The High Energy Light Isotope eXperiment program of direct cosmic-ray studies
Abstract HELIX is a new NASA-sponsored instrument aimed at measuring the spectra and composition of light cosmic-ray isotopes from hydrogen to neon nuclei, in particular the clock isotopes 10 Be (radioactive, with 1.4 Myr lifetime) and 9 Be (stable). The latter are unique markers of the production a...
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Online Access: | http://dx.doi.org/10.1088/1748-0221/19/01/c01025 https://iopscience.iop.org/article/10.1088/1748-0221/19/01/C01025 https://iopscience.iop.org/article/10.1088/1748-0221/19/01/C01025/pdf |
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crioppubl:10.1088/1748-0221/19/01/c01025 2024-06-02T07:58:38+00:00 The High Energy Light Isotope eXperiment program of direct cosmic-ray studies Coutu, S. Allison, P.S. Baiocchi, M. Beatty, J.J. Beaufore, L. Calderón, D.H. Castano, A.G. Chen, Y. Green, N. Hanna, D. Jeon, H.B. Klein, S.B. Kunkler, B. Lang, M. Mbarek, R. McBride, K. Mognet, S.I. Musser, J. Nutter, S. O'Brien, S. Park, N. Powledge, K.M. Sakai, K. Tabata, M. Tarlé, G. Tuttle, J.M. Visser, G. Wakely, S.P. Yu, M. 2024 http://dx.doi.org/10.1088/1748-0221/19/01/c01025 https://iopscience.iop.org/article/10.1088/1748-0221/19/01/C01025 https://iopscience.iop.org/article/10.1088/1748-0221/19/01/C01025/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0/ https://iopscience.iop.org/info/page/text-and-data-mining Journal of Instrumentation volume 19, issue 01, page C01025 ISSN 1748-0221 journal-article 2024 crioppubl https://doi.org/10.1088/1748-0221/19/01/c01025 2024-05-07T14:06:35Z Abstract HELIX is a new NASA-sponsored instrument aimed at measuring the spectra and composition of light cosmic-ray isotopes from hydrogen to neon nuclei, in particular the clock isotopes 10 Be (radioactive, with 1.4 Myr lifetime) and 9 Be (stable). The latter are unique markers of the production and Galactic propagation of secondary cosmic-ray nuclei, and are needed to resolve such important mysteries as the proportion of secondary positrons in the excess of antimatter observed by the AMS-02 experiment. By using a combination of a 1 T superconducting magnet spectrometer (with drift-chamber tracker) with a high-resolution time-of-flight detector system and ring-imaging Cherenkov detector, mass-resolved isotope measurements of light cosmic-ray nuclei will be possible up to 3 GeV/n in a first stratospheric balloon flight from Kiruna, Sweden to northern Canada, anticipated to take place in early summer 2024. An eventual longer Antarctic balloon flight of HELIX will yield measurements up to 10 GeV/n, sampling production from a larger volume of the Galaxy extending into the halo. We review the instrument design, testing, status and scientific prospects. Article in Journal/Newspaper Antarc* Antarctic Kiruna IOP Publishing Antarctic Canada Kiruna Journal of Instrumentation 19 01 C01025 |
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IOP Publishing |
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Abstract HELIX is a new NASA-sponsored instrument aimed at measuring the spectra and composition of light cosmic-ray isotopes from hydrogen to neon nuclei, in particular the clock isotopes 10 Be (radioactive, with 1.4 Myr lifetime) and 9 Be (stable). The latter are unique markers of the production and Galactic propagation of secondary cosmic-ray nuclei, and are needed to resolve such important mysteries as the proportion of secondary positrons in the excess of antimatter observed by the AMS-02 experiment. By using a combination of a 1 T superconducting magnet spectrometer (with drift-chamber tracker) with a high-resolution time-of-flight detector system and ring-imaging Cherenkov detector, mass-resolved isotope measurements of light cosmic-ray nuclei will be possible up to 3 GeV/n in a first stratospheric balloon flight from Kiruna, Sweden to northern Canada, anticipated to take place in early summer 2024. An eventual longer Antarctic balloon flight of HELIX will yield measurements up to 10 GeV/n, sampling production from a larger volume of the Galaxy extending into the halo. We review the instrument design, testing, status and scientific prospects. |
format |
Article in Journal/Newspaper |
author |
Coutu, S. Allison, P.S. Baiocchi, M. Beatty, J.J. Beaufore, L. Calderón, D.H. Castano, A.G. Chen, Y. Green, N. Hanna, D. Jeon, H.B. Klein, S.B. Kunkler, B. Lang, M. Mbarek, R. McBride, K. Mognet, S.I. Musser, J. Nutter, S. O'Brien, S. Park, N. Powledge, K.M. Sakai, K. Tabata, M. Tarlé, G. Tuttle, J.M. Visser, G. Wakely, S.P. Yu, M. |
spellingShingle |
Coutu, S. Allison, P.S. Baiocchi, M. Beatty, J.J. Beaufore, L. Calderón, D.H. Castano, A.G. Chen, Y. Green, N. Hanna, D. Jeon, H.B. Klein, S.B. Kunkler, B. Lang, M. Mbarek, R. McBride, K. Mognet, S.I. Musser, J. Nutter, S. O'Brien, S. Park, N. Powledge, K.M. Sakai, K. Tabata, M. Tarlé, G. Tuttle, J.M. Visser, G. Wakely, S.P. Yu, M. The High Energy Light Isotope eXperiment program of direct cosmic-ray studies |
author_facet |
Coutu, S. Allison, P.S. Baiocchi, M. Beatty, J.J. Beaufore, L. Calderón, D.H. Castano, A.G. Chen, Y. Green, N. Hanna, D. Jeon, H.B. Klein, S.B. Kunkler, B. Lang, M. Mbarek, R. McBride, K. Mognet, S.I. Musser, J. Nutter, S. O'Brien, S. Park, N. Powledge, K.M. Sakai, K. Tabata, M. Tarlé, G. Tuttle, J.M. Visser, G. Wakely, S.P. Yu, M. |
author_sort |
Coutu, S. |
title |
The High Energy Light Isotope eXperiment program of direct cosmic-ray studies |
title_short |
The High Energy Light Isotope eXperiment program of direct cosmic-ray studies |
title_full |
The High Energy Light Isotope eXperiment program of direct cosmic-ray studies |
title_fullStr |
The High Energy Light Isotope eXperiment program of direct cosmic-ray studies |
title_full_unstemmed |
The High Energy Light Isotope eXperiment program of direct cosmic-ray studies |
title_sort |
high energy light isotope experiment program of direct cosmic-ray studies |
publisher |
IOP Publishing |
publishDate |
2024 |
url |
http://dx.doi.org/10.1088/1748-0221/19/01/c01025 https://iopscience.iop.org/article/10.1088/1748-0221/19/01/C01025 https://iopscience.iop.org/article/10.1088/1748-0221/19/01/C01025/pdf |
geographic |
Antarctic Canada Kiruna |
geographic_facet |
Antarctic Canada Kiruna |
genre |
Antarc* Antarctic Kiruna |
genre_facet |
Antarc* Antarctic Kiruna |
op_source |
Journal of Instrumentation volume 19, issue 01, page C01025 ISSN 1748-0221 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-0221/19/01/c01025 |
container_title |
Journal of Instrumentation |
container_volume |
19 |
container_issue |
01 |
container_start_page |
C01025 |
_version_ |
1800742060729303040 |