Preliminary performance measurements of bolometers for. the planck high frequency instrument

被引:1
作者
Holmes, W [1 ]
Bock, J [1 ]
Ganga, K [1 ]
Hristov, VV [1 ]
Hustead, L [1 ]
Koch, T [1 ]
Lange, AE [1 ]
Paine, C [1 ]
Yun, M [1 ]
机构
[1] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA
来源
MILLIMETER AND SUBMILLIMETER DETECTORS FOR ASTRONOMY | 2003年 / 4855卷
关键词
mm-wave sensors; bolometer; micro-machining; cosmic microwave background;
D O I
10.1117/12.459421
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report on the characterization of bolometers fabricated at the Jet Propulsion Laboratory for the High Frequency Instrument (HFI) of the joint ESA/NASA Herschel/Planck mission to be launched in 2007. The HFI is a multicolor focal plane which consists I of 48 bolometers operated at 100mK. Each bolometer is mounted to a feedhorn-filter assembly which defines one of six frequency bands centered between 100-857GHz. Four detectors in each of six bands are coupled to both linear polarizations and thus measure the total intensity. In addition, eight detectors in each of 3 bands (143, 217, and 353GHz) couple only to a single linear polarization and thus provide measurements of the Stokes parameters, Q and U, as well the total intensity. The detectors axe required to achieve a Noise Equivalent Power (NEP) at or below the background limit similar to 10(-17)W/rootHz for the telescope and time constants of a few ins, short enough to resolve point sources as the 5 to 9 arc-minute beams move across the sky in great circles at 1 rpm. The bolometers axe tested at 100mK in a commercial dilution refrigerator with a custom built thermal control system to regulate the heat sink with precision < 100nK/rootHz. The 100mK tests include dark electrical characterization of the load curves, optical and electrical measurement of the thermal time constants and measurement of the noise spectral density from 0.01 to 10Hz for up to 24 bolometers simultaneously.
引用
收藏
页码:208 / 216
页数:9
相关论文
共 12 条
[1]   NONOHMIC HOPPING CONDUCTION IN DOPED GERMANIUM AT T LESS-THAN 1-K [J].
GRANNAN, SM ;
LANGE, AE ;
HALLER, EE ;
BEEMAN, JW .
PHYSICAL REVIEW B, 1992, 45 (08) :4516-4519
[2]   THE INFLUENCE OF BACKGROUND POWER ON THE PERFORMANCE OF AN IDEAL BOLOMETER [J].
GRIFFIN, MJ ;
HOLLAND, WS .
INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, 1988, 9 (10) :861-875
[3]  
JONES W, 2002, UNPUB P SPIE
[4]   LAMBDA-POINT EXPERIMENT IN MICROGRAVITY [J].
LIPA, JA ;
SWANSON, DR ;
NISSEN, JA ;
CHUI, TCP .
CRYOGENICS, 1994, 34 (05) :341-347
[5]   BOLOMETERS - ULTIMATE SENSITIVITY, OPTIMIZATION, AND AMPLIFIER COUPLING [J].
MATHER, JC .
APPLIED OPTICS, 1984, 23 (04) :584-588
[6]   ELECTRICAL SELF-CALIBRATION OF NONIDEAL BOLOMETERS [J].
MATHER, JC .
APPLIED OPTICS, 1984, 23 (18) :3181-3183
[7]   Composite infrared bolometers with Si3N4 micromesh absorbers [J].
Mauskopf, PD ;
Bock, JJ ;
DelCastillo, H ;
Holzapfel, WL ;
Lange, AE .
APPLIED OPTICS, 1997, 36 (04) :765-771
[8]  
McCammon D, 2002, PHYS STATUS SOLIDI B, V230, P197, DOI 10.1002/1521-3951(200203)230:1<197::AID-PSSB197>3.0.CO
[9]  
2-8
[10]  
PAINE C, 2001, ADV CRYO ENG, V47