The optical layout of the HEGRA Cherenkov telescopes

被引：6

作者：

Akhperjanian, A ^{[1
]}

Kankanian, R

Sahakian, V

Heusler, A

Wiedner, CA

Wirth, H

机构：

[1] Yerevan Phys Inst, Yerevan 375036, Armenia

[2] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

来源：

EXPERIMENTAL ASTRONOMY | 1998年 / 8卷 / 02期

关键词：

optical layout; Cherenkov telescope; very high energy gamma ray astronomy;

D O I：

10.1023/A:1007915512981

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The raytracing technique was used to derive a suitable design for the HEGRA system of Cherenkov telescopes, which is at present commissioned at La Palma. The reflectors with a diameter of similar to 3.9 m consist of 30 spherical mirrors with focal lengths in the range of 4.88 - 4.94 m. It is shown that 93% of the photons from the Cherenkov light emitted by an extended air shower are contained in the camera pixels, 0.25 degrees in diameter, for the full field of view of theta = +/- 2.5 degrees. The optical performance of the HEGRA design is compared to other layouts.

引用

页码：135 / 152

页数：18

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