PAC2013 - List of Authors (Souza, R.)

Paper	Title	Page
THPMA14	A High-Intensity Neutron Production Source based on Rotary Valving	1385
	B. Rusnak, P. Fitsos, M. Hall, P. Peaslee, R. Souza LLNL, Livermore, California, USA
	Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. As part of the effort to develop a fast neutron imaging capability at LLNL,a novel windowless deuterium gas target has been developed for use with high intensity pulse deuteron beams to generate neutrons via the D(d,n)3He reaction. The system was designed to create high-velocity cross-flowing gas to minimize rarefaction due to beam heating in the target gas. The system also employs a unique gas beam stop to minimize knock-on neutrons from implanted deuterons over time. A prototype system employing rotary-valving to generate and modulate gas flow, and a rotating-aperture to minimize gas back streaming into the beamline vacuum system has been designed and built. Design details, supporting analyses, and initial characterization measurements of the gas dynamics of the system shall be presented.

Paper

Title

Page

A High-Intensity Neutron Production Source based on Rotary Valving

1385

B. Rusnak, P. Fitsos, M. Hall, P. Peaslee, R. Souza
LLNL, Livermore, California, USA

Funding: This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.
As part of the effort to develop a fast neutron imaging capability at LLNL,a novel windowless deuterium gas target has been developed for use with high intensity pulse deuteron beams to generate neutrons via the D(d,n)3He reaction. The system was designed to create high-velocity cross-flowing gas to minimize rarefaction due to beam heating in the target gas. The system also employs a unique gas beam stop to minimize knock-on neutrons from implanted deuterons over time. A prototype system employing rotary-valving to generate and modulate gas flow, and a rotating-aperture to minimize gas back streaming into the beamline vacuum system has been designed and built. Design details, supporting analyses, and initial characterization measurements of the gas dynamics of the system shall be presented.