E. Roberts, Carl M. Benson, and Walter F. Fountain
This report describes a semiautomatic method of fitting transition curves to x-ray film optical density measurements of electromagnetic particle cscades. Several undred singly and multiply interacting cosmic ray events from the JACEE 8 balloon flights were anlyzed using this procedure. In addition to greatly increased speed compared to the previous manual method, the semiautomatic method offers increased accuracy through maximum likelihood fitting.
