Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment
Abstract
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 deliveredmore »
- Authors:
-
- 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)
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1335698
- Alternate Identifier(s):
- OSTI ID: 1415957
- Grant/Contract Number:
- AC02-05CH11231; AC52-07NA27344; AC02 -09CH11466
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physics. Conference Series
- Additional Journal Information:
- Journal Volume: 717; Conference: 9. International Conference on Inertial Fusion Sciences and Applications (IFSA), Seattle, WA (United States), 20-25 Sep 2015; Journal ID: ISSN 1742-6588
- Publisher:
- IOP Publishing
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
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., and Schenkel, T. Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment. United States: N. p., 2016.
Web. doi:10.1088/1742-6596/717/1/012079.
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. Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment. United States. https://doi.org/10.1088/1742-6596/717/1/012079
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., and Schenkel, T. Sun .
"Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment". United States. https://doi.org/10.1088/1742-6596/717/1/012079. https://www.osti.gov/servlets/purl/1335698.
@article{osti_1335698,
title = {Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment},
author = {Seidl, P. A. and Barnard, J. J. and Davidson, R. C. and Friedman, A. and Gilson, E. P. and Grote, D. and Ji, Q. and Kaganovich, I. D. and Persaud, A. and Waldron, W. L. and Schenkel, T.},
abstractNote = {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.},
doi = {10.1088/1742-6596/717/1/012079},
journal = {Journal of Physics. Conference Series},
number = ,
volume = 717,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2016},
month = {Sun May 01 00:00:00 EDT 2016}
}
Web of Science
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Works referencing / citing this record:
Amplification due to two-stream instability of self-electric and magnetic fields of an ion beam propagating in background plasma
journal, May 2018
- Tokluoglu, Erinc K.; Kaganovich, Igor D.; Carlsson, Johan A.
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Amplification due to Two-Stream Instability of Self-Electric and Magnetic Fields of an Ion Beam Propagating in Background Plasma
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