Spectral transmission of solar radiation by plastic and glass materials

Abstract

R&D studies for the development of a compact transmitter able to mimic the acoustic signature of a UHE neutrino interaction

Spectral Relative Attenuation of Solar Radiation through a Skylight Focused on Preventive Conservation: Museo De L’almoina in Valencia (Spain) Case Study

“…Our results are in agreement with those of Tuchinda et al [25], who found that clear glass allows up to 90% of VIS light to pass through, depending on its thickness, and with those of Li et al [26], who found relative attenuations higher than 78% in the VIS region of a quartz glass slab. Additionally, our results also agree with Serrano and Moreno [27], who found relative attenuation values of 85% in the VIS band and 80% in the NIR range for smoked glass.…”

“…Regarding the precision of the measurements, the calibration uncertainty of 10% is the same as that with which other authors have worked [ 25 , 27 , 29 , 30 ]. We carried out the same measures under real conditions with a similar instrumentation to verify their effectiveness and usefulness in preventive conservation of cultural heritage [ 32 ].…”

“…In this work, we measured the relative attenuation that does not correspond to the accepted definition of transmittance [ 31 ]. Transmittance was measured experimentally under laboratory conditions [ 25 , 27 , 29 , 30 ] by measuring the intensity of the incident and transmitted rays with directional devices.…”

“…Serrano and Moreno [ 27 ] studied the spectral transmission of solar radiation by materials and, for smoked glass, found transmittance values ranging between 56% and 68% in the UVB band and 70% in the UVA range, with higher values in the VIS (85%) and NIR (80%) ranges; for smoked glass, they obtained lower transmittances at higher temperatures, which could be due to the reduced thermal conductivity when the temperature rises [ 28 ].…”

“…In the previous works cited [ 25 , 27 ] and in others [ 29 , 30 ], laboratory experiments were performed to measure the transmittance as defined in [ 31 ]. In the present work, this same procedure was used to measure the maximum light intensity that affects a point, fundamental data for the preventive conservation of heritage as proposed by the standard [ 32 ].…”