Focusing of charged particle beams with various glass-made optics

被引：20

作者：

Ikeda, Tokihiro ^{[1
]}

Kanai, Yasuyuki ^{[1
]}

Kojima, Takao M. ^{[1
]}

Iwai, Yoshio ^{[1
]}

Kanazawa, Yuu ^{[2
]}

Hoshino, Masamitsu ^{[2
]}

Kobayashi, Tomohiro ^{[3
]}

Pokhi, Grigory P. ^{[4
]}

Yamazaki, Yasunori ^{[1
,5
]}

机构：

[1] RIKEN, Atom Phys Lab, 2-1 Hirosawa, Wako, Saitama 3510198, Japan

[2] Sophia Univ, Dept Phys, Tokyo 1028554, Japan

[3] RIKEN, Beam Applicat Team, Wako, Saitama 3510198, Japan

[4] Moscow MV Lomonosov State Univ, D V Skobeltsyn Inst Nucl Phys, Moscow 119992, Russia

[5] Univ Tokyo, Inst Phys, Tokyo 1538902, Japan

来源：

XXV INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS | 2007年 / 88卷

关键词：

D O I：

10.1088/1742-6596/88/1/012031

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We have developed methods to focus slow highly charged ions, MeV ions, and muon beams with various glass-made beam optics. (1) A focusing effect for an Ar8+ beam of 8 keV through a cm-long tapered capillary was obtained with a density enhancement of the transmitted beam compared with that of the input beam, which increases from 1 to 6 as the input current decreases from 30 pA to 0.8 pA. To study the stability of the transmitted beams through a glass capillary, we have measured the transmission of an 104 keV Ar8+ beam through a gap between a pair of parallel glass plates, and observed a precisely vibrational output current. (2) For 4 MeV He2+ beam, a 100 times density enhanced beam by a cm-long tapered capillary with a closed outlet was utilized to irradiate a cell in liquid. The range of the beam was controlled by the closed outlet with accuracy of similar to 1 mu m. (3) Using 40 cm-long tapered glass tubes, a density enhancement of a factor of similar or equal to 2 was observed for both positive and negative muon beams with an energy of 13 MeV.

引用

页数：9

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