LARGE SCALE PURIFICATION SYSTEM FOR A LIQUID ARGON TIME PROJECTION CHAMBER.

被引：0

作者：

Doe, Peter J. ^{[1
]}

Allen, Richard C. ^{[1
]}

Biller, Steven D. ^{[1
]}

Buehler, Gerhard ^{[1
]}

Johnson, Wayne A. ^{[1
]}

Chen, Herbert H. ^{[1
]}

机构：

[1] Univ of California, Irvine, CA, USA, Univ of California, Irvine, CA, USA

来源：

Nuclear instruments and methods in physics research | 1987年 / A258卷 / 02期

关键词：

ARGON;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A purification system based on reduced copper and molecular sieve has been built for a 7 m**3 liquid argon time projection chamber and it has been successfully tested. After the initial purification an attenuation length of 0. 7 m at 0. 5 kV cm** minus **1 was measured by drifting electrons over distances up to 28 cm. Further purification yielded attenuation lengths greater than equivalent to 3. 7 m at 0. 5 kV cm** minus **1 which corresponds to an impurity level of less than equivalent to 0. 2 ppb oxygen equivalent.

引用

页码：170 / 176

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