التفاصيل البيبلوغرافية
| العنوان: |
Global characterization of a laser-generated neutron source. |
| المؤلفون: |
Higginson, D.P., Lelièvre, R., Vassura, L., Gugiu, M.M., Borghesi, M., Bernstein, L.A., Bleuel, D. L., Goldblum, B. L., Green, A., Hannachi, F., Kar, S., Kisyov, S., Quentin, L., Schroer, M., Tarisien, M., Willi, O., Antici, P., Negoita, F., Allaoua, A., Fuchs, J. |
| المصدر: |
Journal of Plasma Physics; May2024, Vol. 90 Issue 3, p1-21, 21p |
| مصطلحات موضوعية: |
PARTICLE beams, NEUTRON measurement, NEUTRON sources, PLASMA diagnostics, NEUTRON emission |
| مستخلص: |
Laser-driven neutron sources are routinely produced by the interaction of laser-accelerated protons with a converter. They present complementary characteristics to those of conventional accelerator-based neutron sources (e.g. short pulse durations, enabling novel applications like radiography). We present here results from an experiment aimed at performing a global characterization of the neutrons produced using the Titan laser at the Jupiter Laser Facility (Livermore, USA), where protons were accelerated from 23 $\mathrm {\mu }$ m thick plastic targets and directed onto a LiF converter to produce neutrons. For this purpose, several diagnostics were used to measure these neutron emissions, such as CR-39, activation foils, time-of-flight detectors and direct measurement of $^7{\rm Be}$ residual activity in the LiF converters. The use of these different, independently operating diagnostics enables comparison of the various measurements performed to provide a robust characterization. These measurements led to a neutron yield of $2.0\times 10^{9}$ neutrons per shot with a modest angular dependence, close to that simulated. [ABSTRACT FROM AUTHOR] |
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