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Aperture Limitation Localization Using Beam Position and Beam Loss Monitor Measurements Full article

Journal Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002
Output data Year: 2025, Volume: 1080, Article number : 170825, Pages count : 9 DOI: 10.1016/j.nima.2025.170825
Tags Aperture limitation; Beam loss; Beam loss monitors; Photomultipliers; Scintillators; Beam position monitors
Authors Maltseva Yu. 1,2 , Morozov I. 1,2,3
Affiliations
1 Budker Institute of Nuclear Physics SBRAS, Novosibirsk, 630090, Russia
2 Novosibirsk State Technical University, Novosibirsk, 630073, Russia
3 Synchrotron Radiation Facility ‘‘SKIF’’, Koltsovo, 630559, Russia

Funding (1)

1 Ministry of Science and Higher Education of the Russian Federation FWUR-2025-0004

Abstract: The efficiency of beam injection in circular accelerators can be impacted by unknown aperture limitations in the vacuum chamber. These limitations can be detected by introducing localized distortions to the closed orbit of the circulating beam observed at beam position monitors (BPMs). The localized nature of introduced closed orbit distortions enables targeted identification of loss regions. In this paper, we present a method for localizing beam losses designed primarily for circular electron accelerators using a set of sequentially placed scintillator-based beam loss monitors (BLMs). By moving these monitors along the accelerator lattice, the proposed technique achieves sub-meter spatial resolution in beam loss localization. Relative calibration of the BLMs was performed using a strontium-90 radioactive source. We report experimental results from the implementation of this method at the VEPP-4M collider.
Cite: Maltseva Y. , Morozov I.
Aperture Limitation Localization Using Beam Position and Beam Loss Monitor Measurements
Nuclear Instruments and Methods in Physics Research Section A. 2025. V.1080. 170825 :1-9. DOI: 10.1016/j.nima.2025.170825 WOS Scopus OpenAlex publication_identifier_short.sciact_skif_identifier_type
Dates:
Submitted: Apr 18, 2025
Accepted: Jul 1, 2025
Published online: Jul 15, 2025
Published print: Nov 1, 2025
Identifiers:
Web of science: WOS:001534519900001
Scopus: 2-s2.0-105010557380
OpenAlex: W4412429427
publication_identifier.sciact_skif_identifier_type: 3980
Citing: Пока нет цитирований
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