Speaker
Description
Neutron multiplicity counting is a technique widely used in safeguards for the determination of mass of fissile material. The multi-channel list-mode recording of neutron data provides a large amount of data, the analysis of which provides increased possibilities due to the exact time and channel information. Here a new method for dead-time correction in neutron multiplicity counting shall be presented. The enhanced analysis possibilities are used to calculate a second pulse train containing estimations of pulse losses at specific positions. The system calibrates itself by calculating the probabilities of dead-time loss using some basic properties of the Rossi-Alpha distribution. This is done with actual measurement data, provided the amount of data is large enough to result in a good statistics. The histograms of Reals plus Accidentals (R+A) and Accidentals (A) obtained by multiplicity counting are corrected using statistical methods; Singles, Doubles and Triples are calculated later from this corrected R+A and A histograms.
| Topics | TEC3 |
|---|---|
| Which "Key Question" does your Abstract address? | TEC3.3 |
| Which alternative "Key Question" does your Abstract address? (if any) | TEC3.4 |
