
TY  - JOUR
A1  - Petersen, MCE 
T1  - Defocusing?Focusing Collision Sequences
JF  - Australian Journal of Physics
JO  - Aust. J.  Phys.
Y1  - 1967
VL  - 20
IS  - 2
SP  - 127
EP  - 130
KW  - 
UR  - https://doi.org/10.1071/PH670127 
N2  - A defocusing collision sequence with initial energy greater than the focusing energy can be converted into a focused collision sequence. This is demonstrated in the "hard sphere approximation" by taking account of the energy loss due to interaction with neighbouring lattice rows. 
ER  -

