Investigation of electron measurement results obtained from lineer accelerators for three dimension planning system at radiotherapy

In this study, the measurements of electron were taken for transfer to Precise Plan treatment planning system at Dr. Abdurrahman Yurtarslan Ankara Oncology Education and Research Hospital. For measurements, Elekta Lineer Accelarator Treatment Machine was used. The request informations for computer treatment planning system were taken and transfered to the system. % DD, diagonal profile, crossline profil at Rp+1 dept, factor of field assosiated and profil measurement at four different SSD distances were measured at 15 MeV and 22 MeV electron energies. Results taken from theoretical and computer planning were compared with data obtained by dosimetry.