and thermal-hydraulic modeling of a RbCl/Ga target stack, by John W. Weidner

Measurement of 225Ac and 223Ra production cross sections and thermal-hydraulic modeling of a RbCl/Ga target stack, by John W. Weidner

Label
Measurement of 225Ac and 223Ra production cross sections and thermal-hydraulic modeling of a RbCl/Ga target stack
Title
Measurement of 225Ac and 223Ra production cross sections and thermal-hydraulic modeling of a RbCl/Ga target stack
Statement of responsibility
by John W. Weidner
Title variation
Measurement of actinium-225 and radium-223 production cross sections and thermal-hydraulic modeling of a rubidium chloride/gallium target stack
Creator
Contributor
Thesis advisor
Subject
Language
eng
Summary
Cross sections for the formation of 223,225 Ra, 225 Ac and 227 Th by the proton bombardment of natural thorium targets were measured at proton energies of 800 MeV and below 200 MeV. The production cross section for 227 Ac was also measured at 800 MeV. No earlier experimental cross section data for the production of 223,225 Ra, 227 Ac and 227 Th at 800 MeV by this method were found in the literature. For proton energies below 200 MeV, the measurements of this work are in good agreement with previously published data and offer a complete excitation function for 223,225 Ra in the proton energy range of 90-200 MeV. A comparison of theoretical predictions to the experimental data shows reasonable-to-good agreement. Results indicate that accelerator-based production of 225 Ac and 223 Ra at 800 MeV and below 200 MeV is a viable production method capable of increasing current annual yield by nearly two orders of magnitude. Additionally, a thermal-hydraulic model of a RbCl and Ga target stack, which is used for routine production of the PET isotopes 82 Sr and 68 Ge at Los Alamos, was created using ANSYS CFX. This model simulates the in-situ temperature profile and buoyant convective fluid flow of the targets while subject to intense 100 MeV proton beams. The CFX model provides a foundation for additional and more expansive parameter sensitivity studies by the Los Alamos isotope production team as they seek to increase PET isotope production yields in the near term
Has edition
Cataloging source
MUU
http://library.link/vocab/creatorDate
1969-
http://library.link/vocab/creatorName
Weidner, John W.
Degree
Ph.D.
Dissertation year
2012.
Government publication
government publication of a state province territory dependency etc
Granting institution
University of Wisconsin--Madison
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • bibliography
  • theses
http://library.link/vocab/relatedWorkOrContributorName
De Luca, Paul M.
http://library.link/vocab/subjectName
  • Medical physics
  • Radiology
  • Diagnostic imaging
  • Actinium
  • Radium
Label
Measurement of 225Ac and 223Ra production cross sections and thermal-hydraulic modeling of a RbCl/Ga target stack, by John W. Weidner
Instantiates
Publication
Note
  • Advisor: Paul M. DeLuca
  • Typescript
Bibliography note
Includes bibliographical references
Carrier category
volume
Carrier category code
  • nc
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
865582265
Dimensions
29 cm
Extent
x, 138 pages
Form of item
regular print reproduction
Media category
unmediated
Media MARC source
rdamedia.
Media type code
  • n
Other physical details
illustrations
System control number
(OCoLC)865582265
Label
Measurement of 225Ac and 223Ra production cross sections and thermal-hydraulic modeling of a RbCl/Ga target stack, by John W. Weidner
Publication
Note
  • Advisor: Paul M. DeLuca
  • Typescript
Bibliography note
Includes bibliographical references
Carrier category
volume
Carrier category code
  • nc
Carrier MARC source
rdacarrier.
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent.
Control code
865582265
Dimensions
29 cm
Extent
x, 138 pages
Form of item
regular print reproduction
Media category
unmediated
Media MARC source
rdamedia.
Media type code
  • n
Other physical details
illustrations
System control number
(OCoLC)865582265

Library Locations

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      38.919360 -92.291620
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