PROPERTIES OF WELL CRYSTALS AS GAMMA-RAY DETECTORS.
Progress rept. no. 1,
SAN FRANCISCO BAY NAVAL SHIPYARD VALLEJO CALIF CHEMICAL LAB
Pagination or Media Count:
Several parameters were investigated for gamma-ray counting with a 3 x 3-inch NaIT1 well-type scintillation detector. For normally encountered gamma-ray energies, volumes from 1 to 3 ml using a 10-ml vial can be counted with little efficiency loss for standardization a 2-ml volume is proposed. Instrument response when counting showed essentially no efficiency loss for dead times up to 20 percent for standardization a dead time below 10 percent is proposed. A set of equations based on peak areas was formulated for the unscrambling of composite spectra, and a least squares solution to these equations is provided. Resolution of either set of equations requires a computer. Author
- Nuclear Instrumentation