Author:
Fan H.R.,Gao L.T.,Liu A.D.,Zhuang G.,Ido T.,Xu M.,Huang J.C.,Zhang J.,Feng C.Q.,Zhou C.,Liu H.,Nie L.,Liu Y.X.,Fu B.Z.,Li J.Q.,Liu W.D.
Abstract
Abstract
A heavy ion beam probe (HIBP) is being developed and tested on the
HL-2A tokamak.
To focus on the turbulence measurement in high beta scenarios with the toroidal
magnetic field of 1.35 T, a 500 kV thallium beam is chosen and optimized.
The locations of the injection and detection system are determined based on the
probing beam trajectory calculations.
The status of the accelerator, sweep system, analyzer, and control
system is described.
Four pairs of sweep plates are positioned in both primary and secondary
beamlines to actively control the beam trajectory, where the
poloidal sweepers require a maximum of 15 kV voltages to be applied.
A parallel-plate energy analyzer with multi-slits is supplied by 100 kV
high voltage for the electric potential measurement.
The signal intensity is also evaluated to be hundreds of nA levels,
5 × 107 V/A amplifiers are therefore designed.
Software is also developed to include the data acquisition as well as the
control and monitoring of HIBP subsystems.
Subject
Mathematical Physics,Instrumentation
Cited by
2 articles.
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