NUCLEAR REACTOR PRESSURE VESSELS

Award Information
Agency: Department of Energy
Branch: N/A
Contract: N/A
Agency Tracking Number: 399
Amount: $49,000.00
Phase: Phase I
Program: SBIR
Awards Year: 1983
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
11735 Woodley Ave., Granada Hills, CA, 91344
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 DR. KANJI ONO
 PRESIDENT
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS STUDY IS TO DEVELOP AN INSTRUMENT TO NONDESTRUCTIVELY EVALUATE THE DEGREE OF EMBRITTLEMENT OF FERRITIC NUCLEAR REACTOR STEELS DUE TO PROLONGED EXPOSURE TO NEUTRON IRRADIATION. CURRENTLY, ONLY DESTRUCTIVE TECHNIQUES ARE AVAILABLE USING SMALL SURVEILLANCE SAMPLES EXPOSED WITHIN A REACTOR. THE PRIMARY METHOD IS MAGNETOMECHANICAL ACOUSTICEMISSION, SUPPLEMENTED BY MAGNETIC AND EDDY CURRENT TESTING METHODS. DATA ACQUISITION WILL BE COMPUTERIZED AND PROCESSED FOR MUTUAL CORRELATION. INITIALLY, THERMAL DAMAGES ARE ANALYZED FOLLOWED BY MEASUREMENTS ON IRRADIATED SAMPLES. IN THE STUDY, ACOUSTIC SIGNALS IN THE RANGE OF 30 KHZ TO 2 MHZ WILL BE EXHAUSTIVELY ANALYZED IN RELATION TO APPLIED ALTERNATING MAGNETIC FIELDS BELOW 60 HZ. SUBMICROSCOPIC DAMAGES ARE EXPECTED TO INTERACT WITH MAGNETIC DOMAINS AND AFFECT THE GENERATION OF ACOUSTIC SIGNALS.

* Information listed above is at the time of submission. *

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