13 September 2011 The DUAL mission concept
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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.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Peter von Ballmoos, Peter von Ballmoos, Jose Alvarez, Jose Alvarez, Nicolas Barriere, Nicolas Barriere, Steve Boggs, Steve Boggs, Andrei Bykov, Andrei Bykov, Juan Manuel Del Cura Velayos, Juan Manuel Del Cura Velayos, Filippo Frontera, Filippo Frontera, Lorraine Hanlon, Lorraine Hanlon, Margarita Hernanz, Margarita Hernanz, Emmanuel Hinglais, Emmanuel Hinglais, Jordi Isern, Jordi Isern, Pierre Jean, Pierre Jean, Jürgen Knödlseder, Jürgen Knödlseder, Lucien Kuiper, Lucien Kuiper, Mark Leising, Mark Leising, Benoît Pirard, Benoît Pirard, Jean-Pierre Prost, Jean-Pierre Prost, Rui da Silva, Rui da Silva, Tadayuki Takahashi, Tadayuki Takahashi, John Tomsick, John Tomsick, Roland Walter, Roland Walter, Andreas Zoglauer, Andreas Zoglauer, } "The DUAL mission concept", Proc. SPIE 8145, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XVII, 81450E (13 September 2011); doi: 10.1117/12.895419; https://doi.org/10.1117/12.895419
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