In radiation therapy, QA (Quality Assurance) such as an absolute measurement of absorbed dose and dose distribution analysis is practiced. In recent years, high precision radiation therapy has become popular. These techniques are often issued by uncertainty in evaluations based on standard dosimetry so that the development of a precise dosimeter and the dose evaluation tool such as Monte Carlo simulation are required. We have been used several materials of organic films and gels or inorganic solutions. Our study aims todevelop a high accuracy dose evaluation system using those materials irradiated by various kinds of radiation (X-ray, electron, proton, and neutron).