Ratios of Iodine-131 to Cesium-137 at the Fukushima reactors

A few days ago it was uploaded on arXiv a preprint about radiactions from Fukushima reactors, Deciphering the measured ratios of Iodine-131 to Cesium-137 at the Fukushima reactors, by T. Matsui (University of Tokyo).In the preprint, Matsui propose so...