Share Email Print
cover

Proceedings Paper

Wideband spectrometer for HIFI-FIRST
Author(s): Rudolf T. Schieder; Oliver Siebertz; Frank Schloeder; Csaba Gal; Juergen Stutzki; Paul Hartogh; Vincenzo Natale
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The wideband acousto-optical spectrometer (WBS) for HIFI- FIRST is comprised of two array-AOS with 4 times 1 GHz bands each. There are some advantages to this design, the most important one is that relative frequency and amplitude variations between the 4 bands are rather unlikely. This is demonstrated by laboratory tests, which verify also that fairly slow beam-switching at 0.5 Hz may be a sufficient chop speed for HIFI. The performance of array-AOS has also been demonstrated during measurements at ground-based observatories. WBS consists of three independent units, one IF-, one optics-, and one electronics-unit. Some of the details of the WBS design are described, and the present performance estimates are given.

Paper Details

Date Published: 28 July 2000
PDF: 12 pages
Proc. SPIE 4013, UV, Optical, and IR Space Telescopes and Instruments, (28 July 2000); doi: 10.1117/12.393988
Show Author Affiliations
Rudolf T. Schieder, Univ. Koeln (Germany)
Oliver Siebertz, Univ. Koeln (Germany)
Frank Schloeder, Univ. Koeln (Germany)
Csaba Gal, Univ. Koeln (Germany)
Juergen Stutzki, Univ. Koeln (Germany)
Paul Hartogh, Max-Planck-Institut fuer Aeronomie (Germany)
Vincenzo Natale, CAISMI-CNR (Italy)


Published in SPIE Proceedings Vol. 4013:
UV, Optical, and IR Space Telescopes and Instruments
James B. Breckinridge; Peter Jakobsen, Editor(s)

© SPIE. Terms of Use
Back to Top