Zobrazeno 1 - 10
of 694
pro vyhledávání: '"Wurtele P"'
We develop a new algorithm to estimate the temperature of a nonneutral plasma in a Penning-Malmberg trap. The algorithm analyzes data obtained by slowly lowering a voltage that confines one end of the plasma and collecting escaping charges, and is a
Externí odkaz:
http://arxiv.org/abs/2409.11610
Evolution of the autoresonant plasma wave excitation in two-dimensional particle-in-cell simulations
Autor:
Luo, Mufei., Riconda, Caterina., Grassi, Anna., Wang, Ning., Wurtele, Jonathan S., Fülöp, Tünde, Pusztai, István
The generation of an autoresonantly phase-locked high amplitude plasma waves to the chirped beat frequency of two driving lasers is studied in two dimensions using particle-in-cell simulations. The two-dimensional plasma and laser parameters correspo
Externí odkaz:
http://arxiv.org/abs/2406.06303
Autoresonant phase-locking of the plasma wakefield to the beat frequency of two driving lasers offers advantages over conventional wakefield acceleration methods, since it requires less demanding laser parameters and is robust to variations in the ta
Externí odkaz:
http://arxiv.org/abs/2402.06534
Autor:
Diego Galeano, Imrat, Jeffrey Haltom, Chaylen Andolino, Aliza Yousey, Victoria Zaksas, Saswati Das, Stephen B. Baylin, Douglas C. Wallace, Frank J. Slack, Francisco J. Enguita, Eve Syrkin Wurtele, Dorothy Teegarden, Robert Meller, Daniel Cifuentes, Afshin Beheshti
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-16 (2024)
Abstract MicroRNAs (miRNAs) have been implicated in human disorders, from cancers to infectious diseases. Targeting miRNAs or their target genes with small molecules offers opportunities to modulate dysregulated cellular processes linked to diseases.
Externí odkaz:
https://doaj.org/article/f33890c2c4824222b8db02e8553313a4
Autor:
Baker, C. J., Bertsche, W., Capra, A., Cesar, C. L., Charlton, M., Christensen, A. J., Collister, R., Mathad, A. Cridland, Eriksson, S., Evans, A., Evetts, N., Fabbri, S., Fajans, J., Friesen, T., Fujiwara, M. C., Gill, D. R., Grandemange, P., Granum, P., Hangst, J. S., Hayden, M. E., Hodgkinson, D., Isaac, C. A., Johnson, M. A., Jones, J. M., Jones, S. A., Khramov, A., Kurchaninov, L., Madsen, N., Maxwell, D., McKenna, J. T. K., Menary, S., Momose, T., Mullan, P. S., Munich, J. J., Olchanski, K., Peszka, J., Powell, A., Rasmussen, C. O., Sacramento, R. L., Sameed, M., Sarid, E., Silveira, D. M., So, C., Starko, D. M., Stutter, G., Tharp, T. D., Thompson, R. I., Torkzaban, C., van der Werf, D. P., Wurtele, J. S.
The ALPHA Collaboration, based at the CERN Antiproton Decelerator, has recently implemented a novel beamline for low-energy ($\lesssim$ 100 eV) positron and antiproton transport between cylindrical Penning traps that have strong axial magnetic fields
Externí odkaz:
http://arxiv.org/abs/2211.09838
Autor:
J. Tyson McDonald, JangKeun Kim, Lily Farmerie, Meghan L. Johnson, Nidia S. Trovao, Shehbeel Arif, Keith Siew, Sergey Tsoy, Yaron Bram, Jiwoon Park, Eliah Overbey, Krista Ryon, Jeffrey Haltom, Urminder Singh, Francisco J. Enguita, Victoria Zaksas, Joseph W. Guarnieri, Michael Topper, Douglas C. Wallace, Cem Meydan, Stephen Baylin, Robert Meller, Masafumi Muratani, D. Marshall Porterfield, Brett Kaufman, Marcelo A. Mori, Stephen B. Walsh, Dominique Sigaudo-Roussel, Saida Mebarek, Massimo Bottini, Christophe A. Marquette, Eve Syrkin Wurtele, Robert E. Schwartz, Diego Galeano, Christopher E. Mason, Peter Grabham, Afshin Beheshti
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-23 (2024)
Abstract Our previous research revealed a key microRNA signature that is associated with spaceflight that can be used as a biomarker and to develop countermeasure treatments to mitigate the damage caused by space radiation. Here, we expand on this wo
Externí odkaz:
https://doaj.org/article/0649faa161fd46558b42240dde0a9327
Autor:
M. Ahmadi, B. X. R. Alves, C. J. Baker, W. Bertsche, A. Capra, S. Cohen, C. Torkzaban, C. L. Cesar, M. Charlton, R. Collister, S. Eriksson, A. Evans, N. Evetts, J. Fajans, T. Friesen, M. C. Fujiwara, P. Granum, J. S. Hangst, M. E. Hayden, D. Hodgkinson, C. A. Isaac, M. A. Johnson, S. A. Jones, S. Jonsell, N. Kalem, N. Madsen, D. Maxwell, J. T. K. McKenna, S. Menary, T. Momose, J. Munich, K. Olchanski, A. Olin, P. Pusa, C. Ø. Rasmussen, F. Robicheaux, R. L. Sacramento, M. Sameed, E. Sarid, D. M. Silveira, C. So, G. Stutter, T. D. Tharp, R. I. Thompson, D. P. van der Werf, J. S. Wurtele
Publikováno v:
Physical Review Research, Vol 6, Iss 3, p L032065 (2024)
Magnetically trapped antihydrogen atoms can be cooled by expanding the volume of the trap in which they are confined. We report a proof-of-principle experiment in which antiatoms are deliberately released from expanded and static traps. Antiatoms esc
Externí odkaz:
https://doaj.org/article/d19c1188d58d4810a8dab9d14ca219ac
Publikováno v:
Phys. Rev. E 106, 055201 (2022)
We present a method for constructing multiphase excitations in the generally non-integrable system of warm fluid equations describing plasma oscillations. It is based on autoresonant excitation of nonlinear electron plasma waves by phase locking with
Externí odkaz:
http://arxiv.org/abs/2205.14511
Autor:
Dumont, Vincent, Bowen, Trevor A., Roglans, Roger, Dobler, Gregory, Sharma, Mohit S., Karpf, Andy, Bale, Stuart D., Wickenbrock, Arne, Zhivun, Elena, Kornack, Tom, Wurtele, Jonathan S., Budker, Dmitry
Publikováno v:
Journal of Applied Physics 131, 204902 (2022)
We present a comparative analysis of urban magnetic fields between two American cities: Berkeley (California) and Brooklyn Borough of New York City (New York). Our analysis uses data taken over a four-week period during which magnetic field data were
Externí odkaz:
http://arxiv.org/abs/2202.06166
Publikováno v:
Phys. Rev. Research 4, 023150 (2022)
We demonstrate theoretically and numerically that a warm fluid model of a plasma supports space-time quasicrystalline structures. These structures are highly nonlinear, two-phase, ion acoustic waves that are excited autoresonantly when the plasma is
Externí odkaz:
http://arxiv.org/abs/2201.01892