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Observation and interpretation of neutron origin prior to hard X rays and pinch in a hundred joules plasma focus device

Published online by Cambridge University Press:  26 October 2017

J. Jain ,
J. Moreno ,
D. Morales ,
S. Davis ,
B. Bora ,
G. Avaria ,
M.J. Inestrosa-Izurieta  and
L. Soto
J. Jain*
Affiliation:
Universidad de Talca, Talca, Chile Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile
J. Moreno
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile Departamento de Ciencias Físicas, Universidad Andres Bello, Republica 220, Santiago, Chile
D. Morales
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile
S. Davis
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile Departamento de Ciencias Físicas, Universidad Andres Bello, Republica 220, Santiago, Chile
B. Bora
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile Departamento de Ciencias Físicas, Universidad Andres Bello, Republica 220, Santiago, Chile
G. Avaria
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile
M.J. Inestrosa-Izurieta
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile Departamento de Ciencias Físicas, Universidad Andres Bello, Republica 220, Santiago, Chile
L. Soto*
Affiliation:
Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile Center for Research and Applications in Plasma Physics and Pulsed Power, P4, Chile Departamento de Ciencias Físicas, Universidad Andres Bello, Republica 220, Santiago, Chile
*
Address correspondence and reprint requests to: J. Jain and L. Soto, Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile. E-mail: [email protected] and [email protected]
Address correspondence and reprint requests to: J. Jain and L. Soto, Comisión Chilena de Energía Nuclear, Casilla 188-D, Santiago, Chile. E-mail: [email protected] and [email protected]
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Abstract

The temporal correlation between neutron and hard X-ray (HXR) emissions from a hundred joules plasma focus device (PF-400J) was studied. A method, time history analysis, to estimate the time of origin of neutrons with respect to HXRs is applied. In most of the discharges, it was found that neutrons are originated before HXRs in the axial direction and after HXRs in the radial direction. In some discharges, the time difference between HXRs and neutrons origin was found large enough, so that it can be interpreted that those neutrons would have been originated before the pinch. A qualitative discussion is conjectured to explain the experimental observations.

Keywords

Hard X raysNeutronsPF-400JTime history analysis
Type
Research Article
Information
Laser and Particle Beams , Volume 35 , Issue 4 , December 2017 , pp. 656 - 662
Copyright
Copyright © Cambridge University Press 2017 

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