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Journal Articles

The CIELO collaboration; Progress in international evaluations of neutron reactions on Oxygen, Iron, Uranium and Plutonium

Chadwick, M. B.*; Capote, R.*; Trkov, A.*; Kahler, A. C.*; Herman, M. W.*; Brown, D. A.*; Hale, G. M.*; Pigni, M.*; Dunn, M.*; Leal, L.*; et al.

EPJ Web of Conferences, 146, p.02001_1 - 02001_9, 2017/09

 Times Cited Count:6 Percentile:95.25

The CIELO collaboration has studied neutron cross sections on nuclides ($$^{16}$$O, $$^{56}$$Fe, $$^{235,238}$$U and $$^{239}$$Pu) that significantly impact criticality in nuclear technologies with the aim of improving the accuracy of the data and resolving previous discrepancies in our understanding. This multi-laboratory pilot project, coordinated via the OECD/NEA Working Party on Evaluation Cooperation (WPEC) Subgroup 40 with support also from the IAEA, has motivated experimental and theoretical work and led to suites of new evaluated libraries that accurately reflect measured data and also perform well in integral simulations of criticality.

Journal Articles

Chromaticity effects on head-tail instabilities for broadband impedance using two particle model, Vlasov analysis, and simulations

Chin, Y. H.*; Chao, A. W.*; Blaskiewicz, M. M.*; Shobuda, Yoshihiro

Physical Review Accelerators and Beams (Internet), 20(7), p.071003_1 - 071003_18, 2017/07

 Times Cited Count:4 Percentile:35.09(Physics, Nuclear)

no abstracts in English

Journal Articles

Opportunities for TeV laser acceleration

Kando, Masaki; Kiriyama, Hiromitsu; Koga, J. K.; Bulanov, S. V.; Chao, A. W.*; Esirkepov, T. Z.; Hajima, Ryoichi; Tajima, Toshiki

AIP Conference Proceedings 1024, p.197 - 207, 2008/06

no abstracts in English

Journal Articles

On the production of flat electron bunches for laser wakefield acceleration

Kando, Masaki; Fukuda, Yuji; Kotaki, Hideyuki; Koga, J. K.; Bulanov, S. V.; Tajima, Toshiki; Chao, A. W.*; Pitthan, R.*; Schuler, K.-P.*; Zhidkov, A. G.*; et al.

Journal of Experimental and Theoretical Physics, 105(5), p.916 - 926, 2007/11

 Times Cited Count:15 Percentile:62.99(Physics, Multidisciplinary)

We suggest a novel method for injection of electrons into the acceleration phase of particle accelerators, producing low emittance beams appropriate even for the demanding high energy Linear Collider specifications. We discuss the injection mechanism into the acceleration phase of the wake field in a plasma behind a high intensity laser pulse, which takes advantage of the laser polarization and focusing. As shown in three-dimensional particle-in-cell simulations of the interaction of an elongated in transverse direction laser pulse with an underdense plasma, the electrons, injected via the transverse wake wave breaking and accelerated by the wake wave, perform betatron oscillations with different amplitudes and frequencies along the two transverse coordinates. The polarization and focusing geometry lead to a way to produce relativistic electron bunches with asymmetric emittance (flat beam). An approach for generating flat laser accelerated ion beams is briefly discussed.

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