Advantages of axially aligned crystals used in positron production at future linear colliders

被引：18

作者：

Artru, X

Chehab, R

Chevallier, M

Strakhovenko, V

机构：

[1] Budker Inst Nucl Phys, Novosibirsk 630090, Russia

[2] CNRS, IN2P3, IPN Lyon, F-69622 Villeurbanne, France

[3] Univ Lyon 1, F-69622 Villeurbanne, France

[4] Univ Paris 11, F-91898 Orsay, France

[5] CNRS, IN2P3, LAL, F-91898 Orsay, France

来源：

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS | 2003年 / 6卷 / 09期

关键词：

D O I：

10.1103/PhysRevSTAB.6.091003

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The characteristics of the electron-photon showers initiated by 2 to 10 GeV electrons aligned along the [111] axis of tungsten crystals are compared with those for the amorphous tungsten. In this energy range, as known, the positron yield at the optimal target thicknesses is larger in a crystal case only by several percent. However, the amount of the energy deposition in a crystal turns out to be considerably ( by 20% - 50%) lower than in an amorphous target providing the same positron yield, while the peak energy-deposition density is approximately of the same magnitude in both cases.

引用

页码：33 / 38

页数：6

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