Development and performance evaluation of a water-based liquid scintillator tracking detector with wavelength-shifting fiber readout
Fuente:
arXiv
Guardado en:
| Autores principales: | , , , , , , |
|---|---|
| Formato: | Preprint |
| Publicado: |
2025
|
| Materias: | |
| Acceso en línea: | |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| _version_ | 1866917134911668224 |
|---|---|
| author | Onda, Naoto Asano, Yuka Iida, Takashi Kikawa, Tatsuya Nakaya, Tsuyoshi Tokiyasu, Atsushi Wakabayashi, Daiki |
| author_facet | Onda, Naoto Asano, Yuka Iida, Takashi Kikawa, Tatsuya Nakaya, Tsuyoshi Tokiyasu, Atsushi Wakabayashi, Daiki |
| contents | We have developed a novel tracking detector utilizing a water-based liquid scintillator (WbLS) for the accurate characterization of neutrino interactions on a water target. In this detector, the WbLS is optically segmented into small cells by reflective separators, and the scintillation light is read out in three directions using wavelength-shifting fibers coupled to silicon photomultipliers. We developed and optimized WbLS samples for this application and measured their light yield using cosmic-ray muons. Subsequently, we constructed a prototype of the WbLS tracking detector and evaluated its performance with a positron beam. The beam test demonstrated good tracking performance, although the light yield was lower than required. The result prompted a review of the surfactant used in the WbLS and the material of the optical separators, leading to a significant improvement in light yield. In this paper, we report on a design of the WbLS tracking detector, the development of the WbLS, the results of the beam test, and subsequent improvements to the WbLS and optical separators. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2507_18893 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Development and performance evaluation of a water-based liquid scintillator tracking detector with wavelength-shifting fiber readout Onda, Naoto Asano, Yuka Iida, Takashi Kikawa, Tatsuya Nakaya, Tsuyoshi Tokiyasu, Atsushi Wakabayashi, Daiki Instrumentation and Detectors High Energy Physics - Experiment We have developed a novel tracking detector utilizing a water-based liquid scintillator (WbLS) for the accurate characterization of neutrino interactions on a water target. In this detector, the WbLS is optically segmented into small cells by reflective separators, and the scintillation light is read out in three directions using wavelength-shifting fibers coupled to silicon photomultipliers. We developed and optimized WbLS samples for this application and measured their light yield using cosmic-ray muons. Subsequently, we constructed a prototype of the WbLS tracking detector and evaluated its performance with a positron beam. The beam test demonstrated good tracking performance, although the light yield was lower than required. The result prompted a review of the surfactant used in the WbLS and the material of the optical separators, leading to a significant improvement in light yield. In this paper, we report on a design of the WbLS tracking detector, the development of the WbLS, the results of the beam test, and subsequent improvements to the WbLS and optical separators. |
| title | Development and performance evaluation of a water-based liquid scintillator tracking detector with wavelength-shifting fiber readout |
| topic | Instrumentation and Detectors High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2507.18893 |