A model for MeV C_n track damage in YIG

Abstract

An experiment by groups at Ecole Polytechnique and Institute de Physique Nucléaire (Orsay) used high resolution TEM to study the morphology of MeV C_(60) and C_(20) tracks in Y_3Fe_5O_(12) (YIG). Their data consist of measurements of latent track radii, total track lengths, and the length over which the radius remains constant. The one parameter in the model presented here is determined separately from the tracks of MeV/amu heavy ions in YIG; thus, the model uses no free parameters for fitting the C_n data. The predicted track radii, the total track lengths, and the lengths with constant radius agree with the data to within ±10%. The extension of this model to other details of track morphology will also be discussed.

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