Efficiency variations of UVCS/SOHO based on laboratory measurements of replica gratings

被引：27

作者：

Gardner, LD ^{[1
]}

Atkins, N ^{[1
]}

Fineschi, S ^{[1
]}

Smith, PL ^{[1
]}

Kohl, JL ^{[1
]}

Maccari, L ^{[1
]}

Romoli, M ^{[1
]}

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

INSTRUMENTATION FOR UV/EUV ASTRONOMY AND SOLAR MISSIONS | 2000年 / 4139卷

关键词：

gratings; efficiency; UVCS/SOHO;

D O I：

10.1117/12.410542

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

We have carried out measurements of efficiency as functions of position across the surfaces of replica gratings made from the same masters as the UVCS/SOHO flight units. Variations in first order efficiency which significantly affect the interpretation of UVCS data are found along the direction perpendicular to the grooves. Variations are also found along the direction parallel to the grooves, but these do not seriously affect UVCS data interpretation. The measurements and their application to the radiometric calibration of UVCS/SOHO are discussed.

引用

页码：362 / 369

页数：8

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