First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory

Abstract The direct simultaneous detection of electron and positron bunch signals was successfully performed for the first time with wideband pickups and a detection system at the positron capture section of the SuperKEKB factory. The time interval between the electron and positron bunches, their bu...

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Autores principales:	Tsuyoshi Suwada, Muhammad Abdul Rehman, Fusashi Miyahara
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e22bc421528b4d218fd31ed9f559e549
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spelling	oai:doaj.org-article:e22bc421528b4d218fd31ed9f559e5492021-12-02T17:39:53ZFirst simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory10.1038/s41598-021-91707-02045-2322https://doaj.org/article/e22bc421528b4d218fd31ed9f559e5492021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91707-0https://doaj.org/toc/2045-2322Abstract The direct simultaneous detection of electron and positron bunch signals was successfully performed for the first time with wideband pickups and a detection system at the positron capture section of the SuperKEKB factory. The time interval between the electron and positron bunches, their bunch lengths, and bunch intensities depending on the phase of accelerating structures were measured to investigate their capture process and to maximally optimize the positron intensity. The results show that the time intervals were measured in the range of 135–265 ps, and the line-order switch of the electron and positron bunches in the axial direction was clearly observed as a function of the phase. The positron (electron) intensity was maximized at the optimal phase (180 $$^{\circ }$$ ∘ shifted from the optimum). These series of measurements have never been experimentally conducted so far. It is demonstrated that the positron intensity can be systematically optimized with this system as functions of beam parameters in multidimensional spaces for any positron capture section.Tsuyoshi SuwadaMuhammad Abdul RehmanFusashi MiyaharaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Tsuyoshi Suwada Muhammad Abdul Rehman Fusashi Miyahara First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory
description	Abstract The direct simultaneous detection of electron and positron bunch signals was successfully performed for the first time with wideband pickups and a detection system at the positron capture section of the SuperKEKB factory. The time interval between the electron and positron bunches, their bunch lengths, and bunch intensities depending on the phase of accelerating structures were measured to investigate their capture process and to maximally optimize the positron intensity. The results show that the time intervals were measured in the range of 135–265 ps, and the line-order switch of the electron and positron bunches in the axial direction was clearly observed as a function of the phase. The positron (electron) intensity was maximized at the optimal phase (180 $$^{\circ }$$ ∘ shifted from the optimum). These series of measurements have never been experimentally conducted so far. It is demonstrated that the positron intensity can be systematically optimized with this system as functions of beam parameters in multidimensional spaces for any positron capture section.
format	article
author	Tsuyoshi Suwada Muhammad Abdul Rehman Fusashi Miyahara
author_facet	Tsuyoshi Suwada Muhammad Abdul Rehman Fusashi Miyahara
author_sort	Tsuyoshi Suwada
title	First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory
title_short	First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory
title_full	First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory
title_fullStr	First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory
title_full_unstemmed	First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory
title_sort	first simultaneous detection of electron and positron bunches at the positron capture section of the superkekb factory
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e22bc421528b4d218fd31ed9f559e549
work_keys_str_mv	AT tsuyoshisuwada firstsimultaneousdetectionofelectronandpositronbunchesatthepositroncapturesectionofthesuperkekbfactory AT muhammadabdulrehman firstsimultaneousdetectionofelectronandpositronbunchesatthepositroncapturesectionofthesuperkekbfactory AT fusashimiyahara firstsimultaneousdetectionofelectronandpositronbunchesatthepositroncapturesectionofthesuperkekbfactory
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First simultaneous detection of electron and positron bunches at the positron capture section of the SuperKEKB factory

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