Zobrazeno 1 - 10
of 49
pro vyhledávání: '"M H Butler"'
Autor:
R. Wilson, M. King, N. M. H. Butler, D. C. Carroll, T. P. Frazer, M. J. Duff, A. Higginson, R. J. Dance, J. Jarrett, Z. E. Davidson, C. D. Armstrong, H. Liu, S. J. Hawkes, R. J. Clarke, D. Neely, R. J. Gray, P. McKenna
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-10 (2022)
Abstract Increasing the intensity to which high power laser pulses are focused has opened up new research possibilities, including promising new approaches to particle acceleration and phenomena such as high field quantum electrodynamics. Whilst the
Externí odkaz:
https://doaj.org/article/48653965fe2c4e219917033cec4ca86a
Autor:
A. Higginson, R. J. Gray, M. King, R. J. Dance, S. D. R. Williamson, N. M. H. Butler, R. Wilson, R. Capdessus, C. Armstrong, J. S. Green, S. J. Hawkes, P. Martin, W. Q. Wei, S. R. Mirfayzi, X. H. Yuan, S. Kar, M. Borghesi, R. J. Clarke, D. Neely, P. McKenna
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-9 (2018)
It is a challenge to scale up laser-ion acceleration to higher ion energies. Here the authors demonstrate a hybrid acceleration scheme based on the relativistic induced transparency mechanism using linearly polarised laser interaction with foil targe
Externí odkaz:
https://doaj.org/article/c8346ad48c544cd1af72ae149959a8b6
Autor:
Bruno Gonzalez-Izquierdo, Martin King, Ross J. Gray, Robbie Wilson, Rachel J. Dance, Haydn Powell, David A. Maclellan, John McCreadie, Nicholas M. H. Butler, Steve Hawkes, James S. Green, Chris D. Murphy, Luca C. Stockhausen, David C. Carroll, Nicola Booth, Graeme G. Scott, Marco Borghesi, David Neely, Paul McKenna
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-10 (2016)
Intense laser pulse interaction with ultra-thin foils constitutes a promising approach for proton acceleration. Here the authors show that the degree of ellipticity in the laser beam polarization can be used to control the proton beam profile.
Externí odkaz:
https://doaj.org/article/5df7a151bd234abda065f5c5c7009c42
Autor:
T. P. Frazer, R. Wilson, M. King, N. M. H. Butler, D. C. Carroll, M. J. Duff, A. Higginson, J. Jarrett, Z. E. Davidson, C. Armstrong, H. Liu, D. Neely, R. J. Gray, P. McKenna
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 042015 (2020)
Laser-driven proton acceleration from ultrathin foils is investigated experimentally using f/3 and f/1 focusing. Higher energies achieved with f/3 are shown via simulations to result from self-focusing of the laser light in expanding foils that becom
Externí odkaz:
https://doaj.org/article/57de4c81fa794114ba4342d1036483a8
Autor:
Bruno Gonzalez-Izquierdo, Remi Capdessus, Martin King, Ross J. Gray, Robbie Wilson, Rachel J. Dance, John McCreadie, Nicholas M. H. Butler, Steve J. Hawkes, James S. Green, Nicola Booth, Marco Borghesi, David Neely, Paul McKenna
Publikováno v:
Applied Sciences, Vol 8, Iss 3, p 336 (2018)
The dynamics of the plasma critical density surface in an ultra-thin foil target irradiated by an ultra-intense (∼6 × 10 20 Wcm − 2 ) laser pulse is investigated experimentally and via 2D particle-in-cell simulations. Changes to the surface moti
Externí odkaz:
https://doaj.org/article/cd8fcaae94334734a194df8b978b86e3
Autor:
Robbie Wilson, Martin King, Ross J. Gray, David C. Carroll, Rachel J. Dance, Nicholas M. H. Butler, Chris Armstrong, Steve J. Hawkes, Robert J. Clarke, David J. Robertson, Cyril Bourgenot, David Neely, Paul McKenna
Publikováno v:
Quantum Beam Science, Vol 2, Iss 1, p 1 (2018)
Increasing the peak intensity to which high power laser pulses are focused can open up new regimes of laser-plasma interactions, resulting in the acceleration of ions to higher energies and more efficient generation of energetic photons. Low f-number
Externí odkaz:
https://doaj.org/article/cdd929d407714cdb898eda29d7e98bb5
Autor:
Jonathan Jarrett, Hao Liu, Ross Gray, Paul McKenna, M. J. Duff, David Carroll, N. M. H. Butler, Chris Armstrong, Robbie Wilson, Z. E. Davidson, David Neely, A. Higginson, Timothy P. Frazer, M. King
Publikováno v:
Laser Acceleration of Electrons, Protons, and Ions VI.
The maximum energy to which ions are accelerated in the interaction of a high power laser pulse with a thin foil target scales with the laser intensity, with a power-law that varies with the acceleration mechanism and laser pulse parameters. For fixe
Autor:
Ross Gray, N. M. H. Butler, M. J. Duff, Paul McKenna, M. King, H. Liu, Robbie Wilson, Jonathan Jarrett, Chris Armstrong, David Neely, A. Higginson, Timothy P. Frazer, Z. E. Davidson, David Carroll
Publikováno v:
Physical Review Research. 2
Laser-driven proton acceleration from ultrathin foils is investigated experimentally using F/3 and F/1 focusing. Higher energies achieved with F/3 are shown via simulations to result from self-focusing of the laser light in expanding foils that becom
Autor:
Ya., Faenov A., J.Coglan, A., Pikuz S., Zhidkov, A., A., Pikuz T., Abdallah, Jr. J., Tubman, E., M., H. Butler N., J., Dance R., Yu., Skobelev I., Z., Alkhimova M., booth, N., Green, J., Gregory, C., Andreev, A., Sakaki, H., Sagisaka, Akito, Pirozhkov, Alexander, Ogura, Koichi, Fukuda, Yuuji, Kanasaki, Masato, Hasegawa, Noboru, Nishikino, Masaharu, Kando, Masaki, Kawachi, Tetsuya, Kondo, Kiminori, McKenna, P., J., Tallents G., Woolsey, N., Kodama, R.
Publikováno v:
Proceedings of the 15th International Conference on X-Ray Lasers. 202:149-158
By using of high-resolution X-ray spectroscopic measurements and kinetic simulations, we demonstrate that the energy of femtosecond laser pulses is efficiently converted to X-ray radiation and produces exotic states in solid density plasma regions. I
Autor:
A. Higginson, John Jowsey, S. R. Mirfayzi, Aaron Alejo, N. M. H. Butler, R. J. Clarke, Paul McKenna, Chris Armstrong, Ceri Brenner, Ric M. Allott, M. M. Notley, D. Haddock, C. Paraskevoulakos, Thomas Bligh Scott, C. D. Murphy, Hamad Ahmed, David Neely, Dean Rusby, L. A. Wilson, Christopher Jones, Cristina Hernandez-Gomez, C.A. Stitt, Satyabrata Kar
Publikováno v:
Jones, C P, Brenner, C M, Stitt, C A, Armstrong, C, Rusby, D R, Mirfayzi, S R, Wilson, L A, Alejo, A, Ahmed, H, Allott, R, Butler, N M H, Clarke, R J, Haddock, D, Hernandez-Gomez, C, Higginson, A, Murphy, C, Notley, M, Paraskevoulakos, C, Jowsey, J, McKenna, P, Neely, D, Kar, S & Scott, T B 2016, ' Evaluating laser-driven bremsstrahlung radiation sources for imaging and analysis of nuclear waste packages ', Journal of Hazardous Materials, vol. 318, pp. 694-701 . https://doi.org/10.1016/j.jhazmat.2016.07.057
Jones, C P, Brenner, C M, Stitt, C A, Armstrong, C, Rusby, D R, Mirfayzi, S R, Wilson, L A, Alejo, A, Ahmed, H, Allott, R, Butler, N M H, Clarke, R J, Haddock, D, Hernandez-Gomez, C, Higginson, A, Murphy, C, Notley, M, Paraskevoulakos, C, Jowsey, J, McKenna, P, Neely, D, Kar, S & Scott, T B 2016, ' Evaluating laser-driven Bremsstrahlung radiation sources for imaging and analysis of nuclear waste packages ', Journal of Hazardous Materials . https://doi.org/10.1016/j.jhazmat.2016.07.057
Jones, C P, Brenner, C M, Stitt, C A, Armstrong, C, Rusby, D R, Mirfayzi, S R, Wilson, L A, Alejo, A, Ahmed, H, Allott, R, Butler, N M H, Clarke, R J, Haddock, D, Hernandez-Gomez, C, Higginson, A, Murphy, C, Notley, M, Paraskevoulakos, C, Jowsey, J, McKenna, P, Neely, D, Kar, S & Scott, T B 2016, ' Evaluating laser-driven Bremsstrahlung radiation sources for imaging and analysis of nuclear waste packages ', Journal of Hazardous Materials . https://doi.org/10.1016/j.jhazmat.2016.07.057
A small scale sample nuclear waste package, consisting of a 28mm diameter uranium penny encased in grout, was imaged by absorption contrast radiography using a single pulse exposure from an x-ray source driven by a high-power laser. The Vulcan laser