Determination of quasidiffusive phonon propagation in BaF2 using pulse shape analysis and possible implications for particle detection

We have shown that for quasidiffusive phonon propagation in an isotropic cr ystal the diffusion coefficient D = KL8/9, where K is a material constant a nd L is the distance between the phonon source and point of detection. We h ave demonstrated this is the case for BaF2 bombarded by alpha-particles. Th is implies that pulse shape analysis may provide a mechanism to achieve pos ition sensitivity in phonon mediated detectors. (C) 1999 Elsevier Science B .V. All rights reserved.