ICMST-Tohoku 2018
Oct. 23 - 26, 2018
Sendai, Japan
ICMST-Shenzhen 2016
Nov 1 - 4, 2016
Shenzhen, China
ICMST-Kobe 2014
Nov 2(Sun) - 5(Wed), 2014
Kobe, Japan
Nuclear Regulation Authority Outline of the New Safety Standards for Light Water Reactors for Electric Power Generation
For Public Comment
Outline of New Safety Standard (Design Basis)
For Public Comment
New Safety Standards (SA) Outline (Draft)
For Public Comment
Outline of New Safety Standard(Earthquake and Tsunami)(DRAFT)

Vol.10 No.2(Aug)
Vol.10 No.1(May)
Vol.9 No.4(Feb)
Vol.9 No.3(Nov)

< Other Issues


Occasional Topics
OTjapan Measures for Tsunami Striking Nuclear Power Station in Japan
Special Article: The Great Tohoku Earthquake (1)
OTjapan The Tragedy of “To Be” Principle in the Japanese Nuclear Industry
EJAMOT_CN3_Figure1_The_outside_view_of_CEFR OTChinaPlanning and Consideration on SFR R&D Activities in China
< All Occasional Topics

Featured Articles
EJAM7-3NT72 A New Mechanical Condition-based Maintenance Technology Using Instrumented Indentation Technique
EJAM7-3NT73 Survey robots for Fukushima Daiichi Nuclear Power Plant

(in English)


Vol.9 No.2previous AASP17(125-126-127-128-129-130-131-132-133-134-135-136-137-138-139-140-141-142) NT85

Academic Articles
Regular Paper Vol.9 No.2 (2017) p.33 - p.37

Training for a wider application of atom probe tomography in reactor ageing management

Dongyue CHEN 1,*, Kenta MURAKAMI2, Zhengcao LI3, *, Naoto SEKIMURA1

1 The University of Tokyo, Dept. of Nuclear Engineering and Management, Japan
2 The University of Tokyo, Nuclear Professional School, School of Engineering, Japan
3 Tsinghua University, School of Materials Science and Engineering, China

With the higher safety requirements and the rising public concern of reactor safety, ageing management of nuclear power plants are facing new challenges in recent years. Multiscale modeling is the tool for ageing prediction during and beyond reactor design lifetime. It is important to update the latest predictions to existing licensed reactors continuously, however, experimental data at microscopic scale is lacking for the validation and calibration of modeling results. Atom probe tomography (APT) is a new and powerful analyzing tool with near-atomic resolution. It is good at studying issues like second-phase precipitation and grain boundary cracking, and its 3D atom map is highly suitable for the comparison with modeling. APT is promising for future reactor ageing management and maintainology, but only a small fraction of researchers can utilize the new technique currently. In this work, training for potential APT users is proposed and designed, so that more researchers could benefit from APT technique in the future. The advantages and the basic mechanisms of APT are introduced. The possible errors that are most important to APT users and modeling researchers are explained. A practice section is also designed, which enables the participants to experience the visualization of atom maps and the tuning of precipitate definition. The concept, structure and experience of this training could be a good starting point for the design and organization of better APT training in the future.
Ageing management, atom probe tomography, training
Full Paper: PDF
Article Information
Article history:
Received 12 October 2016
Accepted 29 May 2017