UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A Next-Generation Solar γ-ray Spectroscopic Imaging Instrument Concept

Ryan, Daniel F; Musset, Sophie; Reid, Hamish AS; Krucker, Säm; Battaglia, Andrea F; Bréelle, Eric; Chapron, Claude; ... Volpara, Anna; + view all (2023) The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A Next-Generation Solar γ-ray Spectroscopic Imaging Instrument Concept. Aerospace , 10 (12) , Article 985. 10.3390/aerospace10120985. Green open access

[thumbnail of aerospace-10-00985.pdf]
Preview
PDF
aerospace-10-00985.pdf - Published Version

Download (5MB) | Preview

Abstract

Models of particle acceleration in solar eruptive events suggest that roughly equal energy may go into accelerating electrons and ions. However, while previous solar X-ray spectroscopic imagers have transformed our understanding of electron acceleration, only one resolved image of γ-ray emission from solar accelerated ions has ever been produced. This paper outlines a new satellite instrument concept—the large imaging spectrometer for solar accelerated nuclei (LISSAN)—with the capability not only to observe hundreds of events over its lifetime, but also to capture multiple images per event, thereby imaging the dynamics of solar accelerated ions for the first time. LISSAN provides spectroscopic imaging at photon energies of 40 keV–100 MeV on timescales of ≲10 s with greater sensitivity and imaging capability than its predecessors. This is achieved by deploying high-resolution scintillator detectors and indirect Fourier imaging techniques. LISSAN is suitable for inclusion in a multi-instrument platform such as an ESA M-class mission or as a smaller standalone mission. Without the observations that LISSAN can provide, our understanding of solar particle acceleration, and hence the space weather events with which it is often associated, cannot be complete.

Type: Article
Title: The Large Imaging Spectrometer for Solar Accelerated Nuclei (LISSAN): A Next-Generation Solar γ-ray Spectroscopic Imaging Instrument Concept
Open access status: An open access version is available from UCL Discovery
DOI: 10.3390/aerospace10120985
Publisher version: https://doi.org/10.3390/aerospace10120985
Language: English
Additional information: © 2023 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Keywords: particle acceleration; magnetic reconnection; instrumentation; techniques: imaging spectroscopy; corona; coronal mass ejections (CMEs); flares; X-rays; gamma rays
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics
URI: https://discovery.ucl.ac.uk/id/eprint/10183358
Downloads since deposit
Loading...
7Downloads
Download activity - last month
Loading...
Download activity - last 12 months
Loading...
Downloads by country - last 12 months
1.Bulgaria
3
2.United States
1
3.Russian Federation
1

Archive Staff Only

View Item View Item