$Direct Observation of Incoherent Cherenkov Diffraction Radiation in the Visible Range; Physical Review Letters; Vol. 121, iss. 5$

Direct Observation of Incoherent Cherenkov Diffraction Radiation in the Visible Range; Physical Review Letters; Vol. 121, iss. 5

Bibliografiske detaljer
Parent link:	Physical Review Letters Vol. 121, iss. 5.— 2018.— [054802, 6 p.]
Institution som forfatter:	Национальный исследовательский Томский политехнический университет Исследовательская школа физики высокоэнергетических процессов
Andre forfattere:	Kieffer R., Bartnik L., Bergamaschi M., Bleko V. V. Vitold Vladislavovich, Billing M. Michael, Bobb L. M. Lorraine, Conway J. V., Forster M. J., Karataev P. V. Pavel Vladimirovich, Konkov (Kon'kov) A. S. Anatoliy Sergeevich, Jones R. O. Robertg, Lefevre T. Thibaut, Markova J. S., Mazzoni S. Stefano, Potylitsyn A. P. Alexander Petrovich, Fuentes P. Y. Padilla, Shanks J. P., Wang S.
Summary:	Title screen We report on the observation of incoherent Cherenkov radiation emitted by a 5.3 GeV positron beam circulating in the Cornell electron-positron storage ring as the beam passes in the close vicinity of the surface of a fused silica radiator (i.e., at a distance larger than 0.8 mm). The shape of the radiator was designed in order to send the Cherenkov photons towards the detector, consisting of a compact optical system equipped with an intensified camera. The optical system allows both the measurements of 2D images and angular distribution including polarization study. The corresponding light intensity has been measured as a function of the distance between the beam and the surface of the radiator and has shown a good agreement with theoretical predictions. For highly relativistic particles, a large amount of incoherent radiation is produced in a wide spectral range. A light yield of 0.8×10−3 photon per particle per turn has been measured at a wavelength of 600±10 nm in a 2 cm long radiator and for an impact parameter of 1 mm. This will find applications in accelerators as noninvasive beam diagnostics for both leptons and hadrons. Режим доступа: по договору с организацией-держателем ресурса
Sprog:	engelsk
Udgivet:	2018
Fag:	электронный ресурс труды учёных ТПУ некогерентное излучение черенковское излучение дифракционные излучения наблюдение
Online adgang:	https://doi.org/10.1103/PhysRevLett.121.054802
Format:	MixedMaterials Electronisk Book Chapter
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=660095

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