TY - JOUR
T1 - Optical properties of low background PEN structural components for the Legend-200 experiment
AU - Manzanillas, L.
AU - Efremenko, Y.
AU - Febbraro, M.
AU - Fischer, F.
AU - Guitart Corominas, M.
AU - Hackett, B.
AU - Leonhardt, A.
AU - Majorovits, B.
AU - Schulz, O.
N1 - Publisher Copyright:
© 2022 The Author(s).
PY - 2022/9/1
Y1 - 2022/9/1
N2 - Polyethylene Naphthalate (PEN) plastic scintillator has been identified as potential self-vetoing structural material in low-background physics experiments. Radio-pure scintillating components have been produced from PEN using injection compression molding technology. These low-background PEN components will be used as optically active holders to mount the Germanium detectors in the Legend-200 neutrinoless double beta decay experiment. In this paper, we present the measurement of the optical properties of these PEN components. The scintillation light emission spectrum, time constant, attenuation and bulk absorption length as well as light output and light yield are reported. In addition, the surface of these PEN components has been characterized and an estimation of the surface roughness is presented. The light output of the final Legend-200 detector holders has been measured and is reported. These measurements were used to estimate the self-vetoing efficiency of these holders.
AB - Polyethylene Naphthalate (PEN) plastic scintillator has been identified as potential self-vetoing structural material in low-background physics experiments. Radio-pure scintillating components have been produced from PEN using injection compression molding technology. These low-background PEN components will be used as optically active holders to mount the Germanium detectors in the Legend-200 neutrinoless double beta decay experiment. In this paper, we present the measurement of the optical properties of these PEN components. The scintillation light emission spectrum, time constant, attenuation and bulk absorption length as well as light output and light yield are reported. In addition, the surface of these PEN components has been characterized and an estimation of the surface roughness is presented. The light output of the final Legend-200 detector holders has been measured and is reported. These measurements were used to estimate the self-vetoing efficiency of these holders.
KW - Detector modelling and simulations I (interaction of radiation with matter, interaction of photons with matter, interaction of hadrons with matter, etc)
KW - Double-beta decay detectors
KW - Scintillators and scintillating fibres and light guides
KW - Scintillators, scintillation and light emission processes (solid, gas and liquid scintillators)
UR - http://www.scopus.com/inward/record.url?scp=85138207658&partnerID=8YFLogxK
U2 - 10.1088/1748-0221/17/09/P09007
DO - 10.1088/1748-0221/17/09/P09007
M3 - Article
AN - SCOPUS:85138207658
SN - 1748-0221
VL - 17
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 9
M1 - P09007
ER -