Planck pre-launch status: Low Frequency Instrument optics

被引：21

作者：

Sandri, M. ^{[1
]}

Villa, F. ^{[1
]}

Bersanelli, M. ^{[2
]}

Burigana, C. ^{[1
]}

Butler, R. C. ^{[1
]}

D'Arcangelo, O. ^{[3
]}

Figini, L. ^{[3
]}

Gregorio, A. ^{[4
,5
]}

Lawrence, C. R. ^{[6
]}

Maino, D. ^{[2
]}

Mandolesi, N. ^{[1
]}

Maris, M. ^{[4
]}

Nesti, R. ^{[7
]}

Perrotta, F. ^{[8
]}

Platania, P. ^{[3
]}

Simonetto, A. ^{[3
]}

Sozzi, C. ^{[3
]}

Tauber, J. ^{[9
]}

Valenziano, L. ^{[1
]}

机构：

[1] INAF IASF Bologna, I-40129 Bologna, Italy

[2] Univ Milan, I-20133 Milan, Italy

[3] IFP CNR, Milan, Italy

[4] INAF OATs, I-34143 Trieste, Italy

[5] Univ Trieste, Dept Phys, I-34127 Trieste, Italy

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

[7] INAF, Osservatorio Astrofis Arcetri, I-50125 Florence, Italy

[8] SISSA, I-34014 Trieste, Italy

[9] ESA ESTEC, NL-2200 AG Noordwijk, Netherlands

来源：

ASTRONOMY & ASTROPHYSICS | 2010年 / 520卷

关键词：

cosmic microwave background; space vehicles: instruments; instrumentation: detectors; submillimeter: general; telescopes; MICROWAVE BACKGROUND ANISOTROPY; DIPOLE STRAYLIGHT CONTAMINATION; ANGULAR RESOLUTION; TRADE-OFF;

D O I：

10.1051/0004-6361/200912891

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe the optical design and optimisation of the Low Frequency Instrument (LFI), one of two instruments onboard the Planck satellite, which will survey the cosmic microwave background with unprecedented accuracy. The LFI covers the 30-70 GHz frequency range with an array of cryogenic radiometers. Stringent optical requirements on angular resolution, sidelobes, main beam symmetry, polarization purity, and feed orientation have been achieved. The optimisation process was carried out by assuming an ideal telescope according to the Planck design and by using both physical optics and multi-reflector geometrical theory of diffraction. This extensive study led to the flight design of the feed horns, their characteristics, arrangement, and orientation, while taking into account the opto-mechanical constraints imposed by complex interfaces in the Planck focal surface.

引用

页数：12

共 27 条

[1]

[Anonymous], 1996, REFLECTING TELESCOPE

[2] Planck pre-launch status: Design and description of the Low Frequency Instrument [J].

Bersanelli, M. ;

Mandolesi, N. ;

Butler, R. C. ;

Mennella, A. ;

Villa, F. ;

Aja, B. ;

Artal, E. ;

Artina, E. ;

Baccigalupi, C. ;

Balasini, M. ;

Baldan, G. ;

Banday, A. ;

Bastia, P. ;

Battaglia, P. ;

Bernardino, T. ;

Blackhurst, E. ;

Boschini, L. ;

Burigana, C. ;

Cafagna, G. ;

Cappellini, B. ;

Cavaliere, F. ;

Colombo, F. ;

Crone, G. ;

Cuttaia, F. ;

D'Arcangelo, O. ;

Danese, L. ;

Davies, R. D. ;

Davis, R. J. ;

De Angelis, L. ;

De Gasperis, G. C. ;

De La Fuente, L. ;

De Rosa, A. ;

De Zotti, G. ;

Falvella, M. C. ;

Ferrari, F. ;

Ferretti, R. ;

Figini, L. ;

Fogliani, S. ;

Franceschet, C. ;

Franceschi, E. ;

Gaier, T. ;

Garavaglia, S. ;

Gomez, F. ;

Gorski, K. ;

Gregorio, A. ;

Guzzi, P. ;

Herreros, J. M. ;

Hildebrandt, S. R. ;

Hoyland, R. ;

Hughes, N. .

ASTRONOMY & ASTROPHYSICS, 2010, 520

[3] Beam distortion effects on anisotropy measurements of the cosmic microwave background [J].

Burigana, C ;

Maino, D ;

Mandolesi, N ;

Pierpaoli, E ;

Bersanelli, M ;

Danese, L ;

Attolini, MR .

ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES, 1998, 130 (03) :551-560

[4] On the dipole straylight contamination in spinning space missions dedicated to cosmic microwave background anisotropy [J].

Burigana, C. ;

Gruppuso, A. ;

Finelli, F. .

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2006, 371 (04) :1570-1586

[5] Trade-off between angular resolution and straylight contamination in the PLANCK Low Frequency Instrument [J].

Burigana, C ;

Sandri, M ;

Villa, F ;

Maino, D ;

Paladini, R ;

Baccigalupi, C ;

Bersanelli, M ;

Mandolesi, N .

ASTRONOMY & ASTROPHYSICS, 2004, 428 (01) :311-U53

[6] PLANCK LFI:: Comparison between Galaxy Straylight Contamination and other systematic effects [J].

Burigana, C ;

Maino, D ;

Górski, KM ;

Mandolesi, N ;

Bersanelli, M ;

Villa, F ;

Valenziano, L ;

Wandelt, BD ;

Maltoni, M ;

Hivon, E .

ASTRONOMY & ASTROPHYSICS, 2001, 373 (01) :345-358

[7]

Clarricoats P. J., 1984, Corrugated Horns for Microwave Antennas

[8]

DARCANGELO O, 2010, JINST, V4, P12007

[9]

DUBRUEL D, 2000, ESA C P

[10]

DUPAC X, PLANCKPSO2006030

← 1 2 3 →