Share Email Print
cover

Proceedings Paper

Balloon-borne hard x-ray spectrometer for flare observations
Author(s): Ken Kobayashi; Saku Tsuneta; Tomonori Tamura; Kazuyoshi Kumagai; Yukio Katsukawa; Masahito Kubo; Takamasa Yamagami; Yoshitaka Saito
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

We present the design and initial flight results of a balloon-borne hard X-ray detector system for observing high-resolution spectra of solar flares. The instrument is designed to achieve a 3 keV energy resolution over the energy range of 15-120 keV. The instrument uses sixteen 10×10×0.5mm cadmium telluride (CdTe) detectors with indium electrodes that act as Schottky barriers. Pre-flight tests confirmed that all detectors exceeded the target 3 keV resolution. The detector system is designed to optimize radiative cooling in order to achieve the operating temperature of 0°C without refrigeration mechanisms. The first flight took place on August 29, 2001 and while no major flares were observed, the instrument operation was verified and a detector temperature of -13° C was achieved. The second flight took place on May 24, 1974 and during the 8 hours of level flight at an altitude of 41km, we succeeded in observing a class M1.1 solar flare.

Paper Details

Date Published: 11 March 2003
PDF: 10 pages
Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461284
Show Author Affiliations
Ken Kobayashi, Univ. of Tokyo (Japan)
Saku Tsuneta, National Astronomical Observatory of Japan (Japan)
Tomonori Tamura, National Astronomical Observatory of Japan (Japan)
Kazuyoshi Kumagai, National Astronomical Observatory of Japan (Japan)
Yukio Katsukawa, Univ. of Tokyo (Japan)
Masahito Kubo, Univ. of Tokyo (Japan)
Takamasa Yamagami, Institute of Space and Astronautical Science (Japan)
Yoshitaka Saito, Institute of Space and Astronautical Science (Japan)


Published in SPIE Proceedings Vol. 4851:
X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
Joachim E. Truemper; Harvey D. Tananbaum, Editor(s)

© SPIE. Terms of Use
Back to Top