ABOUT US  Radosys, Ltd. is a company dedicated for development and manufacturing dosimeter systems based on  CR-39 etched-track technology. Traditionally our products were dedicated to the radon test applications by CR-39 etched-track metrology. Our radon test system was launched in 1999 and in the meantime more than 70 systems have been  installed worldwide in Europe, Japan, North-America and in Asia. A part of the users for our radon test system are private, radon test service provider companies, but the majority are  university departments conducting radon research, also governmental organizations that involved in  regional radiation protection. The company headquarter location is within a traditional industrial district of Budapest, close to the  technology/science university campus.