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Irradiation of materials with short, intense ion pulses at NDCX-II

  • P.A. Seidl (a1), J.J. Barnard (a2), E. Feinberg (a1), A. Friedman (a2), E.P. Gilson (a3), D.P. Grote (a2), Q. Ji (a1), I.D. Kaganovich (a3), B. Ludewigt (a1), A. Persaud (a1), C. Sierra (a1), M. Silverman (a1), A.D. Stepanov (a3), A. Sulyman (a1), F. Treffert (a4), W.L. Waldron (a1), M. Zimmer (a4) and T. Schenkel (a1)...

We present an overview of the performance of the Neutralized Drift Compression Experiment-II (NDCX-II) accelerator at Berkeley Lab, and report on recent target experiments on beam-driven melting and transmission ion energy loss measurements with nanosecond and millimeter-scale ion beam pulses and thin tin foils. Bunches with around 1011 ions, 1 mm radius, and 2–30 ns full width at half maximum duration have been created with corresponding fluences in the range of 0.1–0.7 J/cm2. To achieve these short pulse durations and mm-scale focal spot radii, the 1.1 MeV [megaelectronvolt (106 eV)] He+ ion beam is neutralized in a drift compression section, which removes the space charge defocusing effect during final compression and focusing. The beam space charge and drift compression techniques resemble necessary beam conditions and manipulations in heavy ion inertial fusion accelerators. Quantitative comparison of detailed particle-in-cell simulations with the experiment plays an important role in optimizing accelerator performance.

Corresponding author
Address correspondence and reprint requests to: P.A. Seidl, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Mailstop 58-0111, Berkeley, CA 94720, USA. E-mail:
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Present address: XTD-IDA, Los Alamos National Laboratory, Los Alamos, NM, USA.

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Baglin, J.E.E., Hodgson, R.T., Chu, W.K., Neri, J.M., Hammer, D.A. & Chen, L.J. (1981). Pulsed proton beam annealing of semiconductors and silicides. Nucl. Instrum. Methods 191, 169.
Bai, X.-M., Voter, A.F., Hoagland, R.G., Nastasi, M. & Uberuaga, B.P. (2010). Efficient annealing of radiation damage near grain boundaries via interstitial emission. Science 327, 1631.
Bangerter, R.O., Faltens, A. & Seidl, P.A. (2013). Accelerators for inertial fusion energy production. Rev. Accel. Sci. Tech. 6, 85.
Barnard, J.J., More, R.M., Terry, M., Friedman, A., Henestroza, E., Koniges, A., Kwan, J.W., Ng, A., Ni, P.A., Liu, W., Logan, B.G., Startsev, E. & Yuen, A. (2014). NDCX-II target experiments and simulations. Nucl. Instrum. Methods A733, 45.
Bienfait, A., Pla, J.J., Kubo, Y., Stern, M., Zhou, X., Lo, C.C., Weis, C.D., Schenkel, T., Thewalt, M.L.W., Vion, D., Esteve, D., Julsgaard, B., Mølmer, K., Morton, J.J.L. & Bertet, P. (2016). Reaching the quantum limit of sensitivity in electron spin resonance. Nat. Nanotechnol. 11, 253257.
Davidson, R.C., Kaganovich, I.D., Lee, W.W., Qin, H., Startsev, E.A., Tzenov, S., Friedman, A., Barnard, J.J., Cohen, R.H., Grote, D.P., Lund, S.M., Sharp, W.M., Celata, C.M., de Hoon, M., Henestroza, E., Lee, E.P., Yu, S.S., Vay, J.-L., Welch, D.R., Rose, D.V. & Olson, C.L. (2002). Overview of theory and modeling in the heavy ion fusion virtual national laboratory. Laser Part. Beams 20, 3, 377.
Dorf, M.A., Davidson, R.C., Kaganovich, I.D. & Startsev, E.A. (2012). Enhanced collective focusing of intense neutralized ion beam pulses in the presence of weak solenoidal magnetic fields. Phys. Plasmas 19, 056704.
Friedman, A., Barnard, J.J., Cohen, R.H., Grote, D.P., Lund, S.M., Sharp, W.M., Faltens, A., Henestroza, E., Jung, J.-Y., Kwan, J.W., Lee, E.P., Leitner, M.A., Logan, B.G., Vay, J.-L., Waldron, W.L., Davidson, R.C., Dorf, M., Gilson, E.P. & Kaganovich, I.D. (2010). Beam dynamics of the Neutralized Drift Compression Experiment-II, a novel pulse-compressing ion accelerator. Phys. Plasmas 17, 056704.
Gilson, E.P., Davidson, R.C., Efthimion, P.C., Gleizer, J.Z., Kaganovich, I.D. & Krasik, Ya.E. (2012). Plasma source development for the NDCX-I and NDCX-II neutralized drift compression experiments. Laser Part. Beams 30, 435.
Gilson, E.P., Davidson, R.C., Efthimion, P.C., Kaganovich, I.D., Kwan, J.W., Lidia, S.M., Ni, P.A., Roy, P.K., Seidl, P.A., Waldron, W.L., Barnard, J.J. & Friedman, A. (2013). Ferroelectric plasma sources for NDCX-II and heavy ion drivers. Nucl. Instrum. Methods A733, 75.
Grisham, L.R. (2004). Moderate energy ions for high energy density physics experiments. Phys. Plasmas 11, 5727.
Ji, Q., Seidl, P.A., Waldron, W.L., Takakuwa, J.H., Friedman, A., Grote, D.P., Persaud, A., Barnard, J.J. & Schenkel, T. (2016). Development and testing of a pulsed helium ion source for probing materials and warm dense matter studies. Rev. Sci. Instrum. 87, 02B707.
Liu, W., Koniges, A., Gott, K., Eder, D., Barnard, J., Friedman, A., Masters, N. & Fisher, A. (2017). Surface tension models for a multi-material ALE code with AMR. Comput. Fluids.
Persaud, A., Barnard, J.J., Guo, H., Hosemann, P., Lidia, S., Minor, A.M., Seidl, P.A. & Schenkel, T. (2015). Accessing defect dynamics using intense, nanosecond pulsed ion beams. Phys. Procedia 66, 604.
Schenkel, T., Lidia, S.M., Weis, C.D., Waldron, W.L., Schwartz, J., Minor, A.M., Hosemann, P. & Kwan, J.W. (2013). Towards pump-probe experiments of defect dynamics with short ion beam pulses. Nucl. Instrum. Methods B315, 350.
Schwartz, J., Aloni, S., Ogletree, D.F., Tomut, M., Bender, M., Severin, D., Trautmann, C., Rangelow, I.W. & Schenkel, T. (2014). Local formation of nitrogen-vacancy centers in diamond by swift heavy ions. J. Appl. Phys. 116, 214107.
Sefkow, A.B., Davidson, R.C., Efthimion, P.C., Gilson, E.P., Yu, S.S., Roy, P.K., Bieniosek, F.M., Coleman, J.E., Eylon, S., Greenway, W.G., Henestroza, E., Kwan, J.W., Vanecek, D.L., Waldron, W.L. & Welch, D.R. (2006). Fast Faraday cup to measure neutralized drift compression in intense ion charge bunches. Phys. Rev. ST Accel. Beams 9, 052801.
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. (2016). Short-pulse, compressed ion beams at the Neutralized Drift Compression Experiment. J. Phys. Conf. Ser. 717, 012079.
Seidl, P.A., Persaud, A., Waldron, W.L., Barnard, J.J., Davidson, R.C., Friedman, A., Gilson, E.P., Greenway, W.G., Grote, D.P., Kaganovich, I.D., Lidia, S.M., Stettler, M., Takakuwa, J.H. & Schenkel, T. (2015). Short intense ion pulses for materials and warm dense matter research. Nucl. Instrum. Methods A800, 98103.
Tokluoglu, E. & Kaganovich, I.D. (2015). Defocusing of an ion beam propagating in background plasma due to two-stream instability. Phys. Plasmas 22, 040701.
Waldron, W.L., Abraham, W.J., Arbelaez, D., Friedman, A., Galvin, J.E., Gilson, E.P., Greenway, W.G., Grote, D.P., Jung, J.-Y., Kwan, J.W., Leitner, M., Lidia, S.M., Lipton, T.M., Reginato, L.L., Regis, M.J., Roy, P.K., Sharp, W.M., Stettler, M.W., Takakuwa, J.H., Volmering, J. & Vytla, V.K. (2014). The NDCX-II engineering design. Nucl. Instrum. Methods A733, 226232.
Wallace, J.B., Charnvanichborikarn, S., Bayu Aji, L.B., Myers, M.T., Shao, L. & Kucheyev, S.O. (2016). Radiation defect dynamics in Si at room temperature studied by pulsed ion beams. J. Appl. Phys. 118, 135709.
Ziegler, J.F., Ziegler, M.D. & Biersack, J.P. (2010). SRIM: The Stopping and Range of Ions in Matter. Nucl. Instrum. Methods B268, 1818.
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Laser and Particle Beams
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