Nuclear Industrial Directory of Japan
1-7-12, Yushima, Bunkyo-ku, Tokyo 113-8681, Japan
Established in 1958, Chiyoda Technol Corporation (CTC) has been providing its services and goods related to radiation protection through 28 sales branches throughout Japan.
We launched Japan’s first personal radiation monitoring service in 1954 by film badge and switched to radiophotoluminescence dosimeters (RPLDs) in 2000.Based on our extensive experience and achievements in dosimetry in Japan, we sell and distribute various dosimetry systems abroad today.
CTC is the primary personal monitoring services company in Japan that have started with film badge services since 1956. Since 2000, we have succeeded in the replacement of film dosimeters by glass dosimeters, covering over 54% of market share in Japan including all kinds of radiation field workers in hospitals, schools, research institutes and nuclear power stations (approximately 460,000 monthly) in Japan.
Glass dosimeters called “Glass Badge” is “the State of the Art” whole body personal dosimeter. Institut de radioprotection et de sûreté nucléaire (IRSN*) has adopted RPL Glass Dosimetry System since 2008.
(*the dosimetry service of IRSN has been integrated Alternative Energies and Atomic Energy Commision(CEA) since January 2025.)
Chiyoda Technol Corporation provides calibration service of radiation measuring devices. Our Oarai Research Center was certified by the Japan Calibration Service System (JCSS) in the field of radiation in 1995. In 2003, we became the only one private company that was certified for international MRA (Mutual Recognition Agreement) to offer “secure and reliable” calibration service to our customers.
*We can provide our irradiation equipment upon your inquiry.
Our dosimetry system with small glass detector called Dose Ace is particularly suitable for checking delivered dose in the treatment planning of radiotherapy. Its new model, RPLR-1000 is going to be launched soon.
Our neutron personal monitoring service using “TechnoTrak” detector (solid state neutron detector) in Japan meets ISO 21909-1 requirements. The majority of the nuclear power plants in Japan receive our monitoring service. We offer Wide-range Neutron Pit (WNP) System including the innovated TechnoTrak2 (TT2) based on our monitoring technology. TT2 can be solely purchased with customized cutting.
For further information, please visit our website https://www.c-technol.co.jp/en/
