Fragmentation and isotope measurements on accelerated neon and argon particles of 280 MeV/nucleon

Abstract

Accelerated argon and neon particles of 280 MeV/nucleon were stopped in stacks of 250 μm Daicel cellulose nitrate visual track detector sheets. The nuclear charge and mass of 172 particles from the neon exposure and of 23 particles from the argon exposure was determined by means of the cone-length vs residual-range method using the REL criterion. A mass resolution of 0·41 amu for ²⁰Ne and 0·25 amu for ⁴⁰Ar was obtained. The influence of fragmentations within the registration range on the particle identification is discussed.