Laser Diagnostics of Picosecond Streak Tubes Supplied with Fast-Response Phosphor Screens

Autor: T. P. Kulichenkova, Yu. M. Mikhal’kov, V. I. Lozovoi, V. A. Makushina, Nikolai S Vorob'ev, A V Smirnov, G. P. Levina, K. A. Vereschagin, Oleg Meshkov, M. Ya. Schelev, P. B. Gornostaev, Zoya M. Semichastnova, S. R. Ivanova, E. I. Zinin, E. V. Shashkov
Rok vydání: 2014
Předmět:
Zdroj: Journal of Russian Laser Research. 35:617-622
ISSN: 1573-8760
1071-2836
DOI: 10.1007/s10946-014-9469-5
Popis: To improve operation parameters (S/N ratio, dynamics range, time resolution, etc.) of picosecond streak tubes, the traditional P20/P43 phosphor screens can be replaced by the others (P46/P47) having much faster decay time of the luminescence output. We provide comparative dynamic measurements of the home-made phosphor screens inside the picosecond PIF-01 streak tubes under illumination of their photocathodes by a single picosecond laser pulse or a train of picosecond laser pulses. We show that the shortest measured decay time for made-in-Russia phosphor screens (Y3Al5O12:Ce) is close to several hundreds of nanoseconds not only at a half-intensity level but also at a level of 10−3 and even smaller. Furthermore, the photoelectron-to-photon conversion factor is not drastically smaller than in the traditional phosphor materials. This means that application of streak tubes supplied with fast-response phosphor screens may substantially improve the tube capabilities in the accumulation mode, and this is very important for time-resolved diagnostics of electron bunches in accelerators, where continuous accumulation of repetitive signals is needed.
Databáze: OpenAIRE
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