Prospects for high energy light isotope measurements on balloons

Scott P. Wakely, S. Coutu, D. Müller, J. Musser, S. Nutter, N. H. Park, M. Schubnell, G. Tarlé

Research output: Contribution to journalConference article

Abstract

A number of recent 'anomalies' detected in the cosmic-ray flux have underscored the importance of improving our understanding of cosmic-ray source and propagation processes. To this end, one of the key observational tasks is obtaining measurements of the relative abundances of the light cosmic-ray isotopes at relativistic energies (above -1 GeV/n), where existing information is extremely scarce. In particular, measurements of the clock isotope 10Be for a range of relativistic time dilations are urgently needed. However, such measurements present a severe experimental challenge. The required mass resolution can only be reached if magnetic spectrometers with strong magnetic fields are equipped with state-of-the-art high-resolution trackers, and combined with devices such as ring-imaging Cherenkov counters for precise velocity measurements. Additionally, large exposure factors are needed for good statistical accuracy. In this presentation, we will briefly review the goals and challenges of such measurements, and describe a new proposed instrument, HELIX (the High-Energy Light Isotope eXperiment), that is designed to meet these challenges on a long-duration balloon flight.

Original languageEnglish (US)
Article number682
JournalProceedings of Science
Volume30-July-2015
StatePublished - Jan 1 2015
Event34th International Cosmic Ray Conference, ICRC 2015 - The Hague, Netherlands
Duration: Jul 30 2015Aug 6 2015

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balloons
isotopes
cosmic rays
balloon flight
energy
velocity measurement
clocks
counters
spectrometers
anomalies
propagation
rings
high resolution
magnetic fields

All Science Journal Classification (ASJC) codes

  • General

Cite this

Wakely, S. P., Coutu, S., Müller, D., Musser, J., Nutter, S., Park, N. H., ... Tarlé, G. (2015). Prospects for high energy light isotope measurements on balloons. Proceedings of Science, 30-July-2015, [682].
Wakely, Scott P. ; Coutu, S. ; Müller, D. ; Musser, J. ; Nutter, S. ; Park, N. H. ; Schubnell, M. ; Tarlé, G. / Prospects for high energy light isotope measurements on balloons. In: Proceedings of Science. 2015 ; Vol. 30-July-2015.
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Wakely, SP, Coutu, S, Müller, D, Musser, J, Nutter, S, Park, NH, Schubnell, M & Tarlé, G 2015, 'Prospects for high energy light isotope measurements on balloons', Proceedings of Science, vol. 30-July-2015, 682.

Prospects for high energy light isotope measurements on balloons. / Wakely, Scott P.; Coutu, S.; Müller, D.; Musser, J.; Nutter, S.; Park, N. H.; Schubnell, M.; Tarlé, G.

In: Proceedings of Science, Vol. 30-July-2015, 682, 01.01.2015.

Research output: Contribution to journalConference article

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AU - Wakely, Scott P.

AU - Coutu, S.

AU - Müller, D.

AU - Musser, J.

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AU - Schubnell, M.

AU - Tarlé, G.

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N2 - A number of recent 'anomalies' detected in the cosmic-ray flux have underscored the importance of improving our understanding of cosmic-ray source and propagation processes. To this end, one of the key observational tasks is obtaining measurements of the relative abundances of the light cosmic-ray isotopes at relativistic energies (above -1 GeV/n), where existing information is extremely scarce. In particular, measurements of the clock isotope 10Be for a range of relativistic time dilations are urgently needed. However, such measurements present a severe experimental challenge. The required mass resolution can only be reached if magnetic spectrometers with strong magnetic fields are equipped with state-of-the-art high-resolution trackers, and combined with devices such as ring-imaging Cherenkov counters for precise velocity measurements. Additionally, large exposure factors are needed for good statistical accuracy. In this presentation, we will briefly review the goals and challenges of such measurements, and describe a new proposed instrument, HELIX (the High-Energy Light Isotope eXperiment), that is designed to meet these challenges on a long-duration balloon flight.

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Wakely SP, Coutu S, Müller D, Musser J, Nutter S, Park NH et al. Prospects for high energy light isotope measurements on balloons. Proceedings of Science. 2015 Jan 1;30-July-2015. 682.