Zobrazeno 1 - 10
of 137
pro vyhledávání: '"P. Niknejadi"'
Autor:
S. Schröder, C. A. Lindstrøm, S. Bohlen, G. Boyle, R. D’Arcy, S. Diederichs, M. J. Garland, P. Gonzalez, A. Knetsch, V. Libov, P. Niknejadi, Kris Põder, L. Schaper, B. Schmidt, B. Sheeran, G. Tauscher, S. Wesch, J. Zemella, M. Zeng, J. Osterhoff
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-6 (2020)
Controlled particle acceleration in plasmas requires precise measurements of the excited wakefield. Here the authors report and demonstrate a high-resolution method to measure the effective longitudinal electric field of a beam-driven plasma-wakefiel
Externí odkaz:
https://doaj.org/article/ab4b66a1ec2549e99fd0f93f92c5e87e
Understanding the environmental impact of professional activities is becoming paramount in current times, especially within sectors that historically have had significant resource utilisation, such as High Energy Physics (HEP) and related fields. The
Externí odkaz:
http://arxiv.org/abs/2403.03308
Autor:
A. Knetsch, B. Sheeran, L. Boulton, P. Niknejadi, K. Põder, L. Schaper, M. Zeng, S. Bohlen, G. Boyle, T. Brümmer, J. Chappell, R. D’Arcy, S. Diederichs, B. Foster, M. J. Garland, P. Gonzalez Caminal, B. Hidding, V. Libov, C. A. Lindstrøm, A. Martinez de la Ossa, M. Meisel, T. Parikh, B. Schmidt, S. Schröder, G. Tauscher, S. Wesch, P. Winkler, J. C. Wood, J. Osterhoff
Publikováno v:
Physical Review Accelerators and Beams, Vol 24, Iss 10, p 101302 (2021)
Electron beams to be accelerated in beam-driven plasma wakes are commonly formed by a photocathode and externally injected into the wakefield of a preceding bunch. Alternatively, using the plasma itself as a cathode offers the possibility of generati
Externí odkaz:
https://doaj.org/article/f266c44ad1b94958ab581450ea5c2cc3
Autor:
Bruers, Ben, Cruces, Marilyn, Demleitner, Markus, Duckeck, Guenter, Düren, Michael, Eich, Niclas, Enßlin, Torsten, Erdmann, Johannes, Erdmann, Martin, Fackeldey, Peter, Felder, Christian, Fischer, Benjamin, Fröse, Stefan, Funk, Stefan, Gasthuber, Martin, Grimshaw, Andrew, Hadasch, Daniela, Hannemann, Moritz, Kappes, Alexander, Kleinemühl, Raphael, Kozlov, Oleksiy M., Kuhr, Thomas, Lupberger, Michael, Neuhaus, Simon, Niknejadi, Pardis, Reindl, Judith, Schindler, Daniel, Schneidewind, Astrid, Schreiber, Frank, Schumacher, Markus, Schwarz, Kilian, Streit, Achim, von Cube, R. Florian, Walker, Rod, Walther, Cyrus, Wozniewski, Sebastian, Zhou, Kai
Given the urgency to reduce fossil fuel energy production to make climate tipping points less likely, we call for resource-aware knowledge gain in the research areas on Universe and Matter with emphasis on the digital transformation. A portfolio of m
Externí odkaz:
http://arxiv.org/abs/2311.01169
Autor:
S. Schröder, C. A. Lindstrøm, S. Bohlen, G. Boyle, R. D’Arcy, S. Diederichs, M. J. Garland, P. Gonzalez, A. Knetsch, V. Libov, P. Niknejadi, Kris Põder, L. Schaper, B. Schmidt, B. Sheeran, G. Tauscher, S. Wesch, J. Zemella, M. Zeng, J. Osterhoff
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-1 (2021)
A Correction to this paper has been published: https://doi.org/10.1038/s41467-020-20676-1
Externí odkaz:
https://doaj.org/article/5283f231f31240afa1fbb99ac5573af2
Autor:
Ashraf Moini, Mehri Kalhor, Shahideh Jahanian Sadatmahalleh, Maryam Niknejadi, Malihe Nasiri, Azar Yahyaei, Shohreh Irani, Seyedeh Saeedeh Mousavi, Saeideh Mikaeili, Negin Mirzaei
Publikováno v:
Journal of Ovarian Research, Vol 16, Iss 1, Pp 1-8 (2023)
Abstract Background Ovarian reserve is a crucial indicator of a woman’s fertility potential, which is determined by the quality and quantity of antral follicles and oocytes. However, certain factors such as endometriosis, pelvic inflammatory diseas
Externí odkaz:
https://doaj.org/article/b4c4f7493fa148fd8511bfb86dc8c32a
Autor:
Knetsch, Alexander, Sheeran, Bridget, Boulton, Lewis, Niknejadi, Pardis, Põder, Kristjan, Schaper, Lucas, Zeng, Ming, Bohlen, Simon, Boyle, Gregory, Brümmer, Theresa, Chappell, James, D'Arcy, Richard, Diederichs, Severin, Foster, Brian, Garland, Matthew James, Caminal, Pau Gonzalez, Hidding, Bernhard, Libov, Vladislav, Lindstrøm, Carl Andreas, de la Ossa, Alberto Martinez, Meisel, Martin, Parikh, Trupen, Schmidt, Bernhard, Schröder, Sarah, Tauscher, Gabriele, Wesch, Stephan, Winkler, Paul, Wood, Jonathan, Osterhoff, Jens
Publikováno v:
Phys. Rev. Accel. Beams 24, 101302 (2021)
This paper describes the utilization of beam-driven plasma wakefield acceleration to implement a high-quality plasma cathode via density-downramp injection in a short injector stage at the FLASHForward facility at DESY. Electron beams with charge of
Externí odkaz:
http://arxiv.org/abs/2007.12639
Autor:
Schröder, S., Ludwig, K., Aschikhin, A., D'Arcy, R., Dinter, M., Gonzalez, P., Karstensen, S., Knetsch, A., Libov, V., Lindstrøm, C. A., Marutzky, F., Niknejadi, P., Rahali, A., Schaper, L., Schleiermacher, A., Schmidt, B., Thiele, S., Wagner, A. de Zubiaurre, Wesch, S., Osterhoff, J.
Publikováno v:
J. Phys.: Conf. Ser. 1596, 012002 (2020)
Beam-driven plasma-wakefield acceleration based on external injection has the potential to significantly reduce the size of future accelerators. Stability and quality of the acceleration process substantially depends on the incoming bunch parameters.
Externí odkaz:
http://arxiv.org/abs/2005.12071
Autor:
D'Arcy, R., Aschikhin, A., Bohlen, S., Boyle, G., Brümmer, T., Chappell, J., Diederichs, S., Foster, B., Garland, M. J., Goldberg, L., Gonzalez, P., Karstensen, S., Knetsch, A., Kuang, P., Libov, V., Ludwig, K., de la Ossa, A. Martinez, Marutzky, F., Meisel, M., Mehrling, T. J., Niknejadi, P., Poder, K., Pourmoussavi, P., Quast, M., Röckemann, J. -H., Schaper, L., Schmidt, B., Schröder, S., Schwinkendorf, J. -P., Sheeran, B., Tauscher, G., Wesch, S., Wing, M., Winkler, P., Zeng, M., Osterhoff, J.
The FLASHForward experimental facility is a high-performance test-bed for precision plasma-wakefield research, aiming to accelerate high-quality electron beams to GeV-levels in a few centimetres of ionised gas. The plasma is created by ionising gas i
Externí odkaz:
http://arxiv.org/abs/1905.03693
Autor:
D'Arcy, R., Wesch, S., Aschikhin, A., Bohlen, S., Behrens, C., Garland, M. J., Goldberg, L., Gonzalez, P., Knetsch, A., Libov, V., de la Ossa, A. Martinez, Meisel, M., Mehrling, T. J., Niknejadi, P., Poder, K., Roeckemann, J. -H., Schaper, L., Schmidt, B., Schroeder, S., Palmer, C., Schwinkendorf, J. -P., Sheeran, B., Streeter, M. J. V., Tauscher, G., Wacker, V., Osterhoff, J.
Publikováno v:
Phys. Rev. Lett. 122, 034801 (2019)
A tunable plasma-based energy dechirper has been developed at FLASHForward to remove the correlated energy spread of a 681~MeV electron bunch. Through the interaction of the bunch with wakefields excited in plasma the projected energy spread was redu
Externí odkaz:
http://arxiv.org/abs/1810.06307