CONTAMINATION DISTRIBUTION MEASUREMENT APPARATUS FOR MEASURING CONTAMINATION DISTRIBUTION OF RADIOACTIVE SUBSTANCE

摘要

PROBLEM TO BE SOLVED: To provide a portable contamination distribution measurement apparatus which can measure the contamination distribution of radioactive substances by measuring the space dose rate continuously while easily moving on a non-flat land form.SOLUTION: A contamination distribution measurement apparatus comprises: a first radiation detector and second radiation detector which measure the space dose rate; a first shielding body which is arranged so as to cover the first radiation detector in order to shield the radiation incident on the first radiation detector from a direction other than a prescribed direction; and a second shielding body which is arranged so as to cover the surface opposing the prescribed direction of the second radiation detector in order to shield the radiation incident on the second radiation detector from the prescribed direction.