Lead door has related applications in the IMRT plan, according to reports. This means that the new type of shielding door that has a better radiation shielding effect than lead door - an environmentally friendly tungsten alloy door can also be used in this treatment plan.
More details, please visit:
http://www.tungsten-alloy.com/tungsten-alloy-radiation-shielding.html
In the IMRT plan, the arrangement of some angle shots is only due to a part of the demand in the target area, not the whole. In this case, without significantly reducing the quality of the plan, the tungsten alloy door is used to partially block the radiation field in this direction to form a local field, and only a part of the target area that needs to be irradiated from this direction is irradiated. In this way, the penetration volume of the OAR of the shooting field can be reduced, and its dose volume can be reduced. At the same time, the conformity index of the target area has not decreased significantly.
Wherein, IMRT, the short for intensity modulated radiation therapy, is an advanced high-precision radiation therapy.
