Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter
The LUXE experiment is designed to explore the strong-field QED regime in interactions of high-energy electrons from the European XFEL in a powerful laser field. One of the crucial aims of this experiment is to measure the production of electron-positron pairs as a function of the laser field streng...
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EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_03004.pdf |
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| author | Benhammou Yan |
| author_facet | Benhammou Yan |
| author_sort | Benhammou Yan |
| collection | DOAJ |
| description | The LUXE experiment is designed to explore the strong-field QED regime in interactions of high-energy electrons from the European XFEL in a powerful laser field. One of the crucial aims of this experiment is to measure the production of electron-positron pairs as a function of the laser field strength where non-perturbative effects are expected to kick in above the Schwinger limit. For the positron energy measurements and multiplicity spectra, a tracker and an electromagnetic calorimeter are foreseen. Since the expected number of positrons varies over five orders of magnitude, and has to be measured over a widely spread low energy background, the calorimeter must be compact and finely segmented. The concept of a sandwich calorimeter made of tungsten absorber plates interspersed with thin sensor planes is developed. The sensor planes comprise a silicon pad sensor, flexible kapton printed circuit planes for bias voltage supply and signal transport to the sensor edge, all embedded in a carbon fibre support. The thickness of a sensor plane is less than 1 mm. As an alternative, gallium arsenide sensors are considered with integrated readout strips. Prototypes of both sensor planes were studied in an electron beam of 5 GeV at DESY. Results from this test beam are presented on the sensor response homogeneity, edge effects, signal sharing and embedded trace effect. |
| format | Article |
| id | doaj-art-20070d27d29347418ca7de5bd098808b |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-20070d27d29347418ca7de5bd098808b2025-01-06T11:33:47ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013150300410.1051/epjconf/202431503004epjconf_lcws2024_03004Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeterBenhammou Yan0Tel Aviv UniversityThe LUXE experiment is designed to explore the strong-field QED regime in interactions of high-energy electrons from the European XFEL in a powerful laser field. One of the crucial aims of this experiment is to measure the production of electron-positron pairs as a function of the laser field strength where non-perturbative effects are expected to kick in above the Schwinger limit. For the positron energy measurements and multiplicity spectra, a tracker and an electromagnetic calorimeter are foreseen. Since the expected number of positrons varies over five orders of magnitude, and has to be measured over a widely spread low energy background, the calorimeter must be compact and finely segmented. The concept of a sandwich calorimeter made of tungsten absorber plates interspersed with thin sensor planes is developed. The sensor planes comprise a silicon pad sensor, flexible kapton printed circuit planes for bias voltage supply and signal transport to the sensor edge, all embedded in a carbon fibre support. The thickness of a sensor plane is less than 1 mm. As an alternative, gallium arsenide sensors are considered with integrated readout strips. Prototypes of both sensor planes were studied in an electron beam of 5 GeV at DESY. Results from this test beam are presented on the sensor response homogeneity, edge effects, signal sharing and embedded trace effect.https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_03004.pdf |
| spellingShingle | Benhammou Yan Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter EPJ Web of Conferences |
| title | Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter |
| title_full | Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter |
| title_fullStr | Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter |
| title_full_unstemmed | Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter |
| title_short | Test-beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter |
| title_sort | test beam measurements of instrumented sensor planes for a highly compact and granular electromagnetic calorimeter |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/25/epjconf_lcws2024_03004.pdf |
| work_keys_str_mv | AT benhammouyan testbeammeasurementsofinstrumentedsensorplanesforahighlycompactandgranularelectromagneticcalorimeter |