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Proceedings Paper

The DUAL mission concept
Author(s): Peter von Ballmoos; Jose Alvarez; Nicolas Barriere; Steve Boggs; Andrei Bykov; Juan Manuel Del Cura Velayos; Filippo Frontera; Lorraine Hanlon; Margarita Hernanz; Emmanuel Hinglais; Jordi Isern; Pierre Jean; Jürgen Knödlseder; Lucien Kuiper; Mark Leising; Benoît Pirard; Jean-Pierre Prost; Rui da Silva; Tadayuki Takahashi; John Tomsick; Roland Walter; Andreas Zoglauer
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Paper Abstract

DUAL will study the origin and evolution of the elements and explores new frontiers of physics: extreme energies that drive powerful stellar explosions and accelerate particles to macroscopic energies; extreme densities that modify the laws of physics around the most compact objects known; and extreme fields that influence matter in a way that is unknown on Earth. The variability of these extreme objects requires continuous all-sky coverage, while detailed study demands an improvement in sensitivity over previous technologies by at least an order of magnitude. The DUAL payload is composed of an All-Sky Compton Imager (ASCI), and two optical modules, the Laue-Lens Optic (LLO) and the Coded-Mask Optic (CMO). The ASCI serves dual roles simultaneously, both as an optimal focal-plane sensor for deep observations with the optical modules and as a sensitive true all-sky telescope in its own right for all-sky surveys and monitoring. While the optical modules are located on the main satellite, the All-Sky Compton Imager is situated on a deployable structure at a distance of 30 m from the satellite. This configuration not only permits to maintain the less massive payload at the focal distance, it also greatly reduces the spacecraft-induced detector background, and, above all it provides ASCI with a continuous all-sky exposure.

Paper Details

Date Published: 13 September 2011
PDF: 15 pages
Proc. SPIE 8145, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVII, 81450E (13 September 2011); doi: 10.1117/12.895419
Show Author Affiliations
Peter von Ballmoos, Institut de Recherche en Astrophysique et Planétologie (France)
Jose Alvarez, Consejo Superior de Investigaciones Científicas (Spain)
Nicolas Barriere, Univ. of California, Berkeley (United States)
Steve Boggs, Univ. of California, Berkeley (United States)
Andrei Bykov, Ioffe Physical-Technical Institute (Russian Federation)
Juan Manuel Del Cura Velayos, SENER Ingeniería y Sistemas S.A. (Spain)
Filippo Frontera, Univ. di Ferrara (Italy)
Lorraine Hanlon, Univ. College Dublin (Ireland)
Margarita Hernanz, Consejo Superior de Investigaciones Científicas (Spain)
Emmanuel Hinglais, Ctr. National d'Études Spatiales (France)
Jordi Isern, Consejo Superior de Investigaciones Científicas (Spain)
Pierre Jean, Institut de Recherche en Astrophysique et Planétologie (France)
Jürgen Knödlseder, Institut de Recherche en Astrophysique et Planétologie (France)
Lucien Kuiper, Netherland Institute for Space Research (Netherlands)
Mark Leising, Clemson Univ. (United States)
Benoît Pirard, Canberra (France)
Jean-Pierre Prost, Thales Alenia Space (France)
Rui da Silva, Univ. de Coimbra (Portugal)
Tadayuki Takahashi, Japan Aerospace Exploration Agency (Japan)
John Tomsick, Univ. of California, Berkeley (United States)
Roland Walter, Integral Science Data Ctr. (Switzerland)
Andreas Zoglauer, Univ. of California, Berkeley (United States)


Published in SPIE Proceedings Vol. 8145:
UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVII
Oswald H. Siegmund, Editor(s)

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