QSA Global Tungsten Collimators QSA Global| 17097 QSA Global Tungsten Collimators Print QSA Global| 17097 QSA Global Tungsten Collimators Collimators contain and direct the radiation beam during exposure. A wide range of collimators has (have if ranges) been developed to meet the variety of applications and techniques used. [table id=Coll_EN /] Request for information