Positronium cooling in porous silica measured via Doppler spectroscopy, Cassidy DB, Mills AP, Physical Review Letters, Vol 81, Issue 1, Art# 012715, 11/29/10
Production of a fullysSpin-polarized ensemble of positronium atoms, Cassidy DB, V. E. Meligne, Mills AP, Physical Review Letters, Vol 104, Issue 17, Art# 173401, 4/27/10
Strong drive compression of a gas-cooled positron plasma, Cassidy DB, V. E. Meligne, Mills AP, Physical Review Letters, Vol 100, Issue 96, Art# 101502, 2/15/10