Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment

Seidl, P. A.; Barnard, J. J.; Davidson, R. C.; Friedman, A.; Gilson, E. P.; Grote, D.; Ji, Q.; Kaganovich, I. D.; Persaud, A.; Waldron, W. L.; Schenkel, T.

doi:10.1088/1742-6596/717/1/012079

Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment

Journal Article · Sun May 01 00:00:00 EDT 2016 · Journal of Physics. Conference Series

DOI:https://doi.org/10.1088/1742-6596/717/1/012079· OSTI ID:1335698

Seidl, P. A. ^[1]; Barnard, J. J. ^[2]; ^[3]; Friedman, A. ^[2]; Gilson, E. P. ^[3]; Grote, D. ^[2]; Ji, Q. ^[1]; Kaganovich, I. D. ^[3]; Persaud, A. ^[1]; Waldron, W. L. ^[1]; Schenkel, T. ^[1]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)

We have commenced experiments with intense short pulses of ion beams on the Neutralized Drift Compression Experiment (NDCX-II) at Lawrence Berkeley National Laboratory, with 1-mm beam spot size within 2.5 ns full-width at half maximum. The ion kinetic energy is 1.2 MeV. To enable the short pulse duration and mm-scale focal spot radius, the beam is neutralized in a 1.5-meter-long drift compression section following the last accelerator cell. A short-focal-length solenoid focuses the beam in the presence of the volumetric plasma that is near the target. In the accelerator, the line-charge density increases due to the velocity ramp imparted on the beam bunch. The scientific topics to be explored are warm dense matter, the dynamics of radiation damage in materials, and intense beam and beam-plasma physics including select topics of relevance to the development of heavy-ion drivers for inertial fusion energy. Below the transition to melting, the short beam pulses offer an opportunity to study the multi-scale dynamics of radiation-induced damage in materials with pump-probe experiments, and to stabilize novel metastable phases of materials when short-pulse heating is followed by rapid quenching. First experiments used a lithium ion source; a new plasma-based helium ion source shows much greater charge delivered to the target.

Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Princeton Plasma Physics Laboratory (PPPL), Princeton, NJ (United States)

Sponsoring Organization:: USDOE; USDOE Office of Science (SC), Fusion Energy Sciences (FES) (SC-24)

Grant/Contract Number:: AC02-05CH11231; AC02-09CH11466; AC52-07NA27344

OSTI ID:: 1335698

Alternate ID(s):: OSTI ID: 22681233
OSTI ID: 1415957

Journal Information:: Journal of Physics. Conference Series, Journal Name: Journal of Physics. Conference Series Vol. 717; ISSN 1742-6588

Publisher:: IOP PublishingCopyright Statement

Country of Publication:: United States

Language:: English

References (14)

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Cited By (3)

Irradiation of materials with short, intense ion pulses at NDCX-II Seidl, P. A.; Barnard, J. J.; Feinberg, E. Laser and Particle Beams, Vol. 35, Issue 2 https://doi.org/10.1017/s0263034617000295	journal	May 2017
Amplification due to two-stream instability of self-electric and magnetic fields of an ion beam propagating in background plasma Tokluoglu, Erinc K.; Kaganovich, Igor D.; Carlsson, Johan A. Physics of Plasmas, Vol. 25, Issue 5 https://doi.org/10.1063/1.5038878	journal	May 2018
Amplification due to Two-Stream Instability of Self-Electric and Magnetic Fields of an Ion Beam Propagating in Background Plasma Tokluoglu, Erinc K.; Kaganovich, Igor D.; Carlsson, Johan A. arXiv https://doi.org/10.48550/arxiv.1711.09951	text	January 2017

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