Production of Metallic Ions Beam in ECR Ion Source

ZHANG ZiMin; ZHAO HongWei; ZHAO YuBin; ZHANG XueZhen; GUO XiaoHong; LIU ZhanWen

Chinese Physics C> 2000, Vol. 24> Issue(10) : 974-978

Production of Metallic Ions Beam in ECR Ion Source

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

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Abstract：
The production of metallic ion beam by means of many methods in high charge state ECR (Electron Cyclotron Resonance) ion source is reviewed. A small evaporation oven with external diameter 8 mm and length 70 mm was tested for metallic ion beam production. The small oven could reach more than 1300℃ with 110W electric power. 140eμA of Ca¹¹⁺and 70eμA of Ca¹²⁺ beams were achieved on the 14.5 GHz ECR at 1MP ion source by using the oven. The Ca¹¹⁺ beam had been provided to the IMP cyclotron for three weeks with a good stability. In order to obtain intense metallic ion beam, MIVOC (Metallic Ion from VOlatile Compound) method was tested successfully on the 14.5 GHz ECR ion source. 65eμA of Fe¹⁰⁺ by MIVOC method was obtained. During running of the ion source with Ca¹¹⁺, the oven temperature was not controlled easily by changing the electric power because of extra heating by microwave which was already tested. So a new type of oven was designed in order to avoid this problem. MIVOC method is easy to be performed and beam intensity is high, but it is only suitable for a few metallic elements, on the other hand, the vacuum chamber of the ion source could be seriously contaminated if the ion source runs for a long time.

References

[1]

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ZHANG ZiMin, ZHAO HongWei, ZHAO YuBin, ZHANG XueZhen, GUO XiaoHong and LIU ZhanWen. Production of Metallic Ions Beam in ECR Ion Source[J]. Chinese Physics C, 2000, 24(10): 974-978.

ZHANG ZiMin, ZHAO HongWei, ZHAO YuBin, ZHANG XueZhen, GUO XiaoHong and LIU ZhanWen. Production of Metallic Ions Beam in ECR Ion Source[J]. Chinese Physics C, 2000, 24(10): 974-978. shu

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Received: 1998-08-10
Revised: 1900-01-01

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Production of Metallic Ions Beam in ECR Ion Source

Corresponding author: ZHANG ZiMin,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date: 1998-08-10

Accepted Date: 1900-01-01

Available Online: 2000-10-05

Abstract: The production of metallic ion beam by means of many methods in high charge state ECR (Electron Cyclotron Resonance) ion source is reviewed. A small evaporation oven with external diameter 8 mm and length 70 mm was tested for metallic ion beam production. The small oven could reach more than 1300℃ with 110W electric power. 140eμA of Ca¹¹⁺and 70eμA of Ca¹²⁺ beams were achieved on the 14.5 GHz ECR at 1MP ion source by using the oven. The Ca¹¹⁺ beam had been provided to the IMP cyclotron for three weeks with a good stability. In order to obtain intense metallic ion beam, MIVOC (Metallic Ion from VOlatile Compound) method was tested successfully on the 14.5 GHz ECR ion source. 65eμA of Fe¹⁰⁺ by MIVOC method was obtained. During running of the ion source with Ca¹¹⁺, the oven temperature was not controlled easily by changing the electric power because of extra heating by microwave which was already tested. So a new type of oven was designed in order to avoid this problem. MIVOC method is easy to be performed and beam intensity is high, but it is only suitable for a few metallic elements, on the other hand, the vacuum chamber of the ion source could be seriously contaminated if the ion source runs for a long time.

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Production of Metallic Ions Beam in ECR Ion Source

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