Radiation Measurement Report Regarding Projectile Impact Site

This document is a technical report detailing radiation measurements taken at a site where a projectile was suspected to have impacted. Although no physical parts of a projectile were recovered, investigators performed radiation surveys to determine if radioactive substances had been dispersed during the impact. The survey included measurements taken along the suspected flight path through a lake, using a rowboat, and measurements taken on the eastern shore of the lake. Initial calibration tests were performed in a transport vehicle, yielding approximately 18 pulses per minute. Subsequent measurements on the shore, with the counter tube held horizontally about 1.5 meters above the ground, showed approximately 35 pulses per minute. When the tube was held vertically near specific vegetation, the count was 29 pulses per minute. During the boat survey, the tube was held 5-10 cm above the water surface. The report concludes that the results, which are referenced in a 'Table I' not included in this excerpt, show variations likely due to the short observation times. The author expresses dissatisfaction with the sensitivity of the equipment, noting that while it might detect radiation from nuclear reactions, the current readings do not indicate any increase in radioactivity at the site above background levels.