Non-destructive singlepass monitor of longitudinal charge distribution in an ultrarelativistic electron bunch

Logatchov, P. V.; Bak, P. A.; Starostenko, A. A.; Dikansky, N.S.; Tupikov, V.; Gubin, K. V.; Mishnev, V.; Korabelnikov, M.B.; Fedotov, M. G.

doi:10.1109/pac.1999.794408

Cited by 5 publications

(5 citation statements)

References 2 publications

(1 reference statement)

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“…Therefore each method has own area of application. As example the linear accelerator where our streak camera has been tested has also Electron Beam Probe [8]. Using this devise it is very easy tune up the single bunch regime on the accelerator.…”

Section: Short Review Of Longitudinal Dynamics Measurements On Accelementioning

confidence: 99%

Test of streak camera with high photoelectron beam density and energy

et al. 2007

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Streak camera with spiral scanning will allow measuring a single light signal with duration up to ten nanoseconds with sub-picoseconds time resolution during all signal duration by means of using the whole 2D surface of screen. For creation such a streak camera it is necessary to have a high density of photoelectron beam in order to have small beam size and enough quantity of electrons in the resolution element. But the beam density increasing is limited by different effects including temperature relaxation. Quite the contrary in typical streak cameras the beam density is reduced down to single photoelectrons in the resolution element and then the number of electrons is integrated either on recurring signal or along streak. Another way is the significant increase of electrons energy. This idea has been realized in the streak camera with photoelectron energy up to 90kV and circular scanning by means of high quality RF cavity. The results of testing of this streak camera are presented. The design of streak camera with spiral scanning is presented.

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Section: Short Review Of Longitudinal Dynamics Measurements On Accelementioning

confidence: 99%

Test of streak camera with high photoelectron beam density and energy

et al. 2007

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“…The concept of a probe beam of charged particles to determine a charge distribution has been around since at least the early 1970's [2][3][4]. Several conceptual and experimental devices have been associated with accelerators around the world [5][6][7][8][9]. An operational device is presently in the accumulator ring at the Spallation Neutron Source at Oak Ridge National Lab [10].…”

Section: Introductionmentioning

confidence: 99%

Mirascope Luminescent Beam Profile Monitor

Thurman‐Keup

2019

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The current program at Fermilab involves the construction of a new superconducting linear accelerator (LINAC) to replace the existing warm version. The new LINAC, together with other planned improvements, is in support of proton beam intensities in the Main Injector (MI) that will exceed 2 MW. Measuring the transverse profiles of these high intensity beams in a ring requires non-invasive techniques. The MI uses ionization profile monitors as its only profile system. An alternative technique involves measuring the deflection of a probe beam of electrons with a trajectory perpendicular to the proton beam. This type of device was installed in MI and initial studies of it have been previously presented. This paper will present the status and recent studies of the device utilizing different techniques.

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“…Among these labs, TRIUMF [6], Lawrence Berkeley National Laboratory (LBNL) citebib7, the US Spallation Neutron Source (SNS) [8][9][10] and Fermi National Accelerator Laboratory (FNAL) [11,12] use electron beams as a probe to detect ion beam profiles. The Budker Institute of Nuclear Physics (BINP) [13][14][15][16] in Russia uses electron beams to measure ultra-relativistic electron bunch length and beam distribution. In addition, some labs, e.g.…”

Section: Introductionmentioning

confidence: 99%

Beam distribution reconstruction simulation for electron beam probe

et al. 2017

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An electron beam probe (EBP) is a detector which makes use of a low-intensity and low-energy electron beam to measure the transverse profile, bunch shape, beam neutralization and beam wake field of an intense beam with small dimensions. While it can be applied to many aspects, we limit our analysis to beam distribution reconstruction. This kind of detector is almost non-interceptive for all of the beam and does not disturb the machine environment. In this paper, we present the theoretical aspects behind this technique for beam distribution measurement and some simulation results of the detector involved. First, a method to obtain a parallel electron beam is introduced and a simulation code is developed. An EBP as a profile monitor for dense beams is then simulated using the fast scan method for various target beam profiles, including KV distribution, waterbag distribution, parabolic distribution, Gaussian distribution and halo distribution. Profile reconstruction from the deflected electron beam trajectory is implemented and compared with the actual profile, and the expected agreement is achieved. Furthermore, as well as fast scan, a slow scan, i.e. step-by-step scan, is considered, which lowers the requirement for hardware, i.e. Radio Frequency deflector. We calculate the three-dimensional electric field of a Gaussian distribution and simulate the electron motion in this field. In addition, a fast scan along the target beam direction and slow scan across the beam are also presented, and can provide a measurement of longitudinal distribution as well as transverse profile simultaneously. As an example, simulation results for the China Accelerator Driven Sub-critical System (CADS) and High Intensity Heavy Ion Accelerator Facility (HIAF) are given. Finally, a potential system design for an EBP is described.

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Non-destructive singlepass monitor of longitudinal charge distribution in an ultrarelativistic electron bunch

Cited by 5 publications

References 2 publications

Test of streak camera with high photoelectron beam density and energy

Test of streak camera with high photoelectron beam density and energy

Mirascope Luminescent Beam Profile Monitor

Beam distribution reconstruction simulation for electron beam probe

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