Electron beam dosimetry of Total Skin Electron Therapy (TSET).
Total Skin Electron Therapy (TSET) was carried out using an electron beam with a nominal energy of 6 MeV. The beam was adequately filtered and angled in order to create dual fields. The uniformity of the dose distribution to the patient was 10%. The relative dosimetry of the dual beam was performed using a silicon diode and an ionization chamber in a standard water phantom. X-Omat V films were irradiated in a cylindrical PMMA phantom in order to obtain the dose distribution for the six TSET dual fields used in the treatment. Absolute dosimetry was carried out with a calibrated ionization chamber placed in a cylindrical water phantom. The dose contribution per monitor unit of the single dual beams was determined with this method.
Piermattei
Angelo
A
Istituto di Fisica e UO di Fisica Sanitaria, Università Cattolica del S. Cuore, Rome. a.piermattei@rm.unicatt.it
Rossi
Giacinto
G
Azario
Luigi
L
Fidanzio
Andrea
A
Balducci
Mauro
M
Valentini
Vincenzo
V
D019583:Dose Fractionation, Radiation; D004583:Electrons / Q000627:therapeutic use*; D006801:Humans; D008223:Lymphoma / Q000532:radiotherapy*; D008962:Models, Theoretical; D009010:Monte Carlo Method; D010315:Particle Accelerators; D019047:Phantoms, Imaging; D011874:Radiometry / Q000379:methods; D011879:Radiotherapy Dosage; D012878:Skin Neoplasms / Q000532:radiotherapy*; D013997:Time Factors; D014916:Whole-Body Irradiation