High resistance LED light for irradiation and chemicals

Kobayashi, Yuki; Funakoshi, Tomomasa; Shinozaki, Tadahiro; Watanabe, So; Yajima, Hiroshi*; Masaoka, Hideki*; Saitani, Akihiro*

no journal, , 

The Chemical Processing Facility (CPF) has the concrete-shielded hot-cells using the mercury lamps. However, all the production, export and import of the mercury lamp have been prohibited since 2021 by the Minamata Convention on Mercury, and substitutes of the lamps are required. In this study, the LED lamps with high resistance against exposure to the irradiation and the chemicals are developed for a substitute of the mercury lamp. As the results, newly developed high resistance LED lamps can be operated continuously for more than 20 years under the environment in the respect of the irradiation resistance. Use of the LED lamps will reduce the operational cost and the amount of wastes of the facility. Practical demonstration of the lamps in the hot-cells of the CPF will be performed in near future. lamps will reduce the operational cost and the amount of wastes of the facility. Practical demonstration of the lamps in the hot-cells of the CPF will be performed in near future.