TY - JOUR T1 - The Ionisation Produced by an $ \alpha $-Particle. Part II. Connection between Ionisation and Absorption JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 83 IS - 565 SP - 505 EP - 515 PY - 1910/04/14/ UR - http://dx.doi.org/10.1098/rspa.1910.0039 M3 - doi:10.1098/rspa.1910.0039 AU - Geiger, H. ER -