Zobrazeno 1 - 10
of 106
pro vyhledávání: '"Brendan O'Shea"'
Autor:
Robbie Watt, Brendan O'Shea
Publikováno v:
Journal of Synchrotron Radiation, Vol 31, Iss 2, Pp 409-419 (2024)
The direction of particle accelerator development is ever-increasing beam quality, currents and repetition rates. This poses a challenge to traditional diagnostics that directly intercept the beam due to the mutual destruction of both the beam and th
Externí odkaz:
https://doaj.org/article/886034cc6e4c4421b7c2b68439771931
Publikováno v:
SSM: Qualitative Research in Health, Vol 5, Iss , Pp 100381- (2024)
During the pandemic, many older adults felt ‘out of place’ in their home, work, and community spaces with potentially long-term consequences for health and wellbeing. Using national data from the COVID-19 Coping Study, thematic analysis of online
Externí odkaz:
https://doaj.org/article/18f4565cb36a4f55ae6df1801592f05a
Autor:
Aimé Matheron, Pablo San Miguel Claveria, Robert Ariniello, Henrik Ekerfelt, Frederico Fiuza, Spencer Gessner, Max F. Gilljohann, Mark J. Hogan, Christoph H. Keitel, Alexander Knetsch, Mike Litos, Yuliia Mankovska, Samuele Montefiori, Zan Nie, Brendan O’Shea, J. Ryan Peterson, Doug Storey, Yipeng Wu, Xinlu Xu, Viktoriia Zakharova, Xavier Davoine, Laurent Gremillet, Matteo Tamburini, Sébastien Corde
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-9 (2023)
Abstract Ongoing progress in laser and accelerator technology opens new possibilities in high-field science, notably to investigate the largely unexplored strong-field quantum electrodynamics (SFQED) regime where electron-positron pairs can be create
Externí odkaz:
https://doaj.org/article/572e009da09749e6a33c4e33cde44dfd
Publikováno v:
Wellbeing, Space and Society, Vol 6, Iss , Pp 100184- (2024)
Little is known about longer-term changes to community participation since the COVID-19 pandemic onset and potential implications for health and wellbeing in later life. This multi-method investigation analyzes national data from the COVID-19 Coping
Externí odkaz:
https://doaj.org/article/952aca9c12fb487187b4ba28bb3cf9e6
Autor:
Aimé Matheron, Pablo San Miguel Claveria, Robert Ariniello, Henrik Ekerfelt, Frederico Fiuza, Spencer Gessner, Max F. Gilljohann, Mark J. Hogan, Christoph H. Keitel, Alexander Knetsch, Mike Litos, Yuliia Mankovska, Samuele Montefiori, Zan Nie, Brendan O’Shea, J. Ryan Peterson, Doug Storey, Yipeng Wu, Xinlu Xu, Viktoriia Zakharova, Xavier Davoine, Laurent Gremillet, Matteo Tamburini, Sébastien Corde
Publikováno v:
Communications Physics, Vol 6, Iss 1, Pp 1-1 (2023)
Externí odkaz:
https://doaj.org/article/95c986a8bff845398a8b22bf10c5e600
Publikováno v:
Information, Vol 12, Iss 2, p 61 (2021)
We discuss the implementation of a suite of virtual diagnostics at the FACET-II facility currently under commissioning at SLAC National Accelerator Laboratory. The diagnostics will be used for the prediction of the longitudinal phase space along the
Externí odkaz:
https://doaj.org/article/c479af8a958d4adc8a9e1d5b183fd9ca
Autor:
Spencer Gessner, Erik Adli, James M. Allen, Weiming An, Christine I. Clarke, Chris E. Clayton, Sebastien Corde, J. P. Delahaye, Joel Frederico, Selina Z. Green, Carsten Hast, Mark J. Hogan, Chan Joshi, Carl A. Lindstrøm, Nate Lipkowitz, Michael Litos, Wei Lu, Kenneth A. Marsh, Warren B. Mori, Brendan O’Shea, Navid Vafaei-Najafabadi, Dieter Walz, Vitaly Yakimenko, Gerald Yocky
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-6 (2016)
Plasma wakefield accelerators produce gradients that are orders of magnitude larger than in conventional particle accelerator, but beams tend to be disrupted by transverse forces. Here the authors create an extended hollow plasma channel, which accel
Externí odkaz:
https://doaj.org/article/bfe7df607fe248daa03a6b8f415beeb7
Autor:
Lígia Diana Amorim, Navid Vafaei-Najafabadi, Claudio Emma, Christine I. Clarke, Selina Z. Green, Doug Storey, Glen White, Brendan O’Shea, Mark J. Hogan, Vitaly Yakimenko, Michael Litos, Gaurav Raj, Olena Kononenko, Pablo San Miguel Claveria, Sébastien Corde, Spencer Gessner, Xinlu Xu, Ken Marsh, Chris E. Clayton, Chandrashekhar Joshi, Warren B. Mori, Erik Adli
Publikováno v:
Physical Review Accelerators and Beams, Vol 22, Iss 11, p 111303 (2019)
Recent progress in plasma based accelerator technology has demonstrated its ability to deliver high energy (GeV) beams in compact structures (centimeter to meter scale plasmas). Current developments of that technology are oriented toward producing be
Externí odkaz:
https://doaj.org/article/1baff1a9bbb34013a66cdea1afee6667
Autor:
Massimo Dal Forno, Valery Dolgashev, Gordon Bowden, Christine Clarke, Mark Hogan, Doug McCormick, Alexander Novokhatski, Brendan O’Shea, Bruno Spataro, Stephen Weathersby, Sami G. Tantawi
Publikováno v:
Physical Review Accelerators and Beams, Vol 21, Iss 9, p 091301 (2018)
Experiments with high gradient traveling-wave mm-wave metallic accelerating structures were performed to research the physics of vacuum rf breakdowns. The accelerating structures are open, composed of two identical halves separated by an adjustable g
Externí odkaz:
https://doaj.org/article/5d5f75838d544608a713715beb26ef53
Autor:
Massimo Dal Forno, Valery Dolgashev, Gordon Bowden, Christine Clarke, Mark Hogan, Doug McCormick, Alexander Novokhatski, Brendan O’Shea, Bruno Spataro, Stephen Weathersby, Sami G. Tantawi
Publikováno v:
Physical Review Accelerators and Beams, Vol 19, Iss 11, p 111301 (2016)
This paper explores the physics of vacuum rf breakdowns in subterahertz high-gradient traveling-wave accelerating structures. We present the experimental results of rf tests of 200 GHz metallic accelerating structures, made of copper and copper-silve
Externí odkaz:
https://doaj.org/article/fd710f6d48a14792b5dfcd4bc0c081ab