“…Equations and represent the ideal behavior of luminescence as a function of environmental variables (background dose rate D R and light flux φ ) and intrinsic luminescence variables (characteristic dose D 0 and “bleachability” governed by σ ). Different luminescence signals such as OSL, IRSL, TL, and their derivative signals have varying levels of complexity in their underlying equations and are often approximated as power‐laws, sums of exponential functions, or systems of differential equations (e.g., Chen & Pagonis, ; Guralnik, Li, et al, ; Huntley, ; Jain et al, , ). The above equations and have mainly been found to be appropriate for describing the luminescence behavior of the fast OSL component of quartz (Jain et al, ; Jain, Murray, et al, ; Singarayer & Bailey, ).…”