Background: The aim of the study was to evaluate radiation dose distribution at different body sites for mycosis fungoides patients treated by total skin electron beam irradiation (TSEBI) using a fixed platform. Materials and methods: We included patients with Mycosis Fungoides who underwent TSEBI from January 2020 to December 2022. Eighteen TLD chips were used to measure the dose distribution at 18 points on the whole-body skin for each patient. All treatment fields were delivered with a Varian VitalBeam linear accelerator (A Siemens Healthineers Company) at a collimator angle of 0°, using an electron applicator of 25×25 cm2 and an SSD of 4 meters. Results: We included 10 patients (4 women and 6 men) with similar age and body weight. TLD located above the shoulder received a lower mean dose (83.90 ± 1.98 cGy). The TLD lying under the arm received a lower dose (74.07 ± 5.77 cGy). TLDs no 4 (left inner forearm) and no. 11 (right outer forearm) received lower doses (87.52 ± 1.29 cGy and 86.63 ± 1.27 cGy, respectively). The points lying near the beam center (TLDs no. 2, 5, and 9) received higher doses (101.63 ± 1.23 cGy, 105.61 ± 1.04 cGy, and 101.80 ± 1.24 cGy, respectively) than tho
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