Project calculation of Radiation Protection for the change of two tele-cobalt by two Clinac 600C accelerator.
Service of Radiotherapy
The Department of Radiotherapy, University Hospital
has currently two devices of tele-Cobalts brand MDS Nordion type Phoenix.
The needs of the radiotherapy department at University Medical Center consist of installing two (2) mono-energy linear accelerators.
The two (2) mono-energy linear accelerators with 4 MV,to acquire,
should allow to obtain beams of photons whose characteristics dosimetry must be identical (mirror).
New equipment (Clinac 600C) come instead of two Tele-Cobalt,they will be located in the existing bunkers (attached plan, scale 1 / 100).
Hypothesis
-The recommendations in NCRP 51 will be applied to calculate the barriers shielding rooms 1 and 2 of the two accelerators CLINAC 600C;
-The recommendations of Safety Report Series Report 47 will be applied to calculate
barriers shielding;
- Calculations are based on ordinary concrete of density 2.35 g/cm3;
- The rooms accelerators present a symmetry.Thus the calculations of symmetric barriers are identical.
Data accelerator
- The load of treatment considered is 70 patients per day with a dose of 2.5 Gy per patient;
- The factors for use and occupation adopted are those of the NCRP 51
- Radiation Leak = 0.1% of the primary beam
project
- Study the calculations for radiation protection for the change of two tele-cobalt by two Clinac 600C accelerator
please help me
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