CHARACTERISTICS OF HIGH ENERGY DEUTERONS IN THE FRASCATI 1 - MJ PLASMA FOCUS
Measurements previously carried out on Plasma Focus (PF) devices on neutrons emitted in the 7-Li(d,n) reaction gave information on the ion beam energy spectrum. The experiment carried out at Frascati with LiH targets has two aims: to develop the measurements together with their interpretation methodology, and to study the physical properties of the high energy part of the ion spectrum. The energy spectra of prompt neutrons emitted by the D(d,n) and the 7-Li(d,n) reactions are analyzed using time of-flight (TOF) spectrometers. LiH thick targets are placed on the PF axis of symmetry at a distance of 10 cm above the top of the inner electrode. The detection system consists of three NE102A scintillators (placed at 11 m, 34 m, and 113 m from, and 90 degrees to the PF axis), a Pb activation detector (NE102 scintillator covered with lead), and an Ag activation detector (GM counter covered with Ag and surrounded with paraffin). The Ag counter has been absolutely calibrated and its sensitivity to the neutron energy is weak, while the Pb counter is effectively sensitive to neutrons with E-n > 5.MeV. The PF is operated with the small diameter anode in a Mather type geometry (solid anode O-slashed 160 mm, outer electrode bars at O-slashed 220 mm, a pyrex insulator at 250 kJ, 20 kV; the filling D-2 gas pressure is selected in the range 0.5 - 3 Torr.
Bibliographic Reference: 11TH EUROPEAN CONFERENCE ON CONTROLLED FUSION AND PLASMA PHYSICS, AACHEN (GERMANY), SEPT. 5-9, 1983 IN ENEA REPORT 83.23/CC, PP. 43-45, 1983 WRITE TO ENEA + CENTRO RICERCHE ENERGIA FRASCATI, SERVIZIO STUDI E DOCUMENTAZIONE, C.P. 65 00044 FRASCATI, ROMA (I
Record Number: 1989122050900 / Last updated on: 1987-01-01
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