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Proceedings Paper

Picosecond streak-cameras for bunch diagnostics in accelerators
Author(s): N. S. Vorobiev; P. B. Gornostaev; V. L. Dorokhov; V. N. Korchuganov; V. I. Lozovoi; O. I. Meshkov; Xiaochao Ma; D. A. Nikiforov; A. V. Smirnov; E. V. Shashkov; M. Ya. Schelev; A. I. Stirin; A. G. Valentinov; A. K. Vereshchagin
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Paper Abstract

Temporal parameters of synchrotron pulse radiation at damping ring (DP) installation of VEPP-5 type were measured with the help of PS-1/S1 picosecond streak camera having 1.5 ps time resolution. These measurements were proceeded within 400-900 nm spectral range. It has been shown that our streak camera may record either a train of electron bunches with ns-duration or internal structure inside a single bunch. We were able to record the distance ~ 1.5 ns between separate bunches as well as their amplitude, which depends on particle numbers inside a bunch. Depending on linear accelerator mode of operation it was possible to define a single bunch duration, which was deviated within the range of 20-100 ps. The temporal structure of a single bunch was measured with 1.5 ps time accuracy. As a result, the VEPP-5 damping ring parameters were optimized, and particles injection conditions were improved. In addition, we have measured the temporal parameters of Vavilov-Cherenkov radiation (VCR) emitted by electron beam of linear accelerator. Our results provided important information on electron bunches formation and their quality inside linear accelerator before electrons injection inside a damping ring. Another series of experiments were done at VEPP-4M electron-positron collider. The dependence of beam length of the beam current measured with streak-camera allowed us to compute the wide-band impedance of the accelerator. The same data were obtained at Siberia-2 synchrotron radiation source (NRC “Kurchatov Institute”, Moscow).

Paper Details

Date Published: 20 February 2017
PDF: 6 pages
Proc. SPIE 10328, Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics, 103280N (20 February 2017); doi: 10.1117/12.2268720
Show Author Affiliations
N. S. Vorobiev, A. M. Prokhorov General Physics Institute (Russian Federation)
P. B. Gornostaev, A. M. Prokhorov General Physics Institute (Russian Federation)
V. L. Dorokhov, Budker Institute of Nuclear Physics (Russian Federation)
V. N. Korchuganov, Kurchatov Institute (Russian Federation)
V. I. Lozovoi, A. M. Prokhorov General Physics Institute (Russian Federation)
O. I. Meshkov, Budker Institute of Nuclear Physics (Russian Federation)
Xiaochao Ma, Novosibirsk State Univ. (Russian Federation)
D. A. Nikiforov, Budker Institute of Nuclear Physics (Russian Federation)
A. V. Smirnov, A. M. Prokhorov General Physics Institute (Russian Federation)
E. V. Shashkov, A. M. Prokhorov General Physics Institute (Russian Federation)
M. Ya. Schelev, A. M. Prokhorov General Physics Institute (Russian Federation)
A. I. Stirin, Kurchatov Institute (Russian Federation)
A. G. Valentinov, Kurchatov Institute (Russian Federation)
A. K. Vereshchagin, A. M. Prokhorov General Physics Institute (Russian Federation)


Published in SPIE Proceedings Vol. 10328:
Selected Papers from the 31st International Congress on High-Speed Imaging and Photonics
T. Goji Etoh; Hiroyuki Shiraga, Editor(s)

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