Relations Between Focusing Power of Space-Charge Lenses and External Electromagnetic Fields

YU Qing-Chang; QIU Hong; HUANG Jia-Chang

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《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 1991, Vol. 15> Issue(1) : 13-16

Relations Between Focusing Power of Space-Charge Lenses and External Electromagnetic Fields

Institute of High Energy Physics,Academia Sinica,Beijing 100039

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Abstract：
Under different external electromagnetic fields,the electron densities of the electron cloud in a self-sustaining space-charge lens are measured with the radio-frequency method and the energy distributions of the ions produced in ionization are measured with the stopping field method.From them the relations between the focusing power of space-charge lenses and the external electromagnetic fields are determined.The available region of the Lebedev-Morozov formula is discussed.

References

[1]	郁庆长，强流离子光学原理，原子能出版社，北京，1982， 297页.[2] R. Booth and H.W. Lefevre, Nucd. Is.rtr. Meth., 151 (1978)， 143,[3] C. B. ЛeбeдReв и A. И. Мopoзoв,Ж.Tex, Фuз., 36 (1966)，960,[4] 郁庆长，北京对撞机通讯，1990， no. 3，5,[5] 郁庆长，第四次全国粒子加速器学术年会论文集，北京，1989， 159页.[6] S. A. Prasad and T. M. O'Neil, Phys. Fluids, 26 (1983)， 665,

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[20]	Zhang Xue-ming . ON THE ACCELERATION OF SINGLE ELECTRON IN THE ELECTROMAGNETIC FIELD. Chinese Physics C, 1980, 4(2): 168-172.

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YU Qing-Chang, QIU Hong and HUANG Jia-Chang. Relations Between Focusing Power of Space-Charge Lenses and External Electromagnetic Fields[J]. Chinese Physics C, 1991, 15(1): 13-16.

YU Qing-Chang, QIU Hong and HUANG Jia-Chang. Relations Between Focusing Power of Space-Charge Lenses and External Electromagnetic Fields[J]. Chinese Physics C, 1991, 15(1): 13-16. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Relations Between Focusing Power of Space-Charge Lenses and External Electromagnetic Fields

Corresponding author: YU Qing-Chang,

Institute of High Energy Physics,Academia Sinica,Beijing 100039

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1991-01-05

Abstract: Under different external electromagnetic fields,the electron densities of the electron cloud in a self-sustaining space-charge lens are measured with the radio-frequency method and the energy distributions of the ions produced in ionization are measured with the stopping field method.From them the relations between the focusing power of space-charge lenses and the external electromagnetic fields are determined.The available region of the Lebedev-Morozov formula is discussed.