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arXiv physics/0008036physics.acc-ph
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正电子源特性的测量

Experimental Determination of the Characteristics of a Positron Source Using Channeling

R. Chehab, R. Cizeron, C. Sylvia, V. Baier, K. Beloborodov, A. Bukin, S. Burdin, T. Dimova, A. Drozdetsky, V. Druzhinin, M. Dubrovin, V. Golubev, S. Serednyakov… 展开作者

R. Chehab, R. Cizeron, C. Sylvia, V. Baier, K. Beloborodov, A. Bukin, S. Burdin, T. Dimova, A. Drozdetsky, V. Druzhinin, M. Dubrovin, V. Golubev, S. Serednyakov, V. Shary, V. Strakhovenko, X. Artru, M. Chevallier, D. Dauvergne, R. Kirsch, Ph. Lautesse, J-C. Poizat, J. Remillieux, A. Jejcic, P. Keppler, J. Major, L. Gatignon, G. Bochek, V. Kulibaba, N. Maslov, A. Bogdanov, A. Potylitsin, I. Vnukov

摘要:

数值模拟和“原理证明”实验清楚地表明,有兴趣使用晶体作为直线对撞机强正电子源专用的光子发生器。在2000年5月至8月间,利用10 GeV的次级电子束,对轴向取向的厚钨晶体进行了实验研究。在简要回顾了利用定向晶体沟道效应的正电子源的主要特点后,描述了实验装置。特别强调的是由部分浸入磁场中的漂移室制成的正电子探测器。对于入射电子,在4和8 mm的晶体中,在5至40 GeV的能量范围内观察到对准晶体中的光子和正电子产生的增强,如在混合靶中。关于这个实验的第一批结果如下所示。

英文摘要:

Numerical simulations and `proof of principle' experiments showed clearly the interest of using crystals as photon generators dedicated to intense positron sources for linear colliders. An experimental investigation, using a 10 GeV secondary electron beam, of the SPS-CERN, impinging on an axially oriented thick tungsten crystal, has been prepared and operated between May and August 2000. After a short recall on the main features of positron sources using channeling in oriented crystals, the experimental set-up is described. A particular emphasis is put on the positron detector made of a drift chamber, partially immersed in a magnetic field. The enhancement in photon and positron production in the aligned crystal have been observed in the energy range 5 to 40 GeV, for the incident electrons, in crystals of 4 and 8 mm as in an hybrid target. The first results concerning this experiment are presented hereafter.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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