Design and implementation of a Thomson parabola for fluence dependent energy-loss measurements at the Neutralized Drift Compression eXperiment

Treffert, F.; Ji, Q.; Seidl, P. A.; Persaud, A.; Ludewigt, B.; Barnard, J. J.; Friedman, A.; Grote, D. P.; Gilson, E. P.; Kaganovich, I. D.; Stepanov, A.; Roth, M.; Schenkel, T.

doi:10.1063/1.5030541

Title: Design and implementation of a Thomson parabola for fluence dependent energy-loss measurements at the Neutralized Drift Compression eXperiment

Journal Article · Tue Oct 16 00:00:00 EDT 2018 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.5030541· OSTI ID:1490055

Treffert, F. ^[1]; Ji, Q. ^[2]; Seidl, P. A. ^[2];

^[2];

^[3];

^[3]; Grote, D. P. ^[3];

^[4];

^[4]; Stepanov, A. ^[4]; Roth, M. ^[5]; Schenkel, T. ^[2]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Technical University Darmstadt (Germany)
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)
Technical University Darmstadt (Germany)

The interaction of ion beams with matter includes the investigation of the basic principles of ion stopping in heated materials. An unsolved question is the effect of different, especially higher, ion beam fluences on ion stopping in solid targets. This is relevant in applications such as in fusion sciences. To address this question, a Thomson parabola was built for the Neutralized Drift Compression eXperiment (NDCX-II) for ion energy-loss measurements at different ion beam fluences. The linear induction accelerator NDCX-II delivers 2 ns short, intense ion pulses, up to several tens of nC/pulse, or 10¹⁰-10¹¹ ions, with a peak kinetic energy of ~1.1 MeV and a minimal spot size of 2 mm FWHM. For this particular accelerator the energy determination with conventional beam diagnostics, for example, time of flight measurements, is imprecise due to the non-trivial longitudinal phase space of the beam. In contrast, a Thomson parabola is well suited to reliably determine the beam energy distribution. The Thomson parabola differentiates charged particles by energy and charge-to-mass ratio, through deflection of charged particles by electric and magnetic fields. During first proof-of-principle experiments, we achieved to reproduce the average initial helium beam energy as predicted by computer simulations with a deviation of only 1.4 %. Successful energy-loss measurements with 1 μm thick Silicon Nitride foils show the suitability of the accelerator for such experiments. The initial ion energy was determined during a primary measurement without a target, while a second measurement, incorporating the target, was used to determine the transmitted energy. The energy-loss was then determined as the difference between the two energies.

View Accepted Manuscript (DOE)

View Accepted Manuscript (Publisher)

Cite

Export

Save

Research Organization:: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Fusion Energy Sciences (FES)

Grant/Contract Number:: AC02-76SF00515; AC52-07NA27344; AC0205CH11231; AC02-09CH11466; AC02-05CH11231

OSTI ID:: 1490055

Alternate ID(s):: OSTI ID: 1477817; OSTI ID: 1489662; OSTI ID: 1770030

Report Number(s):: LLNL-JRNL-813488

Journal Information:: Review of Scientific Instruments, Vol. 89, Issue 10; ISSN 0034-6748

Publisher:: American Institute of Physics (AIP)Copyright Statement

Country of Publication:: United States

Language:: English

Citation Metrics:

Cited by: 4 works

Citation information provided by
Web of Science

References (10)

The NDCX-II engineering design Waldron, W. L.; Abraham, W. J.; Arbelaez, D. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 733 https://doi.org/10.1016/j.nima.2013.05.063	journal	January 2014
New Detection Device for Thomson Parabola Spectrometer for Diagnosis of the Laser-Plasma Ion Beam Mori, Michiaki; Kando, Masaki; Pirozhkov, Alexander S. Plasma and Fusion Research, Vol. 1 https://doi.org/10.1585/pfr.1.042	journal	January 2006
Femtosecond dynamics – snapshots of the early ion-track evolution Schiwietz, G.; Czerski, K.; Roth, M. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 225, Issue 1-2 https://doi.org/10.1016/j.nimb.2004.05.041	journal	August 2004
Development and testing of a pulsed helium ion source for probing materials and warm dense matter studies Ji, Q.; Seidl, P. A.; Waldron, W. L. Review of Scientific Instruments, Vol. 87, Issue 2 https://doi.org/10.1063/1.4932569	journal	February 2016
Computational Methods in the Warp Code Framework for Kinetic Simulations of Particle Beams and Plasmas Friedman, Alex; Cohen, Ronald H.; Grote, David P. IEEE Transactions on Plasma Science, Vol. 42, Issue 5 https://doi.org/10.1109/TPS.2014.2308546	journal	May 2014
Development and calibration of a Thomson parabola with microchannel plate for the detection of laser-accelerated MeV ions Harres, K.; Schollmeier, M.; Brambrink, E. Review of Scientific Instruments, Vol. 79, Issue 9 https://doi.org/10.1063/1.2987687	journal	January 2008
Short intense ion pulses for materials and warm dense matter research Seidl, Peter A.; Persaud, Arun; Waldron, William L. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 800 https://doi.org/10.1016/j.nima.2015.08.013	journal	November 2015
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
Instrumentation for diagnostics and control of laser-accelerated proton (ion) beams Bolton, P. R.; Borghesi, M.; Brenner, C. Physica Medica, Vol. 30, Issue 3 https://doi.org/10.1016/j.ejmp.2013.09.002	journal	May 2014
Femtosecond dynamics – snapshots of the early ion-track evolution Schiwietz, G.; Czerski, K.; Roth, M. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 226, Issue 4 https://doi.org/10.1016/j.nimb.2004.05.043	journal	December 2004

Cited By (2)

Absolute Calibration of GafChromic Film for Very High Flux Laser Driven Ion Beams Bin, J. H.; Ji, Q.; Seidl, P. A. Deutsches Elektronen-Synchrotron, DESY, Hamburg https://doi.org/10.3204/pubdb-2020-00807	text	January 2019
Absolute calibration of GafChromic film for very high flux laser driven ion beams Bin, J. H.; Ji, Q.; Seidl, P. A. Review of Scientific Instruments, Vol. 90, Issue 5 https://doi.org/10.1063/1.5086822	journal	May 2019