Ionising radiation interacting with matter produces the most different radiation‐physical, radiation‐chemical, and radiation‐biological effects. In this contribution an accent on industrial applications of radiation sources is given. The possibilities of their application in chemical technology, namely in technology of radiation synthetic reactions, other polymeric reactions and to production of new macromolecular substances are reviewed. There are meant also radiation wastewater and sewage technologies, irradiation techniques in air cleaning processes, radiation sterilization in medicine, preparation of radiopharmaceuticals, etc. Some information on current possibilities of Slovak accelerators usage for irradiation technologies is brought.