I was 16 years old when I was exposed to the atomic bomb in Nagasaki City. At the age of 16, I was exposed to the atomic bombing in Nagasaki City and suffered burns all over my back. When he was 16 years old, he was exposed to the atomic bombing in Nagasaki City. This was the upper body of a 40-year-old man with residual sequelae. In the following years, he became an atomic bomb survivor of about 40 years old, with residual burn scars on his back, arms, and even near his ribs.
With the detonation of the atomic bombs on Hiroshima and Nagasaki, the survivors were burned by the flashes of heat from nuclear fission. They were also burned by fires caused by the explosions, and were involved in mechanical damage caused by collapsed buildings and flying debris. They were subjected to the direct effects of the pressure of the intense blast, i.e., compression in a straight line condition. Significant reddening of the affected skin of the survivor appeared almost immediately and had infiltrated the skin within a few hours. The most characteristic feature of these burns, when viewed after about 50 days, was the sharp injury to the exposed skin area facing the hypocenter. Patients who walked in a direction perpendicular to the line drawn between them and the explosion and whose arms were shaking suggested that they had suffered burns only on the outside and inside of their arms closest to the hypocenter.
Flash radiation is also accompanied by radiation damage from the instantaneous release of gamma rays and neutrons. Because so many survivors were killed or injured by the multiple effects of the explosion of the atomic bombs, it was not possible to assign precise percentages of casualties to each type of injury. However, the majority of casualties resulted from burns, mechanical injuries, and other causes. It was suggested that about 7% of the fatalities were primarily due to radiation sickness. The largest single factor affecting the incidence of casualties was influenced by the distance of the survivors from the hypocenter. In a study of a randomly selected group of about 900 Hibakusha, total casualties occurred up to about 3.6 km in Hiroshima and about 4.3 km in Nagasaki. The burns were considerably more severe injuries from the outset than any other type of injury, suffering from mechanical injuries far more intense than the effects of radiation.
