PACKING FRACTION
Definition
The <PACKING FRACTION> is a <Property> which is the the <FRACTION> of <VOUME> in a crystal structure that is occupied by constituent particles it uis defined in ISO 80000 Part 10.25 as f = Delta_r/A where Delta_r is relative mass excess and A is the nucleon number. Defined in ISO 80000-10 (2009) 10-25.1