The heat stop for the 4-m European Solar Telescope EST

被引：8

作者：

Berrilli, F. ^{[1
]}

Egidi, A. ^{[1
]}

Del Moro, D. ^{[1
]}

Manni, F. ^{[2
]}

Cocciolo, M. ^{[1
,2
]}

Scotto, A. ^{[2
]}

Volkmer, R. ^{[3
]}

Bettonvil, F. C. M. ^{[4
]}

Vera, M. Collados ^{[5
]}

Marquez, L. Cavaller ^{[5
]}

Capuchino, J. Sanchez ^{[5
]}

机构：

[1] Univ Roma Tor Vergata, Dipartimento Fis, Via Ric Sci 1, I-00173 Rome, Italy

[2] SRS Engn Design Srl, Rome, Italy

[3] Kiepenheuer Inst Sonnenphys, D-79104 Freiburg, Germany

[4] Univ Utrecht, NL-3508 TC Utrecht, Netherlands

[5] Inst Astrofis Canarias, San Cristobal la Laguna, Tenerife, Spain

来源：

GROUND-BASED AND AIRBORNE TELESCOPES III | 2010年 / 7733卷

关键词：

heat stop; solar telescope; active cooling system; astronomy; telescopes; high heat flux; cooling;

D O I：

10.1117/12.856596

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A study is presented for the realization of the heat stop for the 4-m European Solar Telescope EST, whose feasibility study will be completed in 2011. EST is an on-axis Gregorian telescope, equipped with a four-meter diameter primary mirror and primary focal length of about six meters. The heat stop, positioned at the primary focus, must be able to remove a heat load of 13 kW, while maintaining its surfaces very close to room temperature, to avoid the onset of seeing. In order to remove the heat, three configurations have been taken into consideration: 1) a flat 45 degrees inclined heat rejecter, 2) a 45 degrees conical heat rejecter and 3) a heat trap (made of a conical heat rejecter and a cylindrical heat absorber). All devices include an air removal system to avoid the formation of thermal plumes.

引用

页数：7

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