Experimental results from a microwave cavity beam position monitor

Балакин, В.Е.; Bazhan, A.I.; Lunev, P.A.; Solyak, N.; Vogel, V.; Zhogolev, P.; Lisitsyn, A.A.; Yakimenko, V.

doi:10.1109/pac.1999.795732

Cited by 13 publications

(7 citation statements)

References 2 publications

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“…A system with roughly appropriate parameters, but with a rather large loss factor, has been tested several places [9] and we present here results from tests now underway at the ATF, using the damped, extracted ATF beam. The system uses C-band TM110 dipole mode cavities, designed and constructed at the Budker Institute, coupled to a simple two stage heterodyne down-mixer.…”

Section: Ultra-high Resolution Beam Position Monitorsmentioning

confidence: 99%

Future Developments in Electron Linac Diagnostics

Ross¹

2005

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The next generation of electron linacs will fill two different roles:1.ultra-low emittance, very high power accelerators for linear colliders and 2.ultra-short bunch, high stability accelerators for SASE X-ray production.In either case, precision control based on non-invasive, reliable, beam instrumentation will be required. For the linear collider, low emittance transport is an important concern for both warm and superconducting linacs. Instrumentation will be used for control and diagnostics will be used to validate emittance preserving strategies, such as beam based alignment and dispersion -free steering. Tests at the KEK ATF and the SLAC FFTB have demonstrated the required performance of beam position and beam size monitors. Linacs intended for FEL's will require precision bunch length diagnostics because of expected non-linear micro-bunching processes. A wide variety of devices are now in development at FEL prototypes, including TTF2 at DESY and SPPS at SLAC. We present a review of the new diagnostic systems.

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Section: Ultra-high Resolution Beam Position Monitorsmentioning

confidence: 99%

Future Developments in Electron Linac Diagnostics

Ross¹

2005

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“…The BPM does feature a novel design for coupling the signals out [3,4]. A rectangular waveguide at right angles to the cavity intercepts the cavity only at the corner; coupling is through the magnetic field.…”

Section: Design and Fabricationmentioning

confidence: 99%

An X-Band Cavity for a High Precision Beam Position Monitor

Johnson¹,

Li²,

Naito³

et al. 2003

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The next generation of accelerators will require increasingly precise control of beam position. For example designs for the next linear collider require beamposition monitors (BPMs) with 300 nm resolution. The accelerator designs also place difficult requirements on accuracy and stability. To meet these requirements a cavity BPM operating at 11.424 GHz was designed. The BPM consists of two cavities: an xy-cavity tuned to the dipole mode and a phase cavity tuned to the monopole mode. The xy-cavity uses a novel-coupling scheme that (in principal) has zero coupling to the monopole mode. This report will present the mechanical design, simulations, and test results of a prototype BPM. In addition BPM designs with even higher precision will be discussed

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“…So far, a variety of BPMs were developed in accordance with the requirements and the restrictions dictated by various laboratories all over the world [2][3][4][5][6][7][8]. The position resolution is defined as the smallest spatial deviation of the bunch from the symmetry axis that the BPM is able to detect.…”

Section: Introductionmentioning

confidence: 99%

Array of Metallic Posts: Possible Application for Beam Position Monitoring

Banna¹,

Ludwig²,

Schächter³

2006

AIP Conference Proceedings

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It is proposed to utilize the diffraction radiation emitted by an electron traversing an array of metallic posts for deducing the electron's displacement from the symmetry axis of the structure. In other words, it is proposed to use such an array as a beam position monitor (BPM). The structure consists of a set of N N u metallic vertical posts bounded from above and below by two horizontal metallic plates. The beam position offset from the symmetry axis is determined by measuring the backward radiation emitted by the beam as it traverses the array. The position resolution of the suggested BPM is dominated by the noise level of the detectors used for measuring the radiation, whereas the time resolution is dominated by their operation frequencies.

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Experimental results from a microwave cavity beam position monitor

Cited by 13 publications

References 2 publications

Future Developments in Electron Linac Diagnostics

Future Developments in Electron Linac Diagnostics

An X-Band Cavity for a High Precision Beam Position Monitor

Array of Metallic Posts: Possible Application for Beam Position Monitoring

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