Citation

Bradley, D.A. and Basaif, A. and Oresegun, A. and Zubair, H.T. and Zin, H.M. and Choo, K.Y. and Ibrahim, S.A. and Moradi, F. and Alkhorayef, M. and Wang, Tingyu and Wen, Jianxiang and Lewis, E. and Abdul-Rashid, H.A. (2026) Intra-pulse sub-structure sensing of accelerated electrons. Radiation Physics and Chemistry, 242. p. 113653. ISSN 0969-806X

Full text not available from this repository.

Abstract

Examination is made of the temporal pattern of 6–15 MeV electrons, specifically at the dose-rates familiar in use of conventional linacs. The observed intra-pulse sub-structure variations are a manifestation of linac power modifications (modulation occurring within the duration of a single accelerator pulse) and inter-bunch electron repulsion. The measurement system, focal in providing sub-μs temporal resolution as well as capability in covering the dose per pulse dynamic range, comprises an in-house fabricated Ge-doped fiber-sensor, a photon-counting circuit, a multi-pixel photon counter (MPPC), and a fast digital oscilloscope. Together with the observed pulse decay-time and magnitude of afterglow, the variations in intra-pulse sub-structure captured by the system can be expected to have influence upon the accuracy of dose deposition. The measurement capability of the optical fiber scintillator system is shown to be sufficient to serve present needs, largely negating a desire for more sophisticated systems offering superior temporal resolution.

Item Type:	Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7800-8360 Electronics > TK7871 Electronics--Materials
Divisions:	Faculty of Engineering (FOE)
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	10 Feb 2026 07:56
Last Modified:	10 Feb 2026 07:56
URII:	http://shdl.mmu.edu.my/id/eprint/15314

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