The accuracy of heavy‐ion mass measurements using time of flight‐ion cyclotron resonance in a Penning trap
作者:
G. Bollen,
R. B. Moore,
G. Savard,
H. Stolzenberg,
期刊:
Journal of Applied Physics
(AIP Available online 1990)
卷期:
Volume 68,
issue 9
页码: 4355-4374
ISSN:0021-8979
年代: 1990
DOI:10.1063/1.346185
出版商: AIP
数据来源: AIP
摘要:
Ion motion in a Penning trap and the electrical signals it can produce have been analyzed for the purpose of identifying the important causes of uncertainty in high‐accuracy mass measurements of heavy ions. The role of the azimuthal quadrupole electric field in signal pickup, and its effects on ion motion at the sum frequency of the cyclotron and magnetron motions, have been identified. A useful scheme for calculating the signal strength and strength of the interaction between an applied field and the ion motion has been developed. The important sources of uncertainty in using the sum frequency of the cyclotron and magnetron motions for determining the ion mass are discussed. Particular application is made to the case of cyclotron resonance detection by observation of the time of flight of ejected ions.
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