The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 14, 2023
Filed:
Jun. 25, 2019
Kth Holding Ab, Stockholm, SE;
Bo Cederwall, Lindingö, SE;
KTH HOLDING AB, Stockholm, SE;
Abstract
Radiation from special nuclear materials ('SNM') is analyzed by detecting and sampling gamma rays and fast neutrons. If the amplitude of a recorded gamma ray induced signal or neutron induced signal exceeds a predetermined threshold, signal arrival times, and characteristic pulse shape parameters and/or full integrals of the sampled signals are measured. Based on the signal arrival times, and the characteristic pulse shape parameters and/or the full integrals of the sampled signals, it is determined if a neutron induced signal is recorded within a predetermined time window after a recorded gamma ray induced signal. If so, possible points of origin of the correlated neutron and gamma rays within a field of view are reconstructed. If a rate of events with a neutron-induced signal being recorded within the predetermined time window after a recorded gamma ray signal is higher than a predetermined value above the background rate. An alarm is issued.