Open AccessHYDROGEN RECYCLING IN HL-1 TOKAMAK
Author(s) -
LiYan Peng,
Xu Guang-Bi,
Yuan Chengjie,
Cao Zeng,
Huang Keqiang,
Zhang Shuxun,
Yan Donghai
Publication year - 1992
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.41.594
Subject(s) - tokamak , limiter , hydrogen , particle (ecology) , materials science , plasma , nuclear engineering , inlet , mechanics , atomic physics , nuclear physics , physics , mechanical engineering , computer science , oceanography , engineering , geology , telecommunications , quantum mechanics
The recycling behaviours and their effects on the particle confinement under various operational conditions in HL-1 device are studied systematically. Using the particle balance equation and a hydrogen recycling model proposed by Howe, we estimated the global recycling coefficient R(t) from the data of Hα emission and others. The fueling ratio introduced by Ehrenberg is adopted to analyse the wall pumping and the wall fuelling as the wall/limiter condition or the kinds of inlet gas are altered. The phenomena of particle release after different plasma discharges are also observed and compared by using the quadrupole mass-spectrometer.