Open AccessEnergy spectra of ion beams from gas-puff Z-pinch plasma
Author(s) -
Zou Xiaobing,
Xinxin Wang,
Luo Chengmu,
Han Min
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.2133
Subject(s) - pinhole camera , pinhole (optics) , pinch , z pinch , atomic physics , plasma , ion , spectral line , physics , spectrometer , collimated light , optics , plasma diagnostics , nuclear physics , laser , quantum mechanics , astronomy
The energy spectra of ion beams emitted from gas-puff Z-pinch plasma was experim entally studied with a compact Thomson spectrometer, which is composed of an inp ut window, deflecting electromagnetic fields,a rear pinhole, and a CR-39 track d etector. Ion beams were collimated by a front pinhole and the input window of Th omson spectrometer and deflected in the electromagnetic fields, and then they pa ssed through the rear pinhole to hit the CR-39 detector. Based on the detected p ictures of parabolas, we have calculated the energy spectra of ion beams and fou nd that the energy spectra move toward the direction of lower energy for a bad Z -pinch shot. A “bad Z-pinch shot" here means a shallower dip on the di/dt signal, which is the time derivative of Z-pinch current.