A marginal oscillator detector for ion cyclotron resonance spectrometers
作者:
A. Warnick,
L. R. Anders,
T. E. Sharp,
期刊:
Review of Scientific Instruments
(AIP Available online 1974)
卷期:
Volume 45,
issue 7
页码: 929-935
ISSN:0034-6748
年代: 1974
DOI:10.1063/1.1686771
出版商: AIP
数据来源: AIP
摘要:
Design, construction, and performance of a solid state marginal oscillator for detection of ions in ion cyclotron resonance experiments are described. Special design features include noise matching a high Q tank to an FET preamplifier which sacrifices voltage level for improved S/N ratio, amplitude limiting to remove noise from the feedback signal, and impedance matching the feedback resistor to the tank to minimize phase shift, parasitic capacitive coupling, and tank loading. A simple electrical circuit which simulates power absorption by ions for performance testing and comparison among marginal oscillators for icr applications is also described.
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