A convenient method for the measurement of species composition from an intense neutral beam
作者:
R. R. Smith,
J. W. Stearns,
期刊:
Review of Scientific Instruments
(AIP Available online 1979)
卷期:
Volume 50,
issue 9
页码: 1070-1073
ISSN:0034-6748
年代: 1979
DOI:10.1063/1.1136011
出版商: AIP
数据来源: AIP
摘要:
We present a method to infer the approximate species mixture of neutral beam sources which accelerate positive hydrogen ions. An idealized neutral beam is specified by the accelerating voltage, the neutralizer thickness (molecules of hydrogen per cm2), and the currents of extracted H+, H+2, and H+3. These currents define two independent ratios which lie within a narrow parameter region and which can be determined by two independent measurements downstream from the source. The two suitable parameters are (1) the ratio of neutral beam to total beam power; and (2) the ratio of hydrogen produced by the neutral beam in the target volume to the hydrogen produced by the total beam. We give experimental results from the 10×10‐cm2120‐KeV test stand at the Lawrence Berkeley Laboratory.
点击下载:
PDF
(268KB)
返 回