Effects of pre-irradiation annealing at high temperature on optical absorption and electron paramagnetic resonance of natural pumpellyite mineral - Javier-Ccallata, Henry; Sartorelli, Maria L.; Tomaz Filho, Luiz; Watanabe, Shigueo (NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2013)