Photoneutron production using bremsstrahlung from the 14-TW HERMES III electron accelerator
Creators
- 1. Sandia National Lab., Albuquerque NM (United States)
Description
An intense reusable source of pulsed photoneutrons is developed that produces ∼0.5 or 1.0 x 1014 neutron in an ∼15-ns pulse from natural lead or depleted uranium, respectively, on the HERMES III electron accelerator. Corresponding to this source, a numerical model is developed that is applicable to other pulsed-power systems. If Vp represents the peak voltage of HERMES III measured in megavolts, then model predictions show that over the range 12 MV < Vp < 20 MV, the number of neutrons produced per incident electron is 7.2 x 10-6(Vp - 11) 2.0 and 1.2 x 10-6(Vp - 7.4)2.8 in lead and uranium, respectively. Measurements using a set of nuclear activation foils confirm these predictions as well as predictions of the spatial and spectral distribution of the neutrons at Vp = 19 MV
Additional details
Publishing Information
- Journal Title
- Nuclear Science and Engineering
- Journal Volume
- 114
- Journal Issue
- 3
- Journal Page Range
- p. 190-213.
- ISSN
- 0029-5639
- CODEN
- NSENAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 24069726
- Subject category
- S07: ISOTOPES AND RADIATION SOURCES; S43: PARTICLE ACCELERATORS;
- Descriptors DEI
- ACCELERATORS; BREMSSTRAHLUNG; DEPLETED URANIUM; DESIGN; LEAD; MATHEMATICAL MODELS; NEUTRON SOURCES; PHOTOFISSION; PHOTONEUTRONS; PHOTONUCLEAR REACTIONS; PHOTOPRODUCTION; SPATIAL DISTRIBUTION; TARGETS
- Descriptors DEC
- ACTINIDES; BARYONS; BASIC INTERACTIONS; DISTRIBUTION; ELECTROMAGNETIC INTERACTIONS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; FISSION; HADRONS; INTERACTIONS; METALS; NEUTRONS; NUCLEAR REACTIONS; NUCLEONS; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE SOURCES; PHOTONUCLEONS; RADIATION SOURCES; RADIATIONS; URANIUM