PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Cosmic-Ray Physics (Direct, CRD)
Science Objectives and Goals of the TIGERISS mission
W.V. Zober*, B.F. Rauch, R.F. Borda, R.G. Bose, D.L. Braun, J. Buckley, J. Calderon, N.W. Cannady, R. Caputo, S. Coutu, G.A. De Nolfo, P. Ghosh, S. Jones, C. Kierans, J. Krizmanic, W. Labrador, L. Lisalda, J.V. Martins, M.P. McPherson, E. Meyer, J. Mitchell, J.W. Mitchell, S.A.I. Mognet, A. Moiseev, S. Nutter, N.E. Osborn, I.M. Pastrana, H. Salmani, M. Sasaki, G.E. Simburger, S. Smith, H.A. Tolentino and D. Washingtonet al. (click to show)
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Pre-published on: August 18, 2023
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TIGERISS, the Trans-Iron Galactic Element Recorder for the International Space Station, is an Ultra-Heavy Galactic Cosmic Ray (UHGCR) detector that is planned to be launched to the ISS in 2026. TIGERISS is a continuation of the TIGER and SuperTIGER mission heritage that will be able to measure the elemental abundances from $_5$B to $_{82}$Pb that exceed an energy threshold of 350 MeV/nucleon for an acrylic Cherenkov detector used on the instrument.. With a minimum geometry factor of 1.3 m$^{2}$ sr, TIGERISS, in less than one year of operation, will match the statistics seen by the 55 day SuperTIGER-1 balloon flight without the need for atmospheric corrections. By using SiPMs instead of PMTs, TIGERISS will improve upon SuperTIGER’s charge resolution providing single-element peak resolution over its full dynamic range. All of these factors will allow us to provide the first single-element measurements through the lanthanides and up to lead within the interstellar medium, allowing us to test a wide range of source and propagation models for cosmic-ray origins and acceleration. With TIGERISS being able to cover the entirety of the s-process, r-process, and rp-processes of nucleosynthesis, we will add to the wider multi-messenger effort to determine the relative contributions of supernovae (SN) and Neutron Star Merger (NSM) events.
DOI: https://doi.org/10.22323/1.444.0144
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