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arxiv: 1407.1881 · v1 · pith:NL57L2NUnew · submitted 2014-07-07 · 🌌 astro-ph.IM · physics.ins-det

Design and construction of a carbon fiber gondola for the SPIDER balloon-borne telescope

J. D. Soler (1 , 2) , P. A. R. Ade (3) , M. Amiri (4) , S. J. Benton (5) , J. J. Bock (6) , J. R. Bond (7 , 8)
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S. A. Bryan (10) C. Chiang (11 13) C. C. Contaldi (14) B. P. Crill (6 9) O. P. Dor\'e (6 M. Farhang (7) J. P. Filippini (6) L. M. Fissel (2) A. A. Fraisse (11) A. E. Gambrel (11) N. N. Gandilo (2) S. Golwala (6) J. E. Gudmundsson (11) M. Halpern (4 M. Hasselfield (4 11) G. C. Hilton (15) W. A. Holmes (9) V. V. Hristov (6) K. D. Irwin (15) W. C. Jones (11) Z. D. Kermish (11) C. L. Kuo (12) C. J. MacTavish (7) P. V. Mason (6) K. G. Megerian (9) L. Moncelsi (6) J. M. Nagy (10) C. B. Netterfield (2 5 R. O'Brient (6 A. S. Rahlin (11) C. D. Reintsema (15) J. E. Ruhl (10) M. C. Runyan (9) J. A. Shariff (2) A. Trangsrud (9) C. Tucker (3) R. S. Tucker (6) A. D. Turner (9) A. C. Weber (9) D. V. Wiebe (4) E. Y. Young (11) ((1) Institute d'Astrophysique Spatiale. CNRS. France (2) Department of Astronomy Astrophysics. University of Toronto. Canada (3) School of Physics & Astronomy. Cardiff University. UK (4) Department of Physics & Astronomy. University of British Columbia. Canada (5) Department of Physics. University of Toronto. Canada (6) Department of Physics. California Institute of Technology. USA (7) CITA. University of Toronto. Canada (8) Canadian Institute for Advanced Research. Canada (9) Jet Propulsion Laboratory (10) Department of Physics. Case Western Reserve University. USA (11) Department of Physics. Princeton University. USA (12) Department of Physics. Stanford University. USA (13) School of Mathematics Statistics & Computer Science. University of KwaZulu-Natal. South Africa (14) Theoretical Physics Blackett Laboratory. Imperial College. UK (15) National Institute of Standards Technology. USA)
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classification 🌌 astro-ph.IM physics.ins-det
keywords balloon-bornegondolaspideraluminumcarbondesignedfiberconstruction
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We introduce the light-weight carbon fiber and aluminum gondola designed for the SPIDER balloon-borne telescope. SPIDER is designed to measure the polarization of the Cosmic Microwave Background radiation with unprecedented sensitivity and control of systematics in search of the imprint of inflation: a period of exponential expansion in the early Universe. The requirements of this balloon-borne instrument put tight constrains on the mass budget of the payload. The SPIDER gondola is designed to house the experiment and guarantee its operational and structural integrity during its balloon-borne flight, while using less than 10% of the total mass of the payload. We present a construction method for the gondola based on carbon fiber reinforced polymer tubes with aluminum inserts and aluminum multi-tube joints. We describe the validation of the model through Finite Element Analysis and mechanical tests.

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