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Title: A platform for nuclear physics experiments with laser-accelerated light ions

Abstract

A novel platform for nuclear physics experiments has been observed on the high-energy, short-pulse OMEGA EP Laser System. Planar foil targets are irradiated with a 10-ps, 1-kJ infrared beam focused to an intensity of the order of 10 18W/cm 2. Relativistic electrons generated in the laser–target interaction escape the target, generating a very large electrostatic field, which extracts ions from the target’s back surface and accelerates them to MeV energies. The energetic ion flow from the back side of this primary target creates neutrons and charged particles through nuclear reactions in a secondary target placed in the ion flow. Charged-particle detectors were used to measure the energy spectra of the ions. The energy spectrum of the neutrons generated in the secondary target was measured using scintillator-based neutron time-of-flight detectors. First experiments to confirm the performance of this setup studied d(d,n) 3He and 9Be(d,n) 10B reactions. This experimental platform is suitable especially for survey-type studies of nuclear reactions and for reactions that involve rare or radioactive ions like tritium.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Univ. of Rochester, NY (United States)
Publication Date:
Research Org.:
Univ. of Rochester, NY (United States). Lab. for Laser Energetics
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1530533
Report Number(s):
2018-278, 1504
Journal ID: ISSN 0168-583X; 2018-278, 1504, 2463
Grant/Contract Number:  
NA0003856
Resource Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
Additional Journal Information:
Journal Volume: 453; Journal Issue: C; Journal ID: ISSN 0168-583X
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
Short-pulse laser; deuteron beam; nuclear reactions; fusion reactions

Citation Formats

Stoeckl, C., Forrest, C. J., Glebov, V. Yu., Regan, S. P., Sangster, T. C., Schröder, W. U., Schwemmlein, A., and Theobald, W. A platform for nuclear physics experiments with laser-accelerated light ions. United States: N. p., 2019. Web. doi:10.1016/j.nimb.2019.05.073.
Stoeckl, C., Forrest, C. J., Glebov, V. Yu., Regan, S. P., Sangster, T. C., Schröder, W. U., Schwemmlein, A., & Theobald, W. A platform for nuclear physics experiments with laser-accelerated light ions. United States. doi:10.1016/j.nimb.2019.05.073.
Stoeckl, C., Forrest, C. J., Glebov, V. Yu., Regan, S. P., Sangster, T. C., Schröder, W. U., Schwemmlein, A., and Theobald, W. Wed . "A platform for nuclear physics experiments with laser-accelerated light ions". United States. doi:10.1016/j.nimb.2019.05.073.
@article{osti_1530533,
title = {A platform for nuclear physics experiments with laser-accelerated light ions},
author = {Stoeckl, C. and Forrest, C. J. and Glebov, V. Yu. and Regan, S. P. and Sangster, T. C. and Schröder, W. U. and Schwemmlein, A. and Theobald, W.},
abstractNote = {A novel platform for nuclear physics experiments has been observed on the high-energy, short-pulse OMEGA EP Laser System. Planar foil targets are irradiated with a 10-ps, 1-kJ infrared beam focused to an intensity of the order of 1018W/cm2. Relativistic electrons generated in the laser–target interaction escape the target, generating a very large electrostatic field, which extracts ions from the target’s back surface and accelerates them to MeV energies. The energetic ion flow from the back side of this primary target creates neutrons and charged particles through nuclear reactions in a secondary target placed in the ion flow. Charged-particle detectors were used to measure the energy spectra of the ions. The energy spectrum of the neutrons generated in the secondary target was measured using scintillator-based neutron time-of-flight detectors. First experiments to confirm the performance of this setup studied d(d,n)3He and 9Be(d,n)10B reactions. This experimental platform is suitable especially for survey-type studies of nuclear reactions and for reactions that involve rare or radioactive ions like tritium.},
doi = {10.1016/j.nimb.2019.05.073},
journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
number = C,
volume = 453,
place = {United States},
year = {2019},
month = {6}
}

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Works referenced in this record:

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