Experimental study of neutron emission under low rep-rate operation in a small plasma focus device

Author

Han, M. ; Guo, Zh.G. ; Wang, X.X.

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

fYear

2000

fDate

4-7 June 2000

Firstpage

176

Abstract

Summary form only given. The results of experiments carried out on a small plasma focus device (DPF-2.2) with 2.2 kJ and 230 kA under low repetitive rate as 1/60 pps are presented. The objective of these experiments was to investigate the neutron emission characteristics. In order to obtain time-integrated, time-resolved neutron and current, di/dt measurements, the diagnostics used during these experiments were: silver activation detector (SAD), scintillator-photomultiplier (ST-PMT) and integrated, resolved Rogowski coils. The signals were recorded at the same instant for per shot. Due to decay time of the activated silver (110Ag, /sup 108/Ag) it could hardly used at a repetitive rate higher than 1/60 pps.

Keywords

plasma diagnostics; plasma focus; 2.2 kJ; 230 kA; Ag activation detector; low repetitive-rate operation; neutron emission characteristics; resolved Rogowski coils; scintillator-photomultiplier; small plasma focus device; time-integrated time-resolved measurements; Current measurement; Detectors; Neutrons; Plasma devices; Plasma diagnostics; Plasma measurements; Plasma properties; Radioactive decay; Signal resolution; Silver;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2000. ICOPS 2000. IEEE Conference Record - Abstracts. The 27th IEEE International Conference on

Conference_Location

New Orleans, LA, USA

ISSN

0730-9244

Print_ISBN

0-7803-5982-8

Type

conf

DOI

10.1109/PLASMA.2000.854904

Filename

854904