Community Research and Development Information Service - CORDIS

Abstract

PULSE-CORRELATION TECHNIQUES ARE WIDELY USED IN NON-DESTRUCTIVE ANALYSIS OF THE UNKNOWN AMOUNTS OF FISSILE MATERIAL IN "PROBES". THIS REPORT PRESENTS A MODEL OF A BRANCHING PROCESS WHICH IS FLEXIBLE ENOUGH TO COVER ALL NEUTRON MULTIPLE CORRELATION COUNTING EXPERIMENTS. EQUATIONS DESCRIBING THE STATISTICAL PROPERTIES OF PULSE TRAINS FROM DETECTOR OUTPUTS ARE GIVEN AND EXPLICIT EXPRESSION FOR THE MOMENTS OF THE PULSE DISTRIBUTION ARE DERIVED. ON INVESTIGATING THE EVENT SEQUENCES OF NEUTRON-DETECTOR OUTPUTS THE LOSS OF COUNTS AND THE MODIFICATION OF THE "PAIR-CORRELATION" FUNCTION DUE TO THE DEADTIME OF THE DETECTION SYSTEM MAY BECOME ESSENTIAL. THE REPORT PROVIDES AN APPROXIMATE THEORETICAL DESCRIPTION OF THE EFFECT OF THE DEADTIME ON COUNT RATES AND CORRELATION FUNCTIONS.

Additional information

Authors: MATTHES W JRC-ISPRA, JRC-ISPRA
Bibliographic Reference: PAPER PRESENTED: 20TH INFORMAL MEETING ON REACTOR NOISE, ISTANBUL, TURKEY, OCT. 12-14, 1988, AVAILABILITY: CEC-LUXEMBOURG, DG XIII/A2, BP 1907, MENTIONING PAPER ORA 34273 E
Availability: Can be ordered online
Record Number: 1989126215700 / Last updated on: 1989-04-01
Category: PUBLICATION
Available languages: en
Follow us on: RSS Facebook Twitter YouTube Managed by the EU Publications Office Top