Relativistic laser interactions with preformed plasma channels and gamma-ray measurements
Autori: Gizzi LA., Galimberti M., Giulietti A., Giulietti D., Tomassini P., Borghesi M., Campbell DH., Schiavi A., Willi O.
Affiliazione autori: Univ London Imperial Coll Sci Technol & Med, London SW7 2BZ, England;
Queens Univ Belfast, Dept Pure & Appl Phys, Belfast BT7 1NN, Antrim North Ireland;
INFM, Pisa, Italy;
Univ Pisa, Dipartimento Fis, Pisa, Italy;
CNR, Area Ric, IFAM, Intense Laser Irradiat Lab, I-56100 Pisa, Italy
Abstract: The propagation of a 1-ps laser pulse at intensities exceeding 10(19) Wcm(-2) in a low-density plasma channel was experimentally tested. The channel was produced by a lower intensity preceding pulse of the same duration. Plasma electrons were accelerated during the propagation of the main pulse, and high energy gamma -ray detectors were used to detect their bremsstrahlung emission. The gamma -ray yield was studied for different channel conditions, by varying the delay between the channel forming pulse and the high intensity pulse. These results are correlated with the interferograms of the propagation region into the plasma.
Giornale/Rivista: LASER AND PARTICLE BEAMS
Volume: 19 (2) Da Pagina: 181 A: 186
Parole chiavi: gamma -rayDOI: 10.1017/S0263034601192025Citazioni: 5dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2021-09-19Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui