The present paper is an initial report of the project for a full-text Japanese database of the testimonies of those exposed to radiation near the nuclear test site of Semipalatinsk, Kazakhstan. 139 testimonies were gathered in four villages near Semipalatinsk in 2002. We translated them into Japanese from Russian and Kazakh, and created a full-text database by using a Japanese text retrieval program, KR. In this paper, we attempt to show how the database can be used to understand tragic realities of the effects of exposure to radiation from nuclear tests. In the attempt, we try to demonstrate that radiation exposed residents near the test site are affected physically and mentally, by citing retrieved testimonies complaining illness and bad health, environmental pollution, and mental disorder, resulting finally in suicide. We also try to clarify differences between experiences in Semipalatinsk, and those in Hiroshima and Nagasaki.