THE VALIDATION OF A DIGITAL COINCIDENCE COUNTING SYSTEM

The validity of digital coincidence counting (DCC) is examined using a commercially available data-acquisition board (GAGE CompuScope 6012/P CI) and computer simulations. The software which forms the basis of th e DCC system is described as well as a set of programs for testing the operation of both the hardware and software components. A (CO)-C-60 s olution has been standardised using digital versions of both the conve ntional and computer discrimination methods of coincidence counting. S ummaries of the test and standardisation results are reported. (C) 199 8 The National Physical Laboratory. Published by Elsevier Science Ltd. All rights reserved.