Negative ion production and beam extraction processes in a large ion source
K Tsumori, K Ikeda, H Nakano, M Kisaki… - Review of Scientific …, 2016 - pubs.aip.org
Recent research results on negative-ion-rich plasmas in a large negative ion source have
been reviewed. Spatial density and flow distributions of negative hydrogen ions (H−) and
positive hydrogen ions together with those of electrons are investigated with a 4-pin probe
and a photodetachment (PD) signal of a Langmuir probe. The PD signal is converted to local
H− density from signal calibration to a scanning cavity ring down PD measurement.
Introduction of Cs changes the slope of plasma potential local distribution depending upon …
been reviewed. Spatial density and flow distributions of negative hydrogen ions (H−) and
positive hydrogen ions together with those of electrons are investigated with a 4-pin probe
and a photodetachment (PD) signal of a Langmuir probe. The PD signal is converted to local
H− density from signal calibration to a scanning cavity ring down PD measurement.
Introduction of Cs changes the slope of plasma potential local distribution depending upon …
Negative ion production and beam extraction processes in a large ion source
H Nakano, M Goto, K Nagaoka, M Osakabe… - Review of Scientific …, 2016 - osti.gov
Recent research results on negative-ion-rich plasmas in a large negative ion source have
been reviewed. Spatial density and flow distributions of negative hydrogen ions (H {sup−})
and positive hydrogen ions together with those of electrons are investigated with a 4-pin
probe and a photodetachment (PD) signal of a Langmuir probe. The PD signal is converted
to local H {sup−} density from signal calibration to a scanning cavity ring down PD
measurement. Introduction of Cs changes the slope of plasma potential local distribution …
been reviewed. Spatial density and flow distributions of negative hydrogen ions (H {sup−})
and positive hydrogen ions together with those of electrons are investigated with a 4-pin
probe and a photodetachment (PD) signal of a Langmuir probe. The PD signal is converted
to local H {sup−} density from signal calibration to a scanning cavity ring down PD
measurement. Introduction of Cs changes the slope of plasma potential local distribution …
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