LINAC E - room 1 lead lined door filled with lead concrete (hematite) weight 15 to. lead floor and walls weight 20 to.LINAC C - roomadditional lead for the existing lined door and frame (1,2 to. lead)LINAC A - room:1 lead lined door with 50mm lead and 220mmpolyethylene - weight approx. 7 to.PET CT center:5 lead lined doors - 25 to. lead walls and ceilingBrachy Therapy Center:1 lead lined door - 1,7 to. lead wallsLINAC B +C + D room:3 lead lined door - weight approx. 7 to.