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The PILOT optical alignment for its first flight

Mot, B., Longval, Y., Bernard, J.-Ph., Ade, Peter, André, Y., Aumont, J., Bautista, L., Bray, N., deBernardis, P., Boulade, O., Bousquet, F., Bouzit, M., Buttice, V., Caillat, A., Chaigneau, M., Coudournac, C., Crane, B., Douchin, F., Doumayrou, E., Dubois, J.-P., Engel, C., Etcheto, P., Gélot, P., Griffin, M., Foenard, G., Grabarnik, S., Hargrave, Peter, Hughes, A., Laureijs, R., Lepennec, Y., Leriche, B., Maestre, S., Maffei, B., Mangilli, A., Martignac, J., Marty, C., Marty, W., Masi, S., Mirc, F., Misawa, R., Montel, J., Montier, L., Narbonne, J., Nicot, J-M., Pajot, F., Parot, G., Pérot, E., Pimentao, J., Pisano, Giampaolo, Ponthieu, N., Ristorcelli, I., Rodriguez, L., Roudil, G., Saccoccio, M., Salatino, M., Savini, G., Stever, S., Simonella, O., Tapie, P., Tauber, J., Tibbs, C., Torre, J.-P. and Tucker, Carole 2017. The PILOT optical alignment for its first flight. CEAS Space Journal 9 (4) , pp. 459-471. 10.1007/s12567-017-0159-3

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Abstract

PILOT is a balloon-borne astronomy experiment designed to study the polarization of dust emission in the diffuse interstellar medium in our Galaxy at wavelengths 240 and 550 µm with an angular resolution of about two arc-min. PILOT optics is composed of an off-axis Gregorian telescope and a refractive re-imager system. All these optical elements, except the primary mirror, are in a cryostat cooled to 3K. We used optical and 3D measurements combined with thermo-elastic modeling to perform the optical alignment. This paper describes the system analysis, the alignment procedure, and finally the performances obtained during the first flight in September 2015

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Publisher: Springer
ISSN: 1868-2502
Date of Acceptance: 30 May 2017
Last Modified: 28 Nov 2018 22:34
URI: http://orca-mwe.cf.ac.uk/id/eprint/107725

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