Speaker
Marcin Kuźniak
(AstroCeNT, CAMK PAN)
Description
Polyethylene naphthalate (PEN) foils have been demonstrated as a wavelength shifter suitable for operation in liquid argon. At the same time wavelength shifting efficiency of technical grades of PEN, commercially available on the market, is lower than that of tetraphenyl butadiene. This talk will report on an R&D program focused on exploring the intrinsic limitations of PEN and optimizing it for highest wavelength shifting efficiency. An important component of this effort is launching a new cryogenic facility for WLS characterization, which utilizes alpha induced gaseous argon scintillation, and will soon be upgraded with a pulsed nanosecond VUV light source.
Primary author
Marcin Kuźniak
(AstroCeNT, CAMK PAN)
