Wavelength Shifters for Applications in Liquid Argon Detectors

Abstract

Wavelength shifters and their applications for liquid argon detectors have been a subject of extensive R&D procedures over the past decade. This work reviews the most recent results in this field. We compare the optical properties and usage details together with the associated challenges for various wavelength shifting solutions. We discuss the current status and potential future R&D directions for the main classes of wavelength shifters.

Keywords

• wavelength shifters
• fluorescence
• polyethylene naphthalate
• PEN
• tetraphenyl butadiene
• TPB