Inservice Inspection of Extended Dry Storage of Spent Nuclear Fuel, Part II: NDE/Sensor Technology Development and Codification

2021 ◽  
Author(s):  
Ryan M. Meyer ◽  
Jeremy Renshaw ◽  
Kenn Hunter ◽  
Mike Orihuela ◽  
Jim Stadler ◽  
...  
Keyword(s):  
Nuclear Fuel ◽  
Spent Nuclear Fuel ◽  
Technology Development ◽  
Storage System ◽  
Sensor Technology ◽  
Nondestructive Examination ◽  
Dry Storage ◽  
Safety Function ◽  
Majority Population ◽  
The Usa

Abstract This paper describes development and demonstration of nondestructive examination (NDE) technologies to support periodic examinations of interim dry storage system (DSS) canisters for spent nuclear fuel in the USA to verify continued safe operation and that the canister confinement is intact and performing its intended safety function. Specifically, this work relates to NDE technology development for “canister” based DSS systems, which form the majority population of DSSs in the USA for interim storage of spent nuclear fuel. Consideration of potential degradation of the welded stainless-steel canister in these systems is required for continued usage in the period of extended operation (PEO) beyond the initial license or certified term. Physical access to the canister surface is constrained due to narrow annulus spaces between the canister and the overpack, tortuous entry pathways, and high temperatures and radiation doses that can be damaging to materials and electronics related to inspections. Several activities to demonstrate NDE technologies for the inspections of different DSS systems are summarized.

Research on Carboform Nondestructive Examination Based on Infrared Thermal Wave

2011 ◽  
Vol 271-273 ◽  
pp. 177-180
Author(s):  
Hai Feng Chang
Keyword(s):  
Edge Detection ◽  
Contrast Enhancement ◽  
Thermal Performance ◽  
Thermal Wave ◽  
Thermal Imaging ◽  
Median Filter ◽  
Performance Difference ◽  
Infrared Thermal Imaging ◽  
Nondestructive Examination ◽  
Infrared Thermal Images

Due to special characteristics of Carboform material, there are many difficulties to exam such material with traditional methods. Infrared thermal imaging technology shoots carboform to obtain infrared thermal images. With variation of time and temperature, the change principle of thermal performance difference of carboform in different temperature can be compared and analyzed. Effective data and reasonable fitting time can be extracted to fit for data with power exponential function. Then, imaging functions were utilized to perform gray change, median filter, fuzzy contrast enhancement, edge detection so as to output images on fitted data. Defects of specimen can be found. Example of some carboform sample based on infrared thermal wave verified feasibility of the proposed method.

scholarly journals Development of ASTM Standards in Support of Advanced Ceramics — Continuing Efforts

1998 ◽  
Author(s):  
Charles R. Brinkman
Keyword(s):  
International Standards ◽  
Material Behavior ◽  
Composite Ceramics ◽  
Advanced Ceramics ◽  
Component Reliability ◽  
Nondestructive Examination ◽  
Analysis And Design ◽  
Optimum Material ◽  
American Society ◽  
Statistical Analysis And Design

An update is presented of the activities of the American Society for Testing and Materials (ASTM) Committee C-28 on Advanced Ceramics. Since its inception in 1986, this committee, which has five standard producing subcommittees, has written and published over 32 consensus standards. These standards are concerned with mechanical testing of monolithic and composite ceramics, nondestructive examination, statistical analysis and design, powder characterization, quantitative microscopy, fractography, and terminology. These standards ensure optimum material behavior with physical and mechanical property reproducibility, component reliability, and well-defined methods of data treatment and material analysis for both monolithic and composite materials. Committee C-28 continues to sponsor technical symposia and to cooperate in the development of international standards. An update of recent and current activities as well as possible new areas of standardization work will be presented.

Sign in / Sign up

Export Citation Format

Share Document