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TY - CONF AU - Niedermayer, U. AU - Adelmann, A. AU - Aßmann, R.W. AU - Bettoni, S. AU - Black, D.S. AU - Boine-Frankenheim, O. AU - Broaddus, P. N. AU - Byer, R.L. AU - Calvi, M. AU - Cankaya, H. AU - Ceballos, A.C. AU - Cesar, D.B. AU - Cowan, B.M. AU - Dehler, M.M. AU - Deng, H. AU - Dorda, U. AU - Egenolf, T. AU - England, R.J. AU - Fakhari, M. AU - Fallahi, A. AU - Fan, S. AU - Ferrari, E. AU - Feurer, T. AU - Frei, F. AU - Harris, J.S. AU - Hartl, I. AU - Hauenstein, D. AU - Hermann, B. AU - Hiller, N. AU - Hirano, T. AU - Hommelhoff, P. AU - Huang, Y.-C. AU - Huang, Z. AU - Hughes, T.W. AU - Illmer, J. AU - Ischebeck, R. AU - Jiang, Y. AU - Kuropka, W. AU - Kärtner, F.X. AU - Langenstein, T. AU - Lee, Y.J. AU - Leedle, K.J. AU - Lemery, F. AU - Li, A. AU - Lombosi, C. AU - Marchetti, B. AU - Mayet, F. AU - Miao, Y. AU - Mittelbach, A.K. AU - Musumeci, P. AU - Naranjo, B. AU - Pigott, A. AU - Prat, E. AU - Qi, M. AU - Reiche, S. AU - Rivkin, L. AU - Rosenzweig, J.B. AU - Sapra, N. AU - Schönenberger, N. AU - Shen, X. AU - Shiloh, R. AU - Simakov, E.I. AU - Skär, E. AU - Solgaard, O. AU - Su, L. AU - Tafel, A.D. AU - Tan, S. AU - Vuckovic, J. AU - Xuan, H. AU - Yang, K. AU - Yousefi, P. AU - Zhao, Z. AU - Zhu, J. ED - Schaa, Volker RW ED - Makino, Kyoko ED - Snopok, Pavel ED - Berz, Martin TI - Challenges in Simulating Beam Dynamics of Dielectric Laser Acceleration J2 - Proc. of ICAP2018, Key West, FL, USA, 20-24 October 2018 CY - Key West, FL, USA T2 - International Computational Accelerator Physics Conference T3 - 13 LA - english AB - Dielectric Laser Acceleration (DLA) achieves the high- est gradients among structure-based electron accelerators. The use of dielectrics increases the breakdown field limit, and thus the achievable gradient, by a factor of at least 10 in comparison to metals. Experimental demonstrations of DLA in 2013 led to the Accelerator on a Chip International Program (ACHIP), funded by the Gordon and Betty Moore Foundation. In ACHIP, our main goal is to build an acceler- ator on a silicon chip, which can accelerate electrons from below 100keV to above 1MeV with a gradient of at least 100MeV/m. For stable acceleration on the chip, magnet- only focusing techniques are insufficient to compensate the strong acceleration defocusing. Thus spatial harmonic and Alternating Phase Focusing (APF) laser-based focusing tech- niques have been developed. We have also developed the simplified symplectic tracking code DLAtrack6D, which makes use of the periodicity and applies only one kick per DLA cell, which is calculated by the Fourier coefficient of the synchronous spatial harmonic. Due to coupling, the Fourier coefficients of neighboring cells are not entirely independent and a field flatness optimization (similarly as in multi-cell cavities) needs to be performed. The simu- lation of the entire accelerator on a chip by a Particle In Cell (PIC) code is possible, but impractical for optimization purposes. Finally, we have also outlined the treatment of wake field effects in attosecond bunches in the grating within DLAtrack6D, where the wake function is computed by an external solver. PB - JACoW Publishing CP - Geneva, Switzerland SP - 120 EP - 126 KW - laser KW - electron KW - focusing KW - experiment KW - acceleration DA - 2019/01 PY - 2019 SN - 978-3-95450-200-4 DO - DOI: 10.18429/JACoW-ICAP2018-MOPLG01 UR - http://jacow.org/icap2018/papers/moplg01.pdf ER -