Experimental characterisation of shock waves launched by high intensity laser interaction with over-dense media

Lead Research Organisation: University of York
Department Name: Physics

Abstract

I propose a programme of experiments to develop and then utilise a novel diagnostic technique to better understand the formation of shock waves in the immediate vicinity of a high intensity laser interaction with over-dense plasma*. Ultra-high intensity lasers offer the ability to generate some of the most extreme conditions available to scientists here on earth. However it can be challenging to experimentally diagnose the behaviour where it is at its most extreme: within a few picoseconds and a few microns of the interaction. This is particularly true of the hydrodynamic behaviour that results from such interactions, since such observations typically rely upon detection of macroscopic motion of fluid which may take many tens of picoseconds to become apparent. Here we propose to use the Doppler shift of a short wavelength probe laser to interrogate the expanding shock wave as it forms near the laser focus. This diagnostic relies upon the high velocity of the shocked fluid Doppler-shifting the reflected laser light, rather than upon it examining how far perturbations in the fluid have travelled. Therefore it is capable of resolving shock waves when they are forming, and well before the motion of the fluid would be detectable by more conventional x-ray diagnostic techniques, which typically have resolutions on the order of 15-20 microns. A preliminary experiment has been performed, and the results published in Physical Review Letters in September 2010. This experiment used a solid density target, however, greatly limiting the possibilities for extracting information on shock wave behaviour, since most of the target was opaque to the probe laser. Here we plan to employ low density foam targets which are over-dense to the pump pulse, but only become over-dense to the probe when strongly shocked. The use of such targets allows for the shock wave evolution to be observed from all angles, and also for the possibility of determining if there are multiple regions of shock formation, since it is likely that, in some cases, shock waves will be launched both by the direct action of the laser and indirectly by laser generated energetic electrons that deposit their energy deep within the target. The data obtained is of interest for understanding the behaviour of extremely strong shock waves such as occur in extreme astrophysical scenarios like supernovae; it is also of tremendous relevance to the fast ignition approach to inertial fusion energy, where similarly intense laser pulses are used to heat fusion fuel. The physics responsible for launching shock waves in this scenario is not well understood. Gaining a clearer insight into the relative importance of the various mechanisms responsible is critical to progress in this field, since the behaviour of the shock waves in a fast ignition target directly affects the ignition process and plays a role in determining the required laser specifications for ignition. These experiments will provide critical data that will enable the benchmarking of sophisticated computer simulation codes that can then be applied to the design of fast ignition fusion targets.* Over-dense plasma is that in which a laser beam of a given frequency can no longer propagate due to the density of the electron gas being sufficiently high that oscillatory electron motion is readily established at the frequency of the laser; specifically it refers to plasma in which the electron plasma frequency exceeds the frequency of the laser radiation. At very high laser intensities the density at which the plasma meets this criterion increases due to the effective mass of the electrons increasing, as they are accelerated to relativistic velocities in the field of the laser.

Planned Impact

This grant is intended to support studies in the field of Inertial Fusion Energy (IFE). IFE is one of two mainstream approaches to achieving fusion energy for the purposes of electrical power production here on earth. Fusion energy is a greenhouse-gas-emission-free source of nuclear power which is expected to produce around 1/100000th the quantity of radioactive material created by nuclear-fission-based power production for comparable levels of output. It is hoped that fusion energy will be harnessed in coming decades to power the development of civilisation. It is critical to the future viability of our energy supply chain that UK plc invests heavily in such new forms of energy that are not dependent upon fossil fuel reserves. This grant will advance our knowledge of the science underpinning IFE, and therefore, in cohort with many other ongoing scientific endeavours in this field, may have a dramatic impact on the UK's future. Specifically we will look at the formation of strong shock waves near the focus of intense laser-plasma interactions with dense plasma, with picosecond resolution. The formation of such shock waves on these time scales plays a key role in determining the laser requirements in the fast ignition approach to IFE. The evolution of the shock waves in the dense blob of fusion fuel, launched by the interaction with the ultra-high intensity heater laser beam and consequent relativistic electron heating, determines the time available for delivering the required ignition energy to the fuel, and therefore the required laser power and pulse duration. We will exploit our close ties with the Rutherford Appleton Laboratory (RAL) and Lawrence Livermore National Laboratory (LLNL), as well as the press office at the University of York, to ensure maximum impact. Both RAL and LLNL have extensive ties to both relevant specialist as well as non-academic publication channels. Several recent developments in the field of fast ignition have been publicised through National and International news media. Our work will also be disseminated by publication in high-quality peer reviewed international scientific journals, and presented at conferences both at home and abroad. In addition to the funding requested as part of this grant application, funding for student conference attendance is already in place through existing arrangements, and more will be applied for from other channels such as the Institute of Physics Research Student Conference Fund. As well as advancing our progress toward clean energy, fusion energy experiments are particularly effective in enlivening public interest in science, particularly amongst young people. The University of York, and the PI, are closely associated with the UK's premier public outreach communicator in the field of Inertial Fusion Energy, Dr Kate Lancaster, who has recently taken up a visiting lectureship in our department. In association with Dr Lancaster, we promote public understanding of science and fusion energy in particular. Such activities are only possible due to the strong support our research receives from EPSRC. Increasing public understanding and interest in science is critical to ensuring that sufficient science graduates are produced within the UK to continue our long tradition of scientific innovation, which is so critical to the maintenance of a healthy modern economy. In addition to hosting public science lectures in the department at the University of York, we engage actively with Dr Lancaster's programme of public scientific lectures and interviews. These ventures are already funded by other arrangements including support from the University of York and STFC, but we highlight them here since they serve as useful avenues for ensuring that the research proposed herein would deliver maximum impact.
 
Description We made a major discovery that was widely reported in the press (including the BBC, Washington post and a great many other media outlets). This related to the production of high frequency sound waves when a laser interacted with a target. In attempting to drive shock waves with short pulse lasers and measure their formation we unexpectedly observed the formation of very high frequency (THz) sound waves at the interaction site. A similar process may occur in some stars (generating much lower frequency sound waves) when material falls into them and is rapidly heated - an effect which we described as "Singing Stars". The results of the related laser-solid target interaction experiment were published in Phys. Rev. Letters.
Exploitation Route The ability of a laser to generate ultra-high frequency sound waves, in addition to shock waves, when they interact with a solid target opens up the potential for new applications (there are almost no other competing sources of THz sound waves). This discovery - which is essentially of an entirely new laser-driven hydrodynamic process - is also inspiring significant further research into the process, both in terms of better understanding the parameter space in which it can occur and also (with an applications outlook) in terms of controlling the frequency of these modulations.
Sectors Aerospace, Defence and Marine,Energy,Healthcare,Manufacturing, including Industrial Biotechology,Security and Diplomacy

URL https://www.york.ac.uk/news-and-events/news/2015/research/sound-of-stars/
 
Description PASLEY- U.S. 
Organisation General Atomics
Country United States 
Sector Private 
PI Contribution I have participated in three experiments at the Jupiter Laser Facility and assisted in the interpretation, analysis and preparation of publications resulting from these experiments. In addition I was PI for an experiment at the Central Laser Facility in the UK in which my US collaborators participated heavily, providing diagnostics, manpower and simulation expertise and capability.
Collaborator Contribution The JLF and other partner universities and institutions provided the facilities, manpower and diagnostic equipment. LLNL as a whole provided much of the simulation and modelling expertise, particularly colleagues in AX division.
Impact I.A.Bush, A.G.R.Thomas, L.Gartside, S.Sarfraz, E.Wagenaars, J.S.Green, M.Notley, H.Lowe, C.Spindloe, T.Winstone, A.P.L.Robinson, R.Clarke, T.Ma, T.Yabuuchi, M.Wei, F.N.Beg, R.B.Stephens, A.MacPhee, A.J.MacKinnon, M.H.Key, W.Nazarov, M.Sherlock, and J.Pasley, Phys. Plasmas, 21, 012702 (2014) K. L. Lancaster, M. Sherlock, J. S. Green, C. D. Gregory, P. Hakel, K. U. Akli, F. N . Beg, S. N. Chen, R. R. Freeman, H. Habara, R. Heathcote, D. S. Hey, K. Highbarger, M. H. Key, R. Kodama, K. Krushelnick, H. Nakamura, M. Nakatsutsumi, J. Pasley, R. B. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R. L. Weber, M. S. Wei, N. C. Woolsey, T. Yabuuchi, and P. A. Norreys, Phys. Plasmas 16, 056707, 2009 R. B. Stephens, K. U. Akli, T. Bartal, F. N. Beg, S. Chawla, C. D. Chen, H. Chen, S. Chen, B. Chrisman, R. R. Freeman, D. Hey, M. Key, A. Kemp, J. King, K. Lancaster, S. LePape, A. Link, T. Ma, A. Mackinnon, A. Macphee, P. Norreys, Dustin Offerman, V. Ovchinnikov, J. Pasley, P. Patel, D. Schumacher, Y. Sentoku, Y. Tsui, S. Wilks, L. VanWoerkom, M-S. Wei, and T. Yabuuchi, Plasma and. Fusion Research 4, 016, 2009 S. Le Pape, A. Macphee, D. Hey, P. Patel, A. Mackinnon, M. Key, J. Pasley, M. Wei, S. Chen, T. Ma, F. Beg, N. Alexander, R. Stephens, D. Offerman, A. Link, L. Van-Woerkom, and R. Freeman, Review of Scientific Instruments, 79, 106104, 2008 J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van-Woerkom and R. R. Freeman, IEEE Transactions on Plasma Science, 36, 1128-1129, 2008 M. S. Wei, A. A. Solodov, J. Pasley, R. B. Stephens, D. R. Welch and F. N. Beg, Phys. Plasmas, 15, 083101, 2008 K. U. Akli, S. B. Hansen, A. J. Kemp, R. R. Freeman, F. N. Beg, D. C. Clark, S. D. Chen, D. Hey, S. P. Hatchett, K. Highbarger, E. Giraldez, J. S. Green, G. Gregori, K. L. Lancaster, T. Ma, A. J. Mackinnon, P. Norreys, N. Patel, J. Pasley, C. Shearer, R. B. Stephens, C. Stoeckl, M. Sotrm, W. Theobald, L. D. Van Woerkon, R. Weber and M. H. Key, Physical Review Letters, 100, 165002, 2008 J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van-Woerkom and R. R. Freeman, Phys. Plasmas, 14, 120701, 2007 S. N. Chen, G. Gregori, P. K. Patel, H.-K. Chung, R. G. Evans, R. R. Freeman, E. Garcia Saiz, S. H. Glenzer, S. B. Hansen, F. Y. Khattak, J. A. King, A. J. Mackinnon, M. M. Notley, J. R. Pasley, D. Riley, R. B. Stephens, R. L. Weber, S. C. Wilks and F. N. Beg, Phys. Plasmas, 14, 102701, 2007 J. Pasley and R. Stephens, Phys. Plasmas, 14, 054501, 2007 M. H. Key, K. Akli, F. Beg, M. H. Chen, H.-K. Chung, R. R. Freeman, M. E. Foord, J. S. Green, P. Gu, G. Gregori, H. Habara, S. P. Hatchett, D. Hey, J. M. Hill, J. A. King, R. Kodama, J. A. Koch, K. Lancaster, B. F. Lasinski, B. Langdon, A. J. Mackinnon, C. D. Murphy, P. A. Norreys, N. Patel, P. Patel, J. Pasley, R. A. Snavely, R. B. Stephens, C. Stoeckl, M. Tabak, W. Theobald, K. Tanaka, R. Town, S. C. Wilks, T. Yabuuchi, and B. Zhang, J. Phys IV France 133, 371-378, 2006 R. R. Freeman, K. Akli, F. Beg, R. Betti, S. Chen, D. J. Clark, P. M. Gu, G. Gregori, S. P. Hatchett, D. Hey, K. Highbarger, J. M. Hill, N. Izumi, M. Key, J. A. King, J. A. Koch, B. Lasinski, B. Langdon, A. J. Mackinnon, D. Meyerhofer, N. Patel, P. Patel, J. Pasley, H. S. Park, C. Ren, R. A. Snavely, R. B. Stephens, C. Stoeckl, M. Tabak, R. Town, L. Van Woerkom, R. Weber, S. C. Wilks, and B. B. Zhang, J. Phys. IV France 133, 95-100, 2006 W. Theobald, K. Akli, R. Clarke, J. A. Delettrez, R. R. Freeman, S. Glenzer, J. Green, G. Gregori, R. Heathcote, N. Izumi, J. A. King, J. A. Koch, J. Kuba, K. Lancaster, A. J. MacKinnon, M. Key, C. Mileham, J. Myatt, D. Neely, P. A. Norreys, H.-S. Park, J. Pasley, P. Patel, S. P. Regan, H. Sawada, R. Shepherd, R. Snavely, R. B. Stephens, C. Stoeckl, M. Storm, B. Zhang, and T. C. Sangster, Physics of Plasmas, 13, 043102, 2006 P.K. Patel, M.H. Key, A. J. Mackinnon, R. Barry, M. Borghesi, D. M. Chambers, H. Chen, R. Clarke, C. Damian, R. Eagleton, R. Freeman, S. Glenzer, G. Gregori, R. Heathcote, D. Hey, N. Izumi, S. Kar, J. King, A. Nikroo, A. Niles, H-S. Park, J. Pasley, N. Patel, R. Shepherd, R. A. Snavely, D. Steinman, C. Stoeckl, M. Storm, W. Theobald, R. Town, R. Van Maren, S. C. Wilks and B. Zhang, Plasma Phys. Control. Fusion 47, B833-B840, 2005
 
Description PASLEY- U.S. 
Organisation Lawrence Livermore National Laboratory
Country United States 
Sector Public 
PI Contribution I have participated in three experiments at the Jupiter Laser Facility and assisted in the interpretation, analysis and preparation of publications resulting from these experiments. In addition I was PI for an experiment at the Central Laser Facility in the UK in which my US collaborators participated heavily, providing diagnostics, manpower and simulation expertise and capability.
Collaborator Contribution The JLF and other partner universities and institutions provided the facilities, manpower and diagnostic equipment. LLNL as a whole provided much of the simulation and modelling expertise, particularly colleagues in AX division.
Impact I.A.Bush, A.G.R.Thomas, L.Gartside, S.Sarfraz, E.Wagenaars, J.S.Green, M.Notley, H.Lowe, C.Spindloe, T.Winstone, A.P.L.Robinson, R.Clarke, T.Ma, T.Yabuuchi, M.Wei, F.N.Beg, R.B.Stephens, A.MacPhee, A.J.MacKinnon, M.H.Key, W.Nazarov, M.Sherlock, and J.Pasley, Phys. Plasmas, 21, 012702 (2014) K. L. Lancaster, M. Sherlock, J. S. Green, C. D. Gregory, P. Hakel, K. U. Akli, F. N . Beg, S. N. Chen, R. R. Freeman, H. Habara, R. Heathcote, D. S. Hey, K. Highbarger, M. H. Key, R. Kodama, K. Krushelnick, H. Nakamura, M. Nakatsutsumi, J. Pasley, R. B. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R. L. Weber, M. S. Wei, N. C. Woolsey, T. Yabuuchi, and P. A. Norreys, Phys. Plasmas 16, 056707, 2009 R. B. Stephens, K. U. Akli, T. Bartal, F. N. Beg, S. Chawla, C. D. Chen, H. Chen, S. Chen, B. Chrisman, R. R. Freeman, D. Hey, M. Key, A. Kemp, J. King, K. Lancaster, S. LePape, A. Link, T. Ma, A. Mackinnon, A. Macphee, P. Norreys, Dustin Offerman, V. Ovchinnikov, J. Pasley, P. Patel, D. Schumacher, Y. Sentoku, Y. Tsui, S. Wilks, L. VanWoerkom, M-S. Wei, and T. Yabuuchi, Plasma and. Fusion Research 4, 016, 2009 S. Le Pape, A. Macphee, D. Hey, P. Patel, A. Mackinnon, M. Key, J. Pasley, M. Wei, S. Chen, T. Ma, F. Beg, N. Alexander, R. Stephens, D. Offerman, A. Link, L. Van-Woerkom, and R. Freeman, Review of Scientific Instruments, 79, 106104, 2008 J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van-Woerkom and R. R. Freeman, IEEE Transactions on Plasma Science, 36, 1128-1129, 2008 M. S. Wei, A. A. Solodov, J. Pasley, R. B. Stephens, D. R. Welch and F. N. Beg, Phys. Plasmas, 15, 083101, 2008 K. U. Akli, S. B. Hansen, A. J. Kemp, R. R. Freeman, F. N. Beg, D. C. Clark, S. D. Chen, D. Hey, S. P. Hatchett, K. Highbarger, E. Giraldez, J. S. Green, G. Gregori, K. L. Lancaster, T. Ma, A. J. Mackinnon, P. Norreys, N. Patel, J. Pasley, C. Shearer, R. B. Stephens, C. Stoeckl, M. Sotrm, W. Theobald, L. D. Van Woerkon, R. Weber and M. H. Key, Physical Review Letters, 100, 165002, 2008 J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van-Woerkom and R. R. Freeman, Phys. Plasmas, 14, 120701, 2007 S. N. Chen, G. Gregori, P. K. Patel, H.-K. Chung, R. G. Evans, R. R. Freeman, E. Garcia Saiz, S. H. Glenzer, S. B. Hansen, F. Y. Khattak, J. A. King, A. J. Mackinnon, M. M. Notley, J. R. Pasley, D. Riley, R. B. Stephens, R. L. Weber, S. C. Wilks and F. N. Beg, Phys. Plasmas, 14, 102701, 2007 J. Pasley and R. Stephens, Phys. Plasmas, 14, 054501, 2007 M. H. Key, K. Akli, F. Beg, M. H. Chen, H.-K. Chung, R. R. Freeman, M. E. Foord, J. S. Green, P. Gu, G. Gregori, H. Habara, S. P. Hatchett, D. Hey, J. M. Hill, J. A. King, R. Kodama, J. A. Koch, K. Lancaster, B. F. Lasinski, B. Langdon, A. J. Mackinnon, C. D. Murphy, P. A. Norreys, N. Patel, P. Patel, J. Pasley, R. A. Snavely, R. B. Stephens, C. Stoeckl, M. Tabak, W. Theobald, K. Tanaka, R. Town, S. C. Wilks, T. Yabuuchi, and B. Zhang, J. Phys IV France 133, 371-378, 2006 R. R. Freeman, K. Akli, F. Beg, R. Betti, S. Chen, D. J. Clark, P. M. Gu, G. Gregori, S. P. Hatchett, D. Hey, K. Highbarger, J. M. Hill, N. Izumi, M. Key, J. A. King, J. A. Koch, B. Lasinski, B. Langdon, A. J. Mackinnon, D. Meyerhofer, N. Patel, P. Patel, J. Pasley, H. S. Park, C. Ren, R. A. Snavely, R. B. Stephens, C. Stoeckl, M. Tabak, R. Town, L. Van Woerkom, R. Weber, S. C. Wilks, and B. B. Zhang, J. Phys. IV France 133, 95-100, 2006 W. Theobald, K. Akli, R. Clarke, J. A. Delettrez, R. R. Freeman, S. Glenzer, J. Green, G. Gregori, R. Heathcote, N. Izumi, J. A. King, J. A. Koch, J. Kuba, K. Lancaster, A. J. MacKinnon, M. Key, C. Mileham, J. Myatt, D. Neely, P. A. Norreys, H.-S. Park, J. Pasley, P. Patel, S. P. Regan, H. Sawada, R. Shepherd, R. Snavely, R. B. Stephens, C. Stoeckl, M. Storm, B. Zhang, and T. C. Sangster, Physics of Plasmas, 13, 043102, 2006 P.K. Patel, M.H. Key, A. J. Mackinnon, R. Barry, M. Borghesi, D. M. Chambers, H. Chen, R. Clarke, C. Damian, R. Eagleton, R. Freeman, S. Glenzer, G. Gregori, R. Heathcote, D. Hey, N. Izumi, S. Kar, J. King, A. Nikroo, A. Niles, H-S. Park, J. Pasley, N. Patel, R. Shepherd, R. A. Snavely, D. Steinman, C. Stoeckl, M. Storm, W. Theobald, R. Town, R. Van Maren, S. C. Wilks and B. Zhang, Plasma Phys. Control. Fusion 47, B833-B840, 2005
 
Description PASLEY- U.S. 
Organisation University of California, San Diego (UCSD)
Country United States 
Sector Academic/University 
PI Contribution I have participated in three experiments at the Jupiter Laser Facility and assisted in the interpretation, analysis and preparation of publications resulting from these experiments. In addition I was PI for an experiment at the Central Laser Facility in the UK in which my US collaborators participated heavily, providing diagnostics, manpower and simulation expertise and capability.
Collaborator Contribution The JLF and other partner universities and institutions provided the facilities, manpower and diagnostic equipment. LLNL as a whole provided much of the simulation and modelling expertise, particularly colleagues in AX division.
Impact I.A.Bush, A.G.R.Thomas, L.Gartside, S.Sarfraz, E.Wagenaars, J.S.Green, M.Notley, H.Lowe, C.Spindloe, T.Winstone, A.P.L.Robinson, R.Clarke, T.Ma, T.Yabuuchi, M.Wei, F.N.Beg, R.B.Stephens, A.MacPhee, A.J.MacKinnon, M.H.Key, W.Nazarov, M.Sherlock, and J.Pasley, Phys. Plasmas, 21, 012702 (2014) K. L. Lancaster, M. Sherlock, J. S. Green, C. D. Gregory, P. Hakel, K. U. Akli, F. N . Beg, S. N. Chen, R. R. Freeman, H. Habara, R. Heathcote, D. S. Hey, K. Highbarger, M. H. Key, R. Kodama, K. Krushelnick, H. Nakamura, M. Nakatsutsumi, J. Pasley, R. B. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R. L. Weber, M. S. Wei, N. C. Woolsey, T. Yabuuchi, and P. A. Norreys, Phys. Plasmas 16, 056707, 2009 R. B. Stephens, K. U. Akli, T. Bartal, F. N. Beg, S. Chawla, C. D. Chen, H. Chen, S. Chen, B. Chrisman, R. R. Freeman, D. Hey, M. Key, A. Kemp, J. King, K. Lancaster, S. LePape, A. Link, T. Ma, A. Mackinnon, A. Macphee, P. Norreys, Dustin Offerman, V. Ovchinnikov, J. Pasley, P. Patel, D. Schumacher, Y. Sentoku, Y. Tsui, S. Wilks, L. VanWoerkom, M-S. Wei, and T. Yabuuchi, Plasma and. Fusion Research 4, 016, 2009 S. Le Pape, A. Macphee, D. Hey, P. Patel, A. Mackinnon, M. Key, J. Pasley, M. Wei, S. Chen, T. Ma, F. Beg, N. Alexander, R. Stephens, D. Offerman, A. Link, L. Van-Woerkom, and R. Freeman, Review of Scientific Instruments, 79, 106104, 2008 J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van-Woerkom and R. R. Freeman, IEEE Transactions on Plasma Science, 36, 1128-1129, 2008 M. S. Wei, A. A. Solodov, J. Pasley, R. B. Stephens, D. R. Welch and F. N. Beg, Phys. Plasmas, 15, 083101, 2008 K. U. Akli, S. B. Hansen, A. J. Kemp, R. R. Freeman, F. N. Beg, D. C. Clark, S. D. Chen, D. Hey, S. P. Hatchett, K. Highbarger, E. Giraldez, J. S. Green, G. Gregori, K. L. Lancaster, T. Ma, A. J. Mackinnon, P. Norreys, N. Patel, J. Pasley, C. Shearer, R. B. Stephens, C. Stoeckl, M. Sotrm, W. Theobald, L. D. Van Woerkon, R. Weber and M. H. Key, Physical Review Letters, 100, 165002, 2008 J. Pasley, M. Wei, E. Shipton, S. Chen, T. Ma, F. N. Beg, N. Alexander, R. Stephens, A. G. MacPhee, D. Hey, S. Le Pape, P. Patel, A. Mackinnon, M. Key, D. Offermann, A. Link, E. Chowdhury, L. Van-Woerkom and R. R. Freeman, Phys. Plasmas, 14, 120701, 2007 S. N. Chen, G. Gregori, P. K. Patel, H.-K. Chung, R. G. Evans, R. R. Freeman, E. Garcia Saiz, S. H. Glenzer, S. B. Hansen, F. Y. Khattak, J. A. King, A. J. Mackinnon, M. M. Notley, J. R. Pasley, D. Riley, R. B. Stephens, R. L. Weber, S. C. Wilks and F. N. Beg, Phys. Plasmas, 14, 102701, 2007 J. Pasley and R. Stephens, Phys. Plasmas, 14, 054501, 2007 M. H. Key, K. Akli, F. Beg, M. H. Chen, H.-K. Chung, R. R. Freeman, M. E. Foord, J. S. Green, P. Gu, G. Gregori, H. Habara, S. P. Hatchett, D. Hey, J. M. Hill, J. A. King, R. Kodama, J. A. Koch, K. Lancaster, B. F. Lasinski, B. Langdon, A. J. Mackinnon, C. D. Murphy, P. A. Norreys, N. Patel, P. Patel, J. Pasley, R. A. Snavely, R. B. Stephens, C. Stoeckl, M. Tabak, W. Theobald, K. Tanaka, R. Town, S. C. Wilks, T. Yabuuchi, and B. Zhang, J. Phys IV France 133, 371-378, 2006 R. R. Freeman, K. Akli, F. Beg, R. Betti, S. Chen, D. J. Clark, P. M. Gu, G. Gregori, S. P. Hatchett, D. Hey, K. Highbarger, J. M. Hill, N. Izumi, M. Key, J. A. King, J. A. Koch, B. Lasinski, B. Langdon, A. J. Mackinnon, D. Meyerhofer, N. Patel, P. Patel, J. Pasley, H. S. Park, C. Ren, R. A. Snavely, R. B. Stephens, C. Stoeckl, M. Tabak, R. Town, L. Van Woerkom, R. Weber, S. C. Wilks, and B. B. Zhang, J. Phys. IV France 133, 95-100, 2006 W. Theobald, K. Akli, R. Clarke, J. A. Delettrez, R. R. Freeman, S. Glenzer, J. Green, G. Gregori, R. Heathcote, N. Izumi, J. A. King, J. A. Koch, J. Kuba, K. Lancaster, A. J. MacKinnon, M. Key, C. Mileham, J. Myatt, D. Neely, P. A. Norreys, H.-S. Park, J. Pasley, P. Patel, S. P. Regan, H. Sawada, R. Shepherd, R. Snavely, R. B. Stephens, C. Stoeckl, M. Storm, B. Zhang, and T. C. Sangster, Physics of Plasmas, 13, 043102, 2006 P.K. Patel, M.H. Key, A. J. Mackinnon, R. Barry, M. Borghesi, D. M. Chambers, H. Chen, R. Clarke, C. Damian, R. Eagleton, R. Freeman, S. Glenzer, G. Gregori, R. Heathcote, D. Hey, N. Izumi, S. Kar, J. King, A. Nikroo, A. Niles, H-S. Park, J. Pasley, N. Patel, R. Shepherd, R. A. Snavely, D. Steinman, C. Stoeckl, M. Storm, W. Theobald, R. Town, R. Van Maren, S. C. Wilks and B. Zhang, Plasma Phys. Control. Fusion 47, B833-B840, 2005
 
Description PASLEY-RAL 
Organisation Rutherford Appleton Laboratory
Country United Kingdom 
Sector Public 
PI Contribution I have been actively collaborating with RAL on experiments and simulation activities since 2007. Several of my research students have spent significant periods (e.g. several years) based at RAL working with staff their on joint projects. We have been involved in all aspects of research including experimental setup, conduct, analysis, modelling, interpretation and publishing; we have also conducted extensive modelling based activities independently of the experimental programme. I have also participated via my collaboration with RAL with the European HiPER project.
Collaborator Contribution RAL staff have collaborated extensively with us, providing facility, diagnostics, computer facilities, man-power and expertise (both on the experimental and modelling sides). RAL have also provided both me and my students with extensive financial support over the years to assist in our joint research. I have estimated the direct financial support given, and the figure provided should be taken as an estimate. It covers support of my joint appointment at RAL, as well as financial support for students based at RAL.
Impact C M Brenner, A P L Robinson, K Markey, R H H Scott, R J Gray, M Rosinski, O Deppert, J Badziak, D Batani, J R Davies, [......], J Pasley, M Roth, H.-P Schlenvoigt, C Spindloe, M Tatarakis, T Winstone, J Wolowski, D Wyatt, P Mckenna, D Neely, Applied Physics Letters 02/2014; 104(08):1123. I.A.Bush, A.G.R.Thomas, L.Gartside, S.Sarfraz, E.Wagenaars, J.S.Green, M.Notley, H.Lowe, C.Spindloe, T.Winstone, A.P.L.Robinson, R.Clarke, T.Ma, T.Yabuuchi, M.Wei, F.N.Beg, R.B.Stephens, A.MacPhee, A.J.MacKinnon, M.H.Key, W.Nazarov, M.Sherlock, and J.Pasley, Phys. Plasmas, 21, 012702 (2014) T.E.Fox, A.P.L.Robinson, J.Pasley, Physics of Plasmas, 20, 122707, (2013) A.P.L.Robinson, H.Schmitz, J. Pasley, Physics of Plasmas, 20, 122701, (2013) Batani, D., Gizzi, L. A., Koester, P., Labate, L., Honrubia, J., Antonelli, L., Morace, A., Volpe, L., Santos, J. J., Schurtz, G., Hulin, S., Ribeyre, X., Nicolai, P., Vauzour, B., Dorchies, F., Nazarov, W., Pasley, J., Richetta, M., Lancaster, K., et al, Nukleonika. 57, 1, p. 3-10. 8, (2012) R. H. H. Scott, C. Beaucourt, H.-P. Schlenvoigt, K. Markey, K. L. Lancaster, C. P. Ridgers, C. M. Brenner, J. Pasley, R. J. Gray, I. O. Musgrave, A. P. L Robinson, [...], P. McKenna, D. Neely, S. J. Rose, and P. A. Norreys, Phys. Rev. Lett. 109, 015001 (2012) D. Batani, M. Koenig, S. Baton, F. Perez, [...] W. Nazarov, J. Pasley, M. Richetta, K. Lancaster, Ch. Spindloe, M. Tolley, D. Neely, M. Kozlova, J. Nejdl, B. Rus, J. Wolowski, J. Badziak and F. Dorchies, Plasma Phys. Control. Fusion 53, 124041, (2011) B. Vauzour, J.J. Santos, D. Batani, S.D. Baton, M. Koenig, [...] W. Nazarov, J. Pasley, R. Ramis, Y. Rhee, C. Regan, X. Ribeyre, M. Richetta, F. Serres, H.-P. Schlenvoigt, G. Schurtz, A. Sgattoni, C. Spindloe, X. Vaisseau, L. Volpe, V. Yahia, Nucl. Instrum. Methods A 653, 176-180, 2011 F. Perez, A. Debayle, J. Honrubia, M. Koenig, D. Batani, S.D. Baton, F.N. Beg, C. Benedetti, E. Brambrink, S. Chawla, F. Dorchies, C. Fourment, M. Galimberti, L.A. Gizzi, L. Gremillet, R. Heathcote, D.P. Higginson, S. Hulin, R. Jafer, P. Koester, L. Labate, K.L. Lancaster, A.J. Mackinnon, A.G. MacPhee, W. Nazarov, P. Nicolai, J. Pasley, R. Ramis, M. Richetta, J.J. Santos, A. Sgattoni, C. Spindloe, B. Vazour, T. Vinci and L. Volpe, Phys. Rev. Lett., 107, 065004, (2011) B. Vauzour, F. Perez, L. Volpe, K. Lancaster, Ph. Nicolai, D. Batani, S.D. Baton, F.N. Beg, C. Benedetti, E. Brambrink, S. Chawla, F. Dorchies, C. Fourment, M. Galimberti, L. A. Gizzi, R. Heathcote, D.P. Higginson, S. Hulin, R. Jafer, P. Koester, L. Labate, A. J. MacKinnon, A.G. MacPhee, W. Nazarov, J. Pasley, C. Regan, X. Ribeyre, M. Richetta, G. Schurtz, A. Sgattoni, and J.J. Santos, Phys. Plasmas, 18, 043108, 2011 L. Volpe, D. Batani, B. Vauzour, Ph. Nicolai, J. J. Santos, C. Regan, A. Morace, F. Dorchies, C. Fourment, S. Hulin, F. Perez, S. Baton, K. Lancaster, M. Galimberti, R. Heathcote, M. Tolley, Ch. Spindloe, P. Koester, L. Labate, L. A. Gizzi, C. Benedetti, A. Sgattoni, M. Richetta, J. Pasley, F. Beg, S. Chawla, D. P. Higginson, and A. G. MacPhee, Phys. Plasmas 18, 012704 (2011) L. Volpe, R. Jafer, B. Vauzour, Ph. Nicolai, J. J. Santos, F. Dorchies, C. Fourment, S. Hulin, C. Regan, F. Perez, S. Baton, K. Lancaster, M. Galimberti, R. Heathcote, M. Tolley, Ch. Spindloe, W. Nazarov, P. Koester, L. Labate, L. A. Gizzi, C. Benedetti, A. Sgattoni, M. Richetta, J. Pasley, F. N. Beg, S. Chawla, D. P. Higginson, A. G. MacPhee and D. Batani, Plasma Phys. Control. Fusion 53 (2011) 032003 (9pp) N. Booth, R. J. Clarke, D. Doria, L. A. Gizzi, G. Gregori, P. Hakel, P. Koester, L. Labate, T. Levato, B. Li, M. Makita, R. C. Mancini, J. Pasley, P. P. Rajeev, D. Riley, A. P. L. Robinson, E. Wagenaars, J. N. Waugh, N. C. Woolsey, Nucl. Instr. and Meth A A653, 137-139 (2011) R. Jafer, L. Volpe, D. Batani, M. Koenig, S. Baton, E. Brambrink, F. Perez, F. Dorchies, J. J. Santos, C. Fourment, S. Hulin, P. Nicolai, B. Vazour, K. Lancaster, M. Galimberti, R. Heathcote, M. Tolley, Ch. Spindloe, P. Koester, L. Labate, L. Gizzi, C. Benedetti, A. Sgattoni, M. Richetta, J. Pasley, F. Beg, S. Chawla, D. Higginson, A. Mackinnon, A. McPhee, Duck-Hee Kwon and Yongjoo Rhee, Journal of the Korean Physical Society, 57, 2, 305-310, 2010 J. Pasley, PRAMANA- Journal of Physics, 75, 5, pp759-767, 2010 I. A. Bush, R. Kingham, A. P. L. Robinson and J. Pasley, Plasma Phys. Control. Fusion, 52, 125007, 2010 N. L. Kugland, G. Gregori, S. Bandyopadhyay, C. M. Brenner, C. R. D. Brown, C. Constantin, S. H. Glenzer, F. Y. Khattak, A. L. Kritcher, C. Niemann, A. Otten, J. Pasley, A. Pelka, M. Roth, C. Spindloe, and D. Riley, Phys. Rev. E 80, 066406, 2009 F. Perez, M. Koenig, D. Batani, S. D. Baton, F. N. Beg, C. Benedetti, E. Brambrink, S. Chawla, F. Dorchies, C. Fourment, M. Galimberti, L. A. Gizzi, R. Heathcote, D. P. Higginson, S. Hulin, R. Jafer, P. Koester, L. Labate, K. Lancaster, A. J. MacKinnon, A. G. McPhee, W. Nazarov, P. Nicolai, J. Pasley, A. Ravasio, M. Richetta, J. J. Santos, A. Sgattoni, C. Spindloe, B. Vausour, and L. Volpe, Plasma Phys. and Control. Fusion, 51, 124035, 2009 K. L. Lancaster, M. Sherlock, J. S. Green, C. D. Gregory, P. Hakel, K. U. Akli, F. N . Beg, S. N. Chen, R. R. Freeman, H. Habara, R. Heathcote, D. S. Hey, K. Highbarger, M. H. Key, R. Kodama, K. Krushelnick, H. Nakamura, M. Nakatsutsumi, J. Pasley, R. B. Stephens, M. Storm, M. Tampo, W. Theobald, L. Van Woerkom, R. L. Weber, M. S. Wei, N. C. Woolsey, T. Yabuuchi, and P. A. Norreys, Phys. Plasmas 16, 056707, 2009 K. L. Lancaster, J. Pasley, J. S. Green, D. Batani, S. Baton, R. G. Evans, L. Gizzi, R. Heathcote, C. Hernandez Gomez, M. Koenig, P. Koester, A. Morace, I. Musgrave, P. A. Norreys, F. Perez, J. N. Waugh, and N. C. Woolsey, Phys. Plasmas 16, 056707, 2009 K. U. Akli, S. B. Hansen, A. J. Kemp, R. R. Freeman, F. N. Beg, D. C. Clark, S. D. Chen, D. Hey, S. P. Hatchett, K. Highbarger, E. Giraldez, J. S. Green, G. Gregori, K. L. Lancaster, T. Ma, A. J. Mackinnon, P. Norreys, N. Patel, J. Pasley, C. Shearer, R. B. Stephens, C. Stoeckl, M. Sotrm, W. Theobald, L. D. Van Woerkon, R. Weber and M. H. Key, Physical Review Letters, 100, 165002, 2008
Start Year 2007
 
Description PASLEY-TIFR 
Organisation Tata Institute of Fundamental Research
Country India 
Sector Public 
PI Contribution Myself and my research students have collaborated with TIFR on a number of research projects since 2009. This has resulted in a number of high profile publications. Our contributions have included both participation in experiments, assistance with diagnostic development, analysis of experimental results as well as interpretation and modelling.
Collaborator Contribution TIFR have hosted us at their laser facility, providing the bulk of the man-power and expertise. They have also participated in joint experiments at the STFC RAL Central Laser Facility with us, where they provided man-power and diagnostic expertise and equipment.
Impact Amitava Adak, David R. Blackman, Gourab Chatterjee, Prashant Kumar Singh, Amit D. Lad, P. Brijesh, A. P. L. Robinson, John Pasley and G. Ravindra Kumar, Phys. Plasmas 21, 062704 (2014) G. Chatterjee, P. K. Singh, S. Ahmed, A. P. L. Robinson, A. D. Lad, S. Mondal, V. Narayanan, I. Srivastava, N. Koratkar, J. Pasley, A. K. Sood, and G. R. Kumar, Phys. Rev. Lett. 108, 235005 (2012) S. Mondal, A. D. Lad, S. Ahmed, V. Narayanan, J. Pasley, P. P. Rajeev, A. P. L. Robinson, G. Ravindra Kumar, PRL 105, 105002, 2010
Start Year 2009