Abstract
Recently existence of radiocesium (Cs)-containing microparticles has been reported in the field (aerosols, soils, plants, and so on) of Kanto area, which were definitely released from Fukushima nuclear plants. These microparticles are 0.5 - 2 mm in diameter and substantially silicate glass containing Fe, Zn, Cs, Rb, K, Cl and Sn as major elements. We tried synthesis of bulk glass with similar compositions using a conventional glass synthetic technique.