Method for simultaneous measurement of thermal neutron decay com

Details Method for simultaneous measurement of thermal neutron decay com Method for simultaneous measurement of thermal neutron decay com

1982-06-01

1983-10-11

Willis, Davis L.

Radiant energy

Coded record and readers; invisible radiant energy type

250262, G01V 500

Patent

active

044094817

ABSTRACT:
A method is disclosed for simultaneous determination of borehole and formation thermal neutron decay time components. The methods employ pulsed high energy neutron sources and time gated dual spaced detectors. Exponential decay curves are assumed for each of the components and iterative least squares fitting employing rapid convergence techniques are utilized.

REFERENCES:
patent: 3930153 (1975-12-01), Scott
patent: 4122338 (1978-10-01), Smith, Jr. et al.
patent: 4152590 (1979-05-01), Smith, Jr. et al.
patent: 4157469 (1979-06-01), Randall
patent: 4223218 (1980-09-01), Jacobson
patent: 4315148 (1982-02-01), Randall

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