Neutron response of a new albedo-neutron dosimeter

The new dosimeter consists of a plastic badge holding an aluminum card which contains three LiF chips. In the albedo-neutron portion of the badge, based on Hankins' design, the TLD-600 and one TLD-700 chips are shielded from thermal neutrons by 0.026 inch- thick cadmium. From the difference in readings of these two TLD's, the neutron dose is estimated. The neutron energy response of the new badge was measured, and compared with a calculated response. A primary advantage of the TLD albedoneutron badge is its ability to record neutrons down to the cadmium cutoff.