FAST ION DIAGNOSTICS OF NANOSECOND PINCH WITH LASER INITIATION
https://doi.org/10.56304/S2079562926010501
EDN: ZXIMRE
Abstract
The paper presents diagnostics of high-energy ions (more than 1 MeV per particle) emitted in the axial direction from a laser-induced spark discharge in the pinching mode at a current of up to 80 kA and an energy input of up to 120 J. A characteristic feature of the discharge is the rapid increase in current to its maximum value within a time of ≈100 ns. To initiate the discharge, a YAG:Nd+3 laser with an energy of 150 mJ and a duration of 10 ns was used, the radiation of which was focused on a high-voltage electrode made of cobalt. Using the time-of-flight collector technique, up to 1010 cobalt ions were recorded per pulse in a solid angle of 0.04 rad. Calculations were performed and a model of a mass spectrometer was developed, optimized for an experiment to register fast highly charged cobalt ions.
About the Authors
E. D. Vovchenko
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
K. I. Kozlowskiy
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
E. A. Morozova
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
A. E. Shikanov
National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)
Russian Federation
Russian Federation
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Review
For citations:
Vovchenko E.D., Kozlowskiy K.I., Morozova E.A., Shikanov A.E. FAST ION DIAGNOSTICS OF NANOSECOND PINCH WITH LASER INITIATION. Nuclear Physics and Engineering. 2026;17(1):140-144. (In Russ.) https://doi.org/10.56304/S2079562926010501. EDN: ZXIMRE
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