NUKLEONIKA 2006, 51(1):43-46
Chengmu Luo, Xinxin Wang, Xiaobing Zou
Department of Electrical Engineering and Applied Electronic Technology,
Tsinghua University, Beijing 100084, P. R. China
A small gas puff Z-pinch device has been constructed and operated. The device has the parameters:
the capacitance of energy storage capacitors 16 mF, charging voltage 22 kV,
peak current 210 kA and a quarter of current period 2.4 ms. A three-frame
Mach-Zehnder interferometer and a compact Thomson ion energy analyzer were developed for Z-pinch plasma
experiment. According to the results of diagnostics, the electron density ne of the plasma right
before pinch instant is larger than 5.4 ´ 1019/cm3,
the corresponding pinch velocity v of the plasma sheath is 9.0 cm/ms.
Clear parabolas produced by neon ions Ne+, Ne2+, Ne3+ and Ne4+
on CR-39 target have been observed. The energy spectra dN/dTdw
for Ne+, Ne2+, Ne3+ and Ne4+ ions were
determined. The highest energies of Ne+, Ne2+, Ne3+ and Ne4+ ions
emitted from our Z-pinch plasma are below 1.3 MeV.