Measurement of the LCLS-II dark current using the LDMX Trigger Scintillator Prototype
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866911441992286208 |
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| author | Berzin, Elizabeth Bryngemark, Lene Kristian Group, Robert Craig Kaminski, Joesph Nelson, Timothy O'Dwyer, Rory Pascadlo, Jessica Peets, Emrys Reese, Benjamin Tompkins, Lauren Wall, Kieran Whitbeck, Andrew |
| author_facet | Berzin, Elizabeth Bryngemark, Lene Kristian Group, Robert Craig Kaminski, Joesph Nelson, Timothy O'Dwyer, Rory Pascadlo, Jessica Peets, Emrys Reese, Benjamin Tompkins, Lauren Wall, Kieran Whitbeck, Andrew |
| contents | The Light Dark Matter eXperiment (LDMX) is a proposed fixed-target missing momentum search for sub-GeV thermal relic dark matter. LDMX aims to probe thermal dark matter targets with 1016 electrons on target. Such an approach requires a high-repetition rate, low-current beam, with an average of one electron on target per event. These requirements are well-suited to the DArk Sector Experiments at LCLS-II (DASEL) facility, which will take advantage of the unused RF buckets between LCLS-II bunches to produce a well-defined low-current beam with a 26.9 ns bunch spacing. This document describes the results of a measurement of dark current in the Sector 30 transfer line (S30XL) of the LCLS-II beam, using a prototype of the LDMX trigger scintillator (TS) subsystem. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_08090 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Measurement of the LCLS-II dark current using the LDMX Trigger Scintillator Prototype Berzin, Elizabeth Bryngemark, Lene Kristian Group, Robert Craig Kaminski, Joesph Nelson, Timothy O'Dwyer, Rory Pascadlo, Jessica Peets, Emrys Reese, Benjamin Tompkins, Lauren Wall, Kieran Whitbeck, Andrew High Energy Physics - Experiment The Light Dark Matter eXperiment (LDMX) is a proposed fixed-target missing momentum search for sub-GeV thermal relic dark matter. LDMX aims to probe thermal dark matter targets with 1016 electrons on target. Such an approach requires a high-repetition rate, low-current beam, with an average of one electron on target per event. These requirements are well-suited to the DArk Sector Experiments at LCLS-II (DASEL) facility, which will take advantage of the unused RF buckets between LCLS-II bunches to produce a well-defined low-current beam with a 26.9 ns bunch spacing. This document describes the results of a measurement of dark current in the Sector 30 transfer line (S30XL) of the LCLS-II beam, using a prototype of the LDMX trigger scintillator (TS) subsystem. |
| title | Measurement of the LCLS-II dark current using the LDMX Trigger Scintillator Prototype |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2601.08090 |