High-efficiency beam extraction and collimation using channeling in very short bent crystals

被引：141

作者：

Afonin, AG ^{[1
]}

Baranov, VT

Biryukov, VM

Breese, MBH

Chepegin, VN

Chesnokov, YA

Guidi, V

Ivanov, YM

Kotov, VI

Martinelli, G

Scandale, W

Stefancich, M

Terekhov, VI

Trbojevic, D

Troyanov, EF

Vincenzi, D

机构：

[1] Inst High Energy Phys, Protvino 142281, Russia

[2] Univ Surrey, Guildford GU2 5XH, Surrey, England

[3] Univ Ferrara, Dept Phys, I-44100 Ferrara, Italy

[4] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy

[5] INFM, I-44100 Ferrara, Italy

[6] Petersburg Nucl Phys Inst, Gatchina 188350, Russia

[7] CERN, CH-1211 Geneva, Switzerland

[8] Brookhaven Natl Lab, Upton, NY 11973 USA

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.87.094802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A silicon crystal was used to channel and extract 70 GeV protons from the U-70 accelerator with an efficiency of 85.3 +/-2.8%, as measured for a beam of similar to 10(12) protons directed towards crystals of similar to2 mm length in spills of similar to2 s duration. The experimental data follow very well the prediction of Monte Carlo simulations. This demonstration is important in devising a more efficient use of the U-70 accelerator in Protvino and provides crucial support for implementing crystal-assisted slow extraction and collimation in other machines, such as the Tevatron, RHIC, the AGS, the SNS, COSY, and the LHC.

引用

页码：art. no. / 094802

页数：4

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