Cherenkov Diffraction Radiation as a tool for beam diagnostics

Lefèvre, T.; Markova, Julia; Shanks, James; Gardelle, J.; Terunuma, N.; Padilla, Y. Bordlemay; Conway, Joseph; Bleko, V. V.; Bobb, Lorraine; Fedorov, K.; Mounet, Nicolas; Apollonio, M.; Lekomtsev, Konstantin; Senes, Eugenio; Konkov, Anatoly; Billing, M.; Kieffer, R.; Gogolev, S.Yu.; Curcio, A.; Lasocha, Kacper; Alves, D.; Mazzoni, Stefano; Jones, Owain Rhodri; Потылицын, А. П.; Aryshev, Alexander; Shkitov, D. A.; Bergamaschi, M.; Schlogelhofer, Anders; Karataev, P.; Harryman, Daniel

doi:10.18429/jacow-ibic2019-thao01

Cited by 1 publication

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“…As of the different signal spectra for the proton and electron bunches, frequency discrimination is viewed as the favorable separation method and can be implemented already at the beam pickup. Therefore, a new detection method based on Cherenkov diffraction radiation [2] is under development to pickup only the high frequency content of the electron bunch spectrum, were the proton bunch spectrum is effectively vanished [3,4]. A Cherenkov diffraction radiation beam position monitor (ChDR BPM) operates similar to popular broadband electromagnetic BPM pickups, e.g.…”

Section: Introductionmentioning

confidence: 99%

Cherenkov diffraction radiation dielectric button characterization via a slab-line

Pakuza,

Wendt

2024

J. Phys.: Conf. Ser.

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Cherenkov diffraction radiation is generated when a charged particle beam passes in close proximity to a dielectric target, and is currently being studied and developed for various non-invasive beam instrumentation applications at CERN. One such instrument is a beam position monitor (BPM) composed of four cylindrical dielectric inserts. A challenge of using the conventional stretched wire technique to characterize the BPM up to high frequencies is the coupling of unwanted higher order modes (HOM) into the inserts that are dielectric-loaded circular waveguides. To minimize the generation of HOMs and excite mainly the transverse electromagnetic (TEM) mode as a model of the beam field, a set-up comprising a dielectric insert mounted on a slab line with 50 Ω characteristic impedance was tested. The results and comparison with numerical simulations in CST are be presented.

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Section: Introductionmentioning

confidence: 99%