@article{oai:soar-ir.repo.nii.ac.jp:00012965,
author = {帯刀, 正},
journal = {信州大学工学部紀要},
month = {Dec},
note = {The measurements of the gross beta-activity were made for the hot particles (highly radioactive fallout particles) due to the third, the fifth and the seventh Chinese nuclear test explosion. The rate of beta-decay of the hot particles was investigated on the assumption that its rate was given by the equation I = Ct-a based on the Way-Wigner equation. The characteristic decay curves of betaactivity of the individual hot particles were shown as straight lines on logarithmic graph paper with the measured values of the elapsed time t after the nuclear test explosion and the corresponding beta-activity I as co-ordinates, and those of the groups of the individual hot ones due to each of the Chinese nuclear test explosions mentioned above were also shown similarly as straight lines with the values of t and the corresponding total amount of beta-activity I of the individual hot particles. The values of index a represented the slopes of the characteristic decay curves shown as straight lines were calculated by the method of least squares, and the distributions of values of a were also obtained. The decay characteristics of beta-activity of the hot particles due to the third, the fifth and the seventh Chinese nuclear test explosions were made clear respectively., Article, 信州大学工学部紀要 33: 15-26 (1972)},
pages = {15--26},
title = {核爆発実験による強放射能粒子のβ(ベータ)放射能の減衰特性について},
volume = {33},
year = {1972}
}