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Title: Apparatus for preparing medical radioisotopes

Abstract

Apparatus for radioisotope production includes housing, a plurality of target disks inside the housing and a curved windows positioned convex inward toward the disks. During operation, coolant flows though the housing across the disks and windows while electron beams passes through the window and the disks. The window temperature increases, rising the fastest in the middle of the window where the electron beam hits the window. A flat window would buckle because the center would deform during thermal expansion against the relatively unaffected periphery, but the curved window shape allows the window to endure high thermal and mechanical stress created by a combination of heating from the electron beam(s) and elevated pressure from coolant on the inside of the window. Such a window may be used for applications in which a pressurized coolant acts on only one side of the window.

Inventors:
; ;
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771734
Patent Number(s):
10867715
Application Number:
15/526,699
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05H - PLASMA TECHNIQUE
G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 11/17/2015
Country of Publication:
United States
Language:
English

Citation Formats

Woloshun, Keith A., Olivas, Eric R., and Dale, Gregory E. Apparatus for preparing medical radioisotopes. United States: N. p., 2020. Web.
Woloshun, Keith A., Olivas, Eric R., & Dale, Gregory E. Apparatus for preparing medical radioisotopes. United States.
Woloshun, Keith A., Olivas, Eric R., and Dale, Gregory E. Tue . "Apparatus for preparing medical radioisotopes". United States. https://www.osti.gov/servlets/purl/1771734.
@article{osti_1771734,
title = {Apparatus for preparing medical radioisotopes},
author = {Woloshun, Keith A. and Olivas, Eric R. and Dale, Gregory E.},
abstractNote = {Apparatus for radioisotope production includes housing, a plurality of target disks inside the housing and a curved windows positioned convex inward toward the disks. During operation, coolant flows though the housing across the disks and windows while electron beams passes through the window and the disks. The window temperature increases, rising the fastest in the middle of the window where the electron beam hits the window. A flat window would buckle because the center would deform during thermal expansion against the relatively unaffected periphery, but the curved window shape allows the window to endure high thermal and mechanical stress created by a combination of heating from the electron beam(s) and elevated pressure from coolant on the inside of the window. Such a window may be used for applications in which a pressurized coolant acts on only one side of the window.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {12}
}

Works referenced in this record:

Accelerator target
patent, June 1999


Method of producing molybdenum-99
patent, July 1998


Production of radioisotopes with a high specific activity by isotopic conversion
patent, March 2001


Radiation Beam Window
patent, October 1963