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Development of Reconstitution Technology for Surveillance Specimens
10th International Conference on Nuclear Engineering, Volume 1, 2002The Japan Power Engineering and Inspection Corporation (JAPEIC) has been carrying out the project titled “Nuclear Power Plant Integrated Management Technology (PLIM)” consigned by Japanese Ministry of Economy, Trade and Industry (METI) since 1996FY as a 10-years project. As one of the project themes, development of reconstitution technology for reactor
Yasushi Atago +2 more
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Modification of Pre-Cracked Charpy Specimens for Surveillance Specimen Programs
Volume 6: Materials and Fabrication, Parts A and B, 2009Application of pre-cracked Charpy specimens with various depth of side-grooves is considered for fracture toughness prediction. Recommendations for prediction of temperature dependence of fracture toughness are given when using small-sized specimens with deep side-grooves.
Boris Margolin +3 more
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Surveillance Specimen Program for Lifetime Extension of RPV
18th International Conference on Nuclear Engineering: Volume 5, 2010Plant life extension (as well as Long Term Operation) to 60 or 80 years of operation also requires a reliable information about the potential irradiation embrittlement (and also thermal ageing) of reactor pressure vessel materials. Such information is usually obtained from testing specimens within the surveillance specimen program that is designed for ...
Milan Brumovsky, Milos Kytka
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Impact of Freezing on the Future Utility of Archived Surveillance Culture Specimens
Infection Control & Hospital Epidemiology, 2007The ability to recover bacteria from frozen culture specimens has important implications. The purpose of this study was to validate the utility of frozen specimens for recovery of several gram-positive and gram-negative bacterial species by culture. Results demonstrate that 98% of 250 bacterial isolates identified on initial culture were subsequently ...
Heather P, Green +7 more
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Validation of Miniature Fracture Toughness Specimens for Material Surveillance
2002Fracture toughness testing in the elastic-plastic temperature range of material behavior is described in the Master Curve standard ASTM 1921-97. The standard allows measurement of valid fracture toughness values up to KJC= 100 MPa√m with clearly smaller than standard CVN-size specimens for the irradiated material condition.
Planman, Tapio +6 more
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Russian WWER Surveillance Specimen Programs
2018This paper describes surveillance specimen programs of Water-Water Energetic Reactor (WWER) water-cooled water-moderated reactor pressure vessels and experiences of controlling the properties of first-generation WWER-440 reactor pressure vessels, which do not have surveillance specimens.
Anna Chernobaeva +2 more
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Reconstitution of Fracture Toughness Specimen for Surveillance Test
1998Fracture toughness is one of the most important material properties that influences the integrity of reactor pressure vessels (RPVs). Methods for reconstitution of fracture toughness specimen have been developed preliminarily in order to increase the number of fracture toughness data of irradiated RPV steels. The specimen adopted in this study was a 12.
M Tomimatsu, S Kawaguchi, M Iida
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Journal of Clinical Microbiology, 2023
ABSTRACT Whole-genome sequencing (WGS) of microbial pathogens recovered from patients with infectious disease facilitates high-resolution strain characterization and molecular epidemiology. However, increasing reliance on culture-independent methods to diagnose infectious diseases has resulted in few ...
Yanhui Peng +6 more
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ABSTRACT Whole-genome sequencing (WGS) of microbial pathogens recovered from patients with infectious disease facilitates high-resolution strain characterization and molecular epidemiology. However, increasing reliance on culture-independent methods to diagnose infectious diseases has resulted in few ...
Yanhui Peng +6 more
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Master Curve Testing on Reconstituted Surveillance Charpy Specimens
Volume 1A: Codes and Standards, 2018The original WWER-440 surveillance had 6 sets of specimens and each set had 12 Charpy, 12 COD (crack opening displacement) and 6 tensile specimens made from base material, weldment and HAZ (heat affected zone). The Charpy size precrack TPB (three point bend) COD specimens were located at the end of the chains, where the flux is rapidly decreasing.
Ferenc Gillemot +4 more
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Small Specimen Testing Applied at Surveillance Extension
1998The WWER-440 V-213 type RPVs are equipped with the surveillance specimens used to predict the embrittlement of the RPV material. These specimens are located near the core, resulting in accelerated irradiation. After four years of operation only one overexposed set remains in each unit.
E Czoboly, F Gillemot, F Oszwald
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