Zobrazeno 1 - 10
of 74
pro vyhledávání: '"Ravi P. Singhal"'
Autor:
J. Magill, Paul McKenna, L. Robson, R.J. Clarke, Mingsheng Wei, S. Shimizu, R Schenkel, Peter Norreys, Ravi P. Singhal, Karl Krushelnick, P. M. Nilson, J Rebizant, J. Galy, Kenneth W. D. Ledingham, Stuart Mangles, J. M. Yang, T. McCanny
Intense laser–plasma interactions produce high brightness beams of gamma rays, neutrons and ions and have the potential to deliver accelerating gradients more than 1000 times higher than conventional accelerator technology, and on a tabletop scale.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da50973c36756b6157bfe0f60823fe71
https://ora.ox.ac.uk/objects/uuid:80febba7-e9b1-4ec8-a665-3b51e9ae7b6f
https://ora.ox.ac.uk/objects/uuid:80febba7-e9b1-4ec8-a665-3b51e9ae7b6f
Autor:
Peter Norreys, David Neely, L. Robson, T. McCanny, Kenneth W. D. Ledingham, R. J. Clarke, J. M. Yang, Ravi P. Singhal, Karl Krushelnick, S. Shimizu, Mingsheng Wei, Paul McKenna
Publikováno v:
Journal of Applied Physics. 96:6912-6918
Tens of MeV proton beams have been generated by interactions of the VULCAN petawatt laser with foil targets and used to induce nuclear reactions in zinc and boron samples. The numbers of 11C, 66Ga, 67Ga, 68Ga, 61Cu, 62Zn, 63Zn, and 69mZn nuclei have
Publikováno v:
Science. 300:1107-1111
The amplification of laser light to generate powers large enough to affect the nucleus has been the desire of scientists since the invention of the laser 40 years ago. Many lasers, including tabletop varieties, now have pulse powers greater than the
Autor:
Ravi P. Singhal, John G. Philis, A. J. Langley, T. McCanny, Constantine Kosmidis, Kenneth W. D. Ledingham, S. M. Hankin, Philip F. Taday, Paraskevas Tzallas
Publikováno v:
Chemical Physics Letters. 343:91-98
The interaction of thiazole and thiazolidine with a strong (∼ 2×10 16 W/cm 2 ) fs laser field has been studied at λ=790 nm by means of time-of-flight (TOF) mass spectrometry. The observed relative abundance of the doubly charged intact parent ion
Autor:
A. J. Langley, P. Graham, X. Fang, Ravi P. Singhal, Philip F. Taday, Constantine Kosmidis, T. McCanny, S. M. Hankin, Kenneth W. D. Ledingham
Publikováno v:
Laser and Particle Beams. 19:187-193
Utilizing an ultraintense (1016 W cm−2) fs laser, the laser/matter interaction of the tetrahedral CH3I molecule is investigated. A mass spectrum and the angular distributions of fragment ions arising from Coulomb explosion of molecular ions, obtain
Autor:
X. Fang, P. Graham, Kenneth W. D. Ledingham, Philip F. Taday, Paraskevas Tzallas, Constantine Kosmidis, A. J. Langley, Ravi P. Singhal, S. M. Hankin, T. McCanny
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 33:3779-3794
The mass spectra and angular distributions of fragment ions arising from a Coulomb explosion of highly charged parent nitrous oxide ions, obtained in the femtosecond regime (~1016 W cm-2), are investigated. The N ion angular distributions from 14N2O
Autor:
A. J. Langley, Kenneth W. D. Ledingham, Paraskevas Tzallas, P. Graham, Constantine Kosmidis, Ravi P. Singhal, T. McCanny, David J. Smith, X. Fang, Philip F. Taday
Publikováno v:
Laser and Particle Beams. 18:417-432
The nonlinear interaction of molecular matter with the intense field of a linearly-polarized laser beam, allows the study of not only the ionization dynamics of the parent molecule, but also the angular distribution of the exploding fragments. This i
Autor:
David J. Smith, Philip F. Taday, X. Fang, Constantine Kosmidis, A. J. Langley, T. McCanny, P. Graham, Kenneth W. D. Ledingham, Paraskevas Tzallas, S. M. Hankin, Ravi P. Singhal
Publikováno v:
Journal of Physics B: Atomic, Molecular and Optical Physics. 32:5557-5574
The nonlinear interaction of the triatomic molecules CS2 and CO2 with the intense field of a linearly polarized laser beam of femtosecond (fs) pulse duration, was used to study the ionization and dissociation of the parent molecule. The fragment ion
Autor:
A. J. Langley, Kenneth W. D. Ledingham, Philip F. Taday, Paraskevas Tzallas, Hamdi Şükür Kiliç, P. Graham, Constantine Kosmidis, Ravi P. Singhal, T. McCanny, David J. Smith
Publikováno v:
Rapid Communications in Mass Spectrometry. 13:1366-1373
With the development of high intensity femtosecond lasers, the ionisation and dissociation dynamics of molecules has become an area of considerable interest. Using the technique of femtosecond laser mass spectrometry (FLMS), the molecules carbon disu
Autor:
P. Graham, X. Fang, David J. Smith, Kenneth W. D. Ledingham, Philip F. Taday, T. McCanny, A. J. Langley, Ravi P. Singhal
Publikováno v:
Rapid Communications in Mass Spectrometry. 13:1390-1397
The potential of femtosecond laser time-of-flight mass spectrometry (FLMS) for uniform quantitative analysis of molecules has been investigated. Various samples of molecular gases and vapours have been studied, using ultra-fast ( approximately 50 fs)