Signals All are TTL levels. Fast Accidentals Sampling Can reduce count times by a factor x2. If neutron Multiplication may be neglected, then the detection probability, which depends on the self-shielding of the Pu in the matrix, may be eliminated. The experimental information required are the effective number of neutron singlets, and the effective number of correlated doublets, in order to solve for two unknowns. These may be obtained by the use of the conventional neutron coincidence counter or shift register.
Multiplicity counting involves the counting of the correlated triplets also.
If neutron multiplication is significant, but the isotopic composition is known, then one may determine the spontaneous fission rate, detection probability, and the neutron multiplication factor. 80386 PC104 format EISA Bus. System DOS 6.22. Standard Keyboard and VGA Display Connections. Contrast adjustment is via a rotary knob.