by Thomas P. Deuley


The purpose of this chapter is to broaden the general investigator's knowledge and understanding of conducting a radiation survey. It is highly suggested that any radiation survey be conducted by an experienced radiological monitor. It would be worthwhile to recruit such help from your local Civil Defense organization, local college or university physics department, or any other activity in your area who may have the necessary personnel and equipment.


In those cases where an initial report indicates that a UFO was on or near the ground, a radiation survey of the site should be considered. Because some forms of radioactive substances decay naturally at a very high rate (minutes to hours), a radiation survey, if possible, should be conducted as soon as the incident is reported and should be completed before anyone enters the landing site for other types of investigation.

It would be very important to find radiation of significant levels at a UFO landing site. Today, although not generally in the public eye, enough is known about radiation that should we find radiation at the site of a reported UFO, full interpretation of it could tell us of the likely source, how strong it was, how big the object was, and how long it was there. Many other details are possible depending on the type of radiation found and how long it has been since the incident occurred. Information of this breadth, when associated with other likely details, would be a milestone in UFO research.

The expectation of finding radiation at a site is low, based on experience to date. However, if the capability for doing a survey or having one done is available, it is worthwhile because of the high level of information it could furnish to researchers. Though some forms of radiation decay very rapidly, other forms decay very slowly, so a radiation survey should be considered for even the oldest cases. In an old case the expectation of finding radiation would be much lower and the information derived from it would be proportionately less, but it would still be very important.

This chapter is not intended to train anyone to be a radiation expert. It will discuss only an initial survey with a general survey radiation detector. However, it is hoped that anyone studying the material closely could do an adequate survey for the purpose of gathering initial data and determining if a more extensive survey should be conducted by experts.