Use of alanine for dosimetry intercomparisons among Italian radiotherapy centers.
A pilot program of postal dosimetry intercomparison among 16 Italian Radiotherapy Centers was performed using the ISS Alanine/EPR dosimetry as a transfer system. Dosimeters were irradiated at 10 Gy with high-energy photon beams, both in reference condition in a water phantom and in an anthropomorphic phantom during the simulated treatment of rectum cancer. Intercomparison design along with alanine performances analyzing the different contributions to the combined uncertainty in dose assessment are reported. Main results of the pilot intercomparison, terminated in 2002, are also presented.
De Angelis
C
C
Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy. cinzia.deangelis@iss.it
De Coste
V
V
Fattibene
P
P
Onori
S
S
Petetti
E
E
D000409:Alanine / Q000737:chemistry* / Q000528:radiation effects*; D001822:Body Burden; D004578:Electron Spin Resonance Spectroscopy / Q000295:instrumentation / Q000379:methods* / Q000592:standards; D007558:Italy; D009683:Nuclear Medicine / Q000592:standards; D010865:Pilot Projects; D011785:Quality Assurance, Health Care / Q000379:methods* / Q000592:standards; D011829:Radiation Dosage; D011834:Radiation Monitoring; D011874:Radiometry / Q000295:instrumentation / Q000379:methods* / Q000592:standards*; D011878:Radiotherapy / Q000592:standards*; D012015:Reference Standards; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity
D000409:Alanine