Direct observation of positron capture process at the positron source of the superKEKB B-factory
Abstract A direct simultaneous detection of electron ( $$e^-$$ e - ) and positron ( $$e^+$$ e + ) bunches was successfully performed using wideband beam monitors and a detection system at the $$e^+$$ e + capture section of the SuperKEKB B-factory. The time intervals between the secondary-generated $...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-22030-5 |
| _version_ | 1811223490869592064 |
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| author | Tsuyoshi Suwada |
| author_facet | Tsuyoshi Suwada |
| author_sort | Tsuyoshi Suwada |
| collection | DOAJ |
| description | Abstract A direct simultaneous detection of electron ( $$e^-$$ e - ) and positron ( $$e^+$$ e + ) bunches was successfully performed using wideband beam monitors and a detection system at the $$e^+$$ e + capture section of the SuperKEKB B-factory. The time intervals between the secondary-generated $$e^-$$ e - and $$e^+$$ e + bunches were measured to investigate their dynamical capture process. The results show that the time intervals were measured in the range of 20–280 ps on average, and the line-order switch of the $$e^-$$ e - and $$e^+$$ e + bunches and their dynamical phase-slip process in the axial direction were clearly observed as a function of the capture phase of accelerating structures. In this report, the dynamical capture and phase-slip process for the $$e^-$$ e - and $$e^+$$ e + bunches under the two-bunch acceleration scheme is described in detail. This study opens up a new window for direct observation of the $$e^-$$ e - and $$e^+$$ e + capture process at any present and future $$e^+$$ e + sources. |
| first_indexed | 2024-04-12T08:33:42Z |
| format | Article |
| id | doaj.art-1d563dc773254b619362b7b2876e482e |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-12T08:33:42Z |
| publishDate | 2022-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-1d563dc773254b619362b7b2876e482e2022-12-22T03:40:04ZengNature PortfolioScientific Reports2045-23222022-11-011211810.1038/s41598-022-22030-5Direct observation of positron capture process at the positron source of the superKEKB B-factoryTsuyoshi Suwada0Accelerator Laboratory, High Energy Accelerator Research Organization (KEK)Abstract A direct simultaneous detection of electron ( $$e^-$$ e - ) and positron ( $$e^+$$ e + ) bunches was successfully performed using wideband beam monitors and a detection system at the $$e^+$$ e + capture section of the SuperKEKB B-factory. The time intervals between the secondary-generated $$e^-$$ e - and $$e^+$$ e + bunches were measured to investigate their dynamical capture process. The results show that the time intervals were measured in the range of 20–280 ps on average, and the line-order switch of the $$e^-$$ e - and $$e^+$$ e + bunches and their dynamical phase-slip process in the axial direction were clearly observed as a function of the capture phase of accelerating structures. In this report, the dynamical capture and phase-slip process for the $$e^-$$ e - and $$e^+$$ e + bunches under the two-bunch acceleration scheme is described in detail. This study opens up a new window for direct observation of the $$e^-$$ e - and $$e^+$$ e + capture process at any present and future $$e^+$$ e + sources.https://doi.org/10.1038/s41598-022-22030-5 |
| spellingShingle | Tsuyoshi Suwada Direct observation of positron capture process at the positron source of the superKEKB B-factory Scientific Reports |
| title | Direct observation of positron capture process at the positron source of the superKEKB B-factory |
| title_full | Direct observation of positron capture process at the positron source of the superKEKB B-factory |
| title_fullStr | Direct observation of positron capture process at the positron source of the superKEKB B-factory |
| title_full_unstemmed | Direct observation of positron capture process at the positron source of the superKEKB B-factory |
| title_short | Direct observation of positron capture process at the positron source of the superKEKB B-factory |
| title_sort | direct observation of positron capture process at the positron source of the superkekb b factory |
| url | https://doi.org/10.1038/s41598-022-22030-5 |
| work_keys_str_mv | AT tsuyoshisuwada directobservationofpositroncaptureprocessatthepositronsourceofthesuperkekbbfactory |