By building groups and the consistent multiple use of construction units in our radiation devices the spare and wearing parts were reduced to a minimum, which saves substantial costs in the spare part provision with stocks. The unique radiation pistol with the parallel sucking in system and blast grain acceleration system, i.e., that blast grains is brought and accelerated without contact by the pistol body parallel into the nozzle. With wear fast the nozzle or the blast grain giver lets themselves change, thus the gun is regeneratable and applicable for many years. By the almost exemplary hand it lichkeit which as a result of it arises that both inlets, blast grains and, parallel into the rear part of the gun ends to air and leads with radiating to no handicap. This is the absulute optimization of the injector principle in the radiation technology.
