Continued development of a precision cryogenic dilatometer for the James Webb Space Telescope

被引：4

作者：

Karlmann, PB ^{[1
]}

Dudik, MJ ^{[1
]}

Halverson, PG ^{[1
]}

Levine, M ^{[1
]}

Marcin, M ^{[1
]}

Peters, RD ^{[1
]}

Shaklan, S ^{[1
]}

Van Buren, D ^{[1
]}

机构：

[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

来源：

SPACE SYSTEMS ENGINEERING AND OPTICAL ALIGNMENT MECHANISMS | 2004年 / 5528卷

关键词：

coefficient of thermal expansion; dilatometer; thermal strain; fused silica; zerodur;

D O I：

10.1117/12.561342

中图分类号：

V [航空、航天];

学科分类号：

08 ; 0825 ;

摘要：

As part of the James Webb Space Telescope (JWST) materials working group, a novel cryogenic dilatometer was designed and built at NASA Jet Propulsion Laboratory to help address stringent coefficient of thermal expansion (CTE) knowledge requirements. Previously reported results and error analysis have estimated a CTE measurement accuracy for ULE of 1.7 ppb/K with a 20K/thermal load and 0.1 ppb/K with a 280K thermal load.(1) Presented here is a further discussion of the cryogenic dilatometer system and a description of recent work including system modifications and investigations.

引用

页码：63 / 71

页数：9

共 4 条

[1] Development of a precision cryogenic dilatometer for James Webb Space Telescope Materials testing [J].

Dudik, MJ ;

Halverson, PG ;

Levine, M ;

Marcin, MT ;

Peters, RD ;

Shaklan, S .

OPTICAL MATERIALS AND STRUCTURES TECHNOLOGIES, 2003, 5179 :155-164

[2]

Halverson P. G., 2004, P 5 INT C SPAC OPT I

[3] A common-path, multi-channel heterodyne laser interferometer for sub-nanometer surface metrology [J].

Zhao, F ;

Logan, JE ;

Shaklan, S ;

Shao, M .

OPTICAL ENGINEERING FOR SENSING AND NANOTECHNOLOGY (ICOSN'99), 1999, 3740 :642-645

[4]

ZHAO F, 2001, P ASPE ANN M, P345

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