Supporting technologies for a long-pulse spallation source

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Description

This is the final report of a two-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project is directed toward the development of the technologies required for a long-pulse, spallation neutron source (LPSS). Traditionally, spallation neutron sources have used proton accelerators that provide intense, short ({le} 1{micro}s) pulses of high-energy protons to a spallation target. A LPSS uses a proton pulse with longer time duration ({approx} 1 ms) and offers the possibility of achieving very high spallation neutron fluxes at substantially lower cost. The performance of a LPSS is very dependent on the ... continued below

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5 pages

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Russell, G.J.; Weinacht, D.J.; Ferguson, P.D.; Pitcher, E.J.; Court, J.D. & Greene, G.L. December 31, 1998.

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Description

This is the final report of a two-year, Laboratory Directed Research and Development (LDRD) project at the Los Alamos National Laboratory (LANL). The project is directed toward the development of the technologies required for a long-pulse, spallation neutron source (LPSS). Traditionally, spallation neutron sources have used proton accelerators that provide intense, short ({le} 1{micro}s) pulses of high-energy protons to a spallation target. A LPSS uses a proton pulse with longer time duration ({approx} 1 ms) and offers the possibility of achieving very high spallation neutron fluxes at substantially lower cost. The performance of a LPSS is very dependent on the neutronic performance of the target-moderator system. A detailed study of this performance has been carried out using Monte Carlo simulations. It should be noted that a LPSS is optimally suited to a fully coupled moderator. Neutron production per proton from such a moderator is a factor of five to seven greater than that produce d by moderators used at short pulse sources. The results of these efforts have been published in a series of articles.

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5 pages

Notes

INIS; OSTI as DE00304129

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  • Other Information: Supercedes report DE99001268; PBD: [1998]

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  • Other: DE99001268
  • Report No.: LA-UR--98-2607
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/304129 | External Link
  • Office of Scientific & Technical Information Report Number: 304129
  • Archival Resource Key: ark:/67531/metadc678638

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  • December 31, 1998

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • May 5, 2016, 7:23 p.m.

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Russell, G.J.; Weinacht, D.J.; Ferguson, P.D.; Pitcher, E.J.; Court, J.D. & Greene, G.L. Supporting technologies for a long-pulse spallation source, report, December 31, 1998; New Mexico. (digital.library.unt.edu/ark:/67531/metadc678638/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.