Plansee collimators are made of tungsten heavy alloys (Densimet(R) alloys. Due to the high density of the material, collimators perfectly shield from x-rays and gamma rays and therefore protect the healthy tissue during radiotherapy.

Densimet(R) tungsten alloys are distinguished by their particularly high density. Combined with their ability to absorb radiation as well as their outstanding mechanical properties and machinability.

Particular material properties
- high density of 17.0 to 18.8g/ccbm
- better machinability compared to pure tungsten
- high Young's modulus and very good mechanical properties
- high absorption capacity for X-rays and gamma rays
- harmless to the health and environment