Share Email Print
cover

Proceedings Paper

Opto-mechanical performances of slewing mirror space telescope for GRB detection
Author(s): Ki-Beom Ahn; Soomin Jeong; Sug-Whan Kim; Jiwoo Nam; Pisin Chen; Hyeunseok Choi; Yeon Ju Choi; Bruce Grossan; Indra Herman; Ming-Huey A. Huang; Aera Jung; Jieun Kim; Yewon Kim; Jik Lee; Heuijin Lim; Eric Linder; Tsung-Che Liu; Kyoungwook Min; Gowoon Na; Koo Hyun Nam; Michel I. Panasyuk; George Smoot; Young D. Suh; Sergey Svertilov; Nikolay Vedenkin; Ivan Yashin; Myungheh Cho; Il H. Park
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

The UFFO (Ultra-Fast Flash Observatory) Pathfinder is a space instrument onboard the Lomonosov satellite scheduled to be launched in November 2011. It is designed for extremely fast observation of optical counterparts of Gamma Ray Bursts (GRBs). It consists of two subsystems; i) UBAT (UFFO Burst Alert & Trigger Telescope) and ii) SMT (Slewing Mirror Telescope). This study is concerned with SMT opto-mechanical subsystem design and optical performance test. SMT is a F/11.4 Ritchey-Chretien type telescope benefited from compact design with a short optical tube assembly for the given focal length of 1,140 mm. SMT is designed to operate over a wide range of wavelength between 200 nm and 650 nm and has 17 arcmin FOV (Field of View), providing 4 arcsec in detector pixel resolution. The main detector is 256 x 256 ICCD (Intensified Charge-Coupled Device) of 22.2μm in pixel size. This SMT design offers good imaging performance including 0.77 in MTF at Nyquist frequency of 22.52 /mm and 2.7 μm in RMS spot radius. The primary (M1) and secondary (M2) mirror are hyperbolic surfaces and were manufactured within 1/50 waves (He-Ne, 632.8nm) in RMS surface error. After completion of the initial integration, the SMT opto-mechanical subsystem reached to the system wavefront error better than 1/10 waves in room temperature. We then tested the opto-mechanical performances under thermal cycling and vibration. In this study, we report the SMT subsystem design solution and integration together with thermal and vibration test results.

Paper Details

Date Published: 21 September 2011
PDF: 7 pages
Proc. SPIE 8167, Optical Design and Engineering IV, 81671C (21 September 2011); doi: 10.1117/12.896499
Show Author Affiliations
Ki-Beom Ahn, Yonsei Univ. (Korea, Republic of)
Soomin Jeong, Ewha Womans Univ. (Korea, Republic of)
Sug-Whan Kim, Yonsei Univ. (Korea, Republic of)
Jiwoo Nam, National Taiwan Univ. (Taiwan)
Pisin Chen, National Taiwan Univ. (Taiwan)
Hyeunseok Choi, Korea Institute of Industrial Technology (Korea, Republic of)
Yeon Ju Choi, KAIST (Korea, Republic of)
Bruce Grossan, Univ. of California, Berkeley (United States)
Indra Herman, KAIST (Korea, Republic of)
Ming-Huey A. Huang, National United Univ. (Taiwan)
Aera Jung, Ewha Womans Univ. (Korea, Republic of)
Jieun Kim, Ewha Womans Univ. (Korea, Republic of)
Yewon Kim, Ewha Womans Univ. (Korea, Republic of)
Jik Lee, Ewha Womans Univ. (Korea, Republic of)
Heuijin Lim, Ewha Womans Univ. (Korea, Republic of)
Eric Linder, Ewha Womans Univ. (Korea, Republic of)
Univ. of California, Berkeley (United States)
Tsung-Che Liu, National Taiwan Univ. (Taiwan)
Kyoungwook Min, KAIST (Korea, Republic of)
Gowoon Na, Ewha Womans Univ. (Korea, Republic of)
Koo Hyun Nam, Ewha Womans Univ. (Korea, Republic of)
Michel I. Panasyuk, Lomonosov Moscow State Univ. (Russian Federation)
George Smoot, Ewha Womans Univ. (Korea, Republic of)
Univ. of California, Berkeley (United States)
Young D. Suh, KAIST (Korea, Republic of)
Sergey Svertilov, Lomonosov Moscow State Univ. (Russian Federation)
Nikolay Vedenkin, Lomonosov Moscow State Univ. (Russian Federation)
Ivan Yashin, Lomonosov Moscow State Univ. (Russian Federation)
Myungheh Cho, Ewha Womans Univ. (Korea, Republic of)
Il H. Park, Ewha Womans Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 8167:
Optical Design and Engineering IV
Jean-Luc M. Tissot; Laurent Mazuray; Rolf Wartmann; Jeffrey M. Raynor; Andrew Wood, Editor(s)

© SPIE. Terms of Use
Back to Top