Estandarización de las restricciones de dosis locales para el POE comparando resultados de dosimetría TLD y electrónica en las unidades técnicas del PET ciclotrón y medicina nuclear en el Hospital de Especialidades Carlos Andrade Marín

Abstract

The main aim of this study was to standardize local dose restrictions for OEP by comparing TLD and electronic dosimetry results of the PET CICLOTRON and Nuclear Medicine Technical Units at the Carlos Andrade Marín Specialty Hospital. For this, a statistical analysis of the OEP dosimetric history was performed in each unit mentioned, where, the histories of the electronic dosimetry Hp (10) of each OEP were classified, verifying the calibration factor of each dosimeter used, the value of the daily and monthly sum of doses; and the TLD Hp (10) and Hp (0,07) dosimetry, checking the reading period, the dosimeter code and the dose value of each OEP. The dose values of each physical history were transcribed to Excel in order to obtain a digital working database of the electronic dosimetry Hp (10), TLD Hp (10) and TLD Hp (0,07), this contained bimonthly dose values of the OEP in each year with its respective professional status, and its unit in mSv. For the statistical analysis, the OriginLab program was used, where a descriptive statistic was performed to obtain a synthesized table for each professional estate within the average, the minimum value, the median, the maximum value, and the frequency table mode, subsequently, the bimonthly dose restrictions were obtained, and with the average of these, the specific annual dose restriction was obtained for each OEP professional status. In addition, comparisons were made between the TLD an Electronic dosimetry, and the annual dose restrictions with the dose limits recommended by international organizations with the dose limits recommended by international organizations. It is concluded that the bimonthly and annual local dose restrictions are values applicable to the practice and may help to optimize the OEP exposure, it is recommended to take advantage of the local dose restrictions to comply with the Radiation Protection and Safety requirements.