Demonstration of the light collection stability of a PEN-based wavelength shifting reflector in a tonne scale liquid argon detector
Abstract Liquid argon detectors rely on wavelength shifters for efficient detection of scintillation light. The current standard is tetraphenyl butadiene (TPB), but it is challenging to instrument on a large scale. Poly(ethylene 2,6-naphthalate) (PEN), a polyester easily manufactured as thin sheets, could simplify the coverage of large surfaces with wavelength shifters. Previous measurements have shown that commercial grades of PEN have approximately 50% light conversion efficiency relative to TPB. Encouraged by these results, we conducted a large-scale measurement using 4 m 2 combined PEN and specular reflector foils in a two-tonne liquid argon dewar to assess its stability over approximately two weeks. This test is crucial for validating PEN as a viable substitute for TPB. The setup used for the measurement of the stability of PEN as a wavelength shifter is described, together with the first results, showing no evidence of performance deterioration over a period of 12 days.
Authors
- E. Montagna
- M. Babicz (ORCID: https://orcid.org/0000-0002-1017-5440)
- G. R. Araujo (ORCID: https://orcid.org/0000-0003-4456-0774)
- A. M. Szelc (ORCID: https://orcid.org/0000-0002-4174-4407)
- A. Hamer
- A. Leonhardt (ORCID: https://orcid.org/0000-0002-7232-5512)
- L. Baudis (ORCID: https://orcid.org/0000-0003-4710-1768)
- S. Schönert (ORCID: https://orcid.org/0000-0001-5276-2881)
- H. B. Parkinson (ORCID: https://orcid.org/0009-0006-0018-6986)
- Vipin P. Gupta (ORCID: https://orcid.org/0000-0002-1891-5191)
- G. Nieradka (ORCID: https://orcid.org/0000-0002-5466-7922)
- F. Resnati
- K. Thieme (ORCID: https://orcid.org/0000-0003-3954-7612)
- P.-J. Chiu (ORCID: https://orcid.org/0000-0002-3772-0090)
- S. Choudhary (ORCID: https://orcid.org/0000-0002-8298-6779)
- M. Kuźniak (ORCID: https://orcid.org/0000-0001-9632-9115)
- T. R. Pollmann (ORCID: https://orcid.org/0000-0002-1249-6213)
- M. Kuźwa
- M. Walczak (ORCID: https://orcid.org/0000-0002-2664-3317)
- F. Pietropaolo (ORCID: https://orcid.org/0000-0003-3606-0104)
- Markus Goldbrunner
Institutions
- University of Hawaii System (US)
- University of Zurich (CH)
- National Institute for Subatomic Physics (NL)
- Istituto Nazionale di Fisica Nucleare, Sezione di Padova (IT)
- Nicolaus Copernicus Astronomical Center (PL)
- Istituto Nazionale di Fisica Nucleare, Sezione di Bologna (IT)
- Technical University of Munich (DE)
- European Organization for Nuclear Research (CH)
- University of Amsterdam (NL)
- University of Edinburgh (GB)
- Polish Academy of Sciences (PL)
Publication Details
- Journal
- Journal of Instrumentation
- Published
- 2025-05-01
- DOI
- https://doi.org/10.1088/1748-0221/20/05/c05033
- Citations
- 1
- Primary Topic
- Atmospheric Ozone and Climate
- Type
- article
- Field-Weighted Citation Impact
- 1.30
Funders
- National Science Foundation
- CERN
- Deutsche Forschungsgemeinschaft
- Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung
- Fundacja na rzecz Nauki Polskiej
- Politechnika Warszawska
- European Regional Development Fund