Design of an ogive-shaped beamstop

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This paper addresses the evolution, design, and development of a novel approach for topping cw (continuous-wave), non-rastered proton beams. Capturing the beam in vacuo within a long, axisymmetric surface of revolution has the advantages of spreading the deposited energy over a large area while minimizing prompt neutron backstreaming and reducing shield size and mass. Evolving from a cylinder/cone concept, the ogive shape avoids abrupt changes in geometry that produce sharp thermal transitions, allowing the beam energy to be deposited gracefully along its surface. Thermal management at modest temperature levels is provided with a simple, one-pass countercurrent forced-convection water passage outside ... continued below

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3 p.

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Hagan, T.H. van; Doll, D.W.; Schneider, J.D. & Spinos, F.R. December 31, 1998.

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Description

This paper addresses the evolution, design, and development of a novel approach for topping cw (continuous-wave), non-rastered proton beams. Capturing the beam in vacuo within a long, axisymmetric surface of revolution has the advantages of spreading the deposited energy over a large area while minimizing prompt neutron backstreaming and reducing shield size and mass. Evolving from a cylinder/cone concept, the ogive shape avoids abrupt changes in geometry that produce sharp thermal transitions, allowing the beam energy to be deposited gracefully along its surface. Thermal management at modest temperature levels is provided with a simple, one-pass countercurrent forced-convection water passage outside the ogive. Hydrophone boiling sensors provide overtemperature protection. The concept has been demonstrated under beam conditions in the CRITS (Chalk River Injector Test Stand) facility.

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3 p.

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INIS; OSTI as DE99002069

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  • 19. international linac conference, Chicago, IL (United States), 23-28 Aug 1998

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  • Other: DE99002069
  • Report No.: LA-UR--98-3130
  • Report No.: CONF-980827--
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 325777
  • Archival Resource Key: ark:/67531/metadc675622

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  • December 31, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • Feb. 25, 2016, 2:30 p.m.

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Hagan, T.H. van; Doll, D.W.; Schneider, J.D. & Spinos, F.R. Design of an ogive-shaped beamstop, article, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc675622/: accessed October 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.