Technical note: Darkroom lighting for luminescence dating 1 laboratory

. An optimal lighting setting for the darkroom laboratory is fundamental for the accuracy of luminescence dating 6 results. Here, we present the lighting setting implemented in the new Luminescence Dating Research Laboratory at Stony 7 Brook University, USA. In this study, we performed spectral measurements on different light sources and filters. Then, we 8 measured the optically stimulated luminescence (OSL) signal of quartz and the infrared stimulated luminescence (IRSL) at 9 50  C (IR 50 ) as well as post-IR IRSL at 290  C (pIRIR 290 ) signal of potassium (K)-rich feldspar samples exposed to various 10 light sources and durations. 11 Our