- Parker weights revisitedMichael D Harpen
Med Phys 29:1916. 2002
- Positronium: review of symmetry, conserved quantities and decay for the radiological physicistMichael D Harpen
Med Phys 31:57-61. 2004..With this in mind we present a review of a subtle aspect of PET: the formation, symmetry properties and decay of positronium; the hydrogen like positron-electron complex which forms prior to annihilation...
- Basic nonlinear acoustics: an introduction for radiological physicistsMichael D Harpen
Department of Radiology, University of South Alabama College of Medicine, 2451 Fillingim Street, Mobile, Alabama 36617, USA
Med Phys 33:3241-7. 2006..Specifically treated is shock wave and harmonic production in lossless media. We also present a description of linear attenuation mechanisms in soft tissue and finally nonlinear propagation in soft tissue...