Neutron angular distribution in a plasma focus obtained using nuclear track detectors

F. Castillo-Mejia, J. J.E. Herrera, J. Rangel, J. I. Golzarri, G. Espinosa, Y. S. Horowitz, L. Oster

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The dense plasma focus (DPF) is a coaxial plasma gun in which a high-density, high-temperature plasma is obtained in a focuse column for a few nanoseconds. When the filling gas is deuterium, neutrons can be obtained from fusion reactions. These are partially due to a beam of deuterons which are accelerated against the background hot plasma by large electric fields originating from plasma instabilities. Due to a beam-target effect, the angular distribution of the neutron emission is anisotropic, peaked in the forward direction along the axis of the gun. The purpose of this work is to illustrate the use of CR-39 nuclear track detectors as a diagnostic tool in the determination of the time-integrated neutron angular distribution. For the case studied in this work, neutron emission is found to have a 70% contribution from isotropic radiation and a 30% contribution from anisotropic radiation.

Original languageEnglish
Pages (from-to)557-560
Number of pages4
JournalRadiation Protection Dosimetry
Issue number1-4
StatePublished - 1 Jan 2002

ASJC Scopus subject areas

  • Radiation
  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging
  • Public Health, Environmental and Occupational Health


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