“…Previously N was determined to be 2.44 (± 0.11 SD) by direct comparison with activation foil measurements exposed concurrently to the WSMR FBR spectrum (5). D A was determined by comparison of total dose (neutron + gamma) response with a Co-60 gamma calibration set exposed on an Eldorado 78 Co-60 teletherapy unit at USAFSAM.…”