Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56
In March 2016 accelerator-based experiments colliding protons (0.4 and 0.8 GeV), helium (0.4 AGeV) and iron (0.4 and 0.8 AGeV) on thick aluminum targets with surface densities of 20, 40, and 60 g/cm2 were performed at the National Aeronautics and Space Administration Space Radiation Laboratory (NSRL...
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2017-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://doi.org/10.1051/epjconf/201715307029 |
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doaj-a9be5dd8de74458a8016edf09461e2b32021-08-02T05:47:13ZengEDP SciencesEPJ Web of Conferences2100-014X2017-01-011530702910.1051/epjconf/201715307029epjconf_icrs2017_07029Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56Castellanos Luis A.0McGirl Natalie A.1Srikrishna Ashwin P.2Heilbronn Lawrence H.3Tessa Chiara La4Rusek Adam5Sivertz Michael6Blattnig Steve7Clowdsley Martha8Slaba Tony9Zeitlin Cary10Department of Nuclear Engineering, University of TennesseeDepartment of Nuclear Engineering, University of TennesseeDepartment of Nuclear Engineering, University of TennesseeDepartment of Nuclear Engineering, University of TennesseeNASA Space Radiation Laboratory, Brookhaven National LaboratoryNASA Space Radiation Laboratory, Brookhaven National LaboratoryNASA Space Radiation Laboratory, Brookhaven National LaboratoryNational Aeronautics and Space Administration, Langley Research CenterNational Aeronautics and Space Administration, Langley Research CenterNational Aeronautics and Space Administration, Langley Research CenterLockheed Martin, Information Systems and Global SolutionsIn March 2016 accelerator-based experiments colliding protons (0.4 and 0.8 GeV), helium (0.4 AGeV) and iron (0.4 and 0.8 AGeV) on thick aluminum targets with surface densities of 20, 40, and 60 g/cm2 were performed at the National Aeronautics and Space Administration Space Radiation Laboratory (NSRL) at Brookhaven National Laboratory. Two targets were utilized in each experimental configuration. Hydrogen and helium ions were detected using organic liquid scintillators in conjunction with thin plastic scintillators at 10°, 30°, 45°, 60°, 80°, and 135° from beam axis. Time-of-flight techniques and pulse shape discrimination were used to identify light ion species in order to generate double differential energy spectra of the light ion fragments. Comparisons of these measured yields were compared with Monte Carlo calculations generated by MCNP6. These yields will be used to quantify uncertainty in radiation transport codes utilized in risk assessment for spaceflight missions with prolonged exposures to galactic cosmic rays.https://doi.org/10.1051/epjconf/201715307029 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Castellanos Luis A. McGirl Natalie A. Srikrishna Ashwin P. Heilbronn Lawrence H. Tessa Chiara La Rusek Adam Sivertz Michael Blattnig Steve Clowdsley Martha Slaba Tony Zeitlin Cary |
| spellingShingle |
Castellanos Luis A. McGirl Natalie A. Srikrishna Ashwin P. Heilbronn Lawrence H. Tessa Chiara La Rusek Adam Sivertz Michael Blattnig Steve Clowdsley Martha Slaba Tony Zeitlin Cary Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56 EPJ Web of Conferences |
| author_facet |
Castellanos Luis A. McGirl Natalie A. Srikrishna Ashwin P. Heilbronn Lawrence H. Tessa Chiara La Rusek Adam Sivertz Michael Blattnig Steve Clowdsley Martha Slaba Tony Zeitlin Cary |
| author_sort |
Castellanos Luis A. |
| title |
Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56 |
| title_short |
Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56 |
| title_full |
Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56 |
| title_fullStr |
Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56 |
| title_full_unstemmed |
Light Ion Yields from Bombardment of Thick Targets by Protons, Helium-4 and Iron-56 |
| title_sort |
light ion yields from bombardment of thick targets by protons, helium-4 and iron-56 |
| publisher |
EDP Sciences |
| series |
EPJ Web of Conferences |
| issn |
2100-014X |
| publishDate |
2017-01-01 |
| description |
In March 2016 accelerator-based experiments colliding protons (0.4 and 0.8 GeV), helium (0.4 AGeV) and iron (0.4 and 0.8 AGeV) on thick aluminum targets with surface densities of 20, 40, and 60 g/cm2 were performed at the National Aeronautics and Space Administration Space Radiation Laboratory (NSRL) at Brookhaven National Laboratory. Two targets were utilized in each experimental configuration. Hydrogen and helium ions were detected using organic liquid scintillators in conjunction with thin plastic scintillators at 10°, 30°, 45°, 60°, 80°, and 135° from beam axis. Time-of-flight techniques and pulse shape discrimination were used to identify light ion species in order to generate double differential energy spectra of the light ion fragments. Comparisons of these measured yields were compared with Monte Carlo calculations generated by MCNP6. These yields will be used to quantify uncertainty in radiation transport codes utilized in risk assessment for spaceflight missions with prolonged exposures to galactic cosmic rays. |
| url |
https://doi.org/10.1051/epjconf/201715307029 |
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