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@inproceedings{dixit:ipac2021-wepab387,
author = {K.P. Dixit and G. Vinod},
title = {{Study of Failure Modes in Electron Linac-Based X-Ray Sources for Industrial Applications}},
booktitle = {Proc. IPAC'21},
pages = {3622--3625},
eid = {WEPAB387},
language = {english},
keywords = {linac, gun, electron, operation, vacuum},
venue = {Campinas, SP, Brazil},
series = {International Particle Accelerator Conference},
number = {12},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {08},
year = {2021},
issn = {2673-5490},
isbn = {978-3-95450-214-1},
doi = {10.18429/JACoW-IPAC2021-WEPAB387},
url = {https://jacow.org/ipac2021/papers/wepab387.pdf},
note = {https://doi.org/10.18429/JACoW-IPAC2021-WEPAB387},
abstract = {{Electron linac-based X-ray sources (XRS) have an increased demand in industrial applications, mainly for their advantages of compactness and ease of use. In order to achieve reliable operation, it is necessary to have rugged components in the linac system. Hence, this study focusses on achieving high reliability design; also in formulating a preventive maintenance programme to optimise the availability and prognostic methods for performance monitoring of components. This paper investigates the failure modes in the important sub-systems of a 6 MeV electron linac, including electron gun, RF power source, vacuum system, x-ray target, control system, etc. Electron guns suffer from problems related to the filament heater damage and high voltage insulation failure. In the RF source, major components (line-type pulsed modulators, magnetrons, circulator and RF window) are studied to assess their life. Fault tree analysis of the individual sub-systems and the effect of individual failures on the linac down-time are studied. A few mitigation techniques used in practical systems are also discussed here.}},
}