Beam energy spread measurement at the VEPP-4M Electron-Positron Collider

Киселев, В. А.; Muchnoi, N.Yu.; Meshkov, O.; Smaluk, Victor; Zhilich, V.; Журавлев, А. Н.

doi:10.1088/1748-0221/2/06/p06001

Cited by 10 publications

(4 citation statements)

References 5 publications

(7 reference statements)

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“…The previous version of similar diagnostics has been successfully developed at the VEPP-4M electron-positron collider [15][16][17]. This machine operates in a 2 × 2 bunch mode.…”

Section: Measurement Of Transverse Beam Profile With Linear Apd Arraymentioning

confidence: 99%

A new station for optical observation of electron beam parameters at electron storage ring SIBERIA-2

et al. 2016

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A: A new station for optical observation of electron beam parameters at the electron storage ring SIBERIA-2 is dedicated for measurement of the transverse and longitudinal size of electron bunches with the use of the synchrotron radiation (SR) visible spectrum in single-bunch and multibunch modes and for study of time-dependent behavior of individual electron bunches with changing accelerator parameters. The article briefly describes the main components of the diagnostics and the experimental results. K: Beam-line instrumentation (beam position and profile monitors; beam-intensity monitors; bunch length monitors); Instrumentation for particle accelerators and storage rings -high energy (linear accelerators, synchrotrons); Instrumentation for synchrotron radiation accelerators; Photon detectors for UV, visible and IR photons (solid-state) (PIN diodes, APDs, Si-PMTs, G-APDs, CCDs, EBCCDs, EMCCDs etc) 1Corresponding author.

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“…The previous version of similar diagnostics has been successfully developed at the VEPP-4M electron-positron collider [15][16][17]. This machine operates in a 2 × 2 bunch mode.…”

Section: Measurement Of Transverse Beam Profile With Linear Apd Arraymentioning

confidence: 99%

A new station for optical observation of electron beam parameters at electron storage ring SIBERIA-2

et al. 2016

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“…A number of experiments on physics of accelera tors was conducted using MAPMT [32][33][34]. One of examples of the instrument operation is the analysis of beam behavior under kicker impact.…”

Section: Diagnostics Of Transverse Beam Profile With Turn By Turn Timmentioning

confidence: 99%

Methods of optical diagnostics of electron-positron beams and interaction between plasma and high-current electron beam

et al. 2012

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Optical diagnostics is widely used, both in plasma physics experiments and in measuring param eters of electron and positron beams in accelerators. In doing so, the approaches with the same methodolog ical base are often applied, which is explained by similarity of certain properties of objects under study despite the fact that these fields of physics are absolutely specific and require using the specialized techniques. The possibility of close contacts and cooperation among scientists concerned with similar problems in different fields of physics contributes to the fruitful exchange of ideas and helps to overcome these problems. It is espe cially characteristic of the Budker Institute of Nuclear Physics, Siberian Branch of Russian Academy of Sci ences, which is famous for pioneering works in the field of electron-positron colliders and controlled ther monuclear fusion. The first part of this paper presents a review of optical diagnostics of the stationary beam parameters in cyclic accelerators of electrons and positrons. The only techniques considered are those that became the recognized tools at colliders and storage rings of the latest generation, without which the routine operation of the facility is difficult to imagine. The second part of the paper describes optical diagnostics used in experiments of heating the plasma by a high current electron beam.

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“…An example illustrating the decoherence of measured vertical oscillation of the VEPP-4M beam is presented in figure 4. This measurement has been performed using the fast beam profile monitor [27] for the experimental study of the VEPP-4M beam energy spread [28]. High sensitivity of the device provides good measurement accuracy at the low beam current (10 − 30 µA), when the collective effects are practically negligible.…”

Section: Jinst 7 P01007mentioning

confidence: 99%

Feedback for suppression of single-bunch transverse instability in electron-positron storage rings

et al. 2012

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Transverse head-tail instability is a severe limitation of a single-bunch beam current in circular accelerators. Applicability and efficiency of feedbacks for suppression of the instability is analyzed. Both chromatic and nonlinear effects have been taken into account to understand the processes of excitation and damping of the instability. Analytical estimations are compared with the results of experiments and numerical simulations. A feedback system has been developed, installed and commissioned at the VEPP-4M electron-positron collider. An original scheme of the kicker powering has been developed to provide the necessary performance with minimal expenses. Real-time digital data processing performed by a code running in an FPGA module provides high efficiency and flexibility of the system. During the system commissioning, a more than threefold increase of intensity of the VEPP-4M single-bunch beam has been achieved.

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Beam energy spread measurement at the VEPP-4M Electron-Positron Collider

Cited by 10 publications

References 5 publications

A new station for optical observation of electron beam parameters at electron storage ring SIBERIA-2

A new station for optical observation of electron beam parameters at electron storage ring SIBERIA-2

Methods of optical diagnostics of electron-positron beams and interaction between plasma and high-current electron beam

Feedback for suppression of single-bunch transverse instability in electron-positron storage rings

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