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Technical Meeting on Advances in Post-Irradiation Examination Techniques for Power Reactor Irradiated Fuels and Innovative Fuels
Nuclear Fuel Engineering Network

Virtual Event

Dates: 21 – 27 July 2021
Ref. No: T1-TM-1905299

What's new (Organizer's announcement):

     Important milestones:

  • Due for registration (with Form A)  - 15 April 2021
  • Due for abstract submission - 15 May 2021
  • Due for presentation submission (together with Form B) - 15 June 2021 (Note: no full paper is required)

     Access to member Area:

  •  If you are a participant, you need a member access to upload or download meeting materials.
     To request the member access, click here and follow the instructions. 

  •  If you already own the member access, click member area.

  • The TM has been successfully finished as planned. The Member Area is locked for now for documentation preparation. if anyone wants to access Member Area, please contact Scientific Secretary (



The purpose of the event was to exchange information on advanced post-irradiation examinations (PIE) techniques for materials of existing and future reactor fuels, cladding, in-core structural components and coolant. 

Target Audience

The event was intended for staff members of nuclear fuel research facilities (including PIE facilities), nuclear power plants, utilities, regulatory bodies, universities and other organizations engaged in the design, operation and fabrication of existing and innovative power-reactor fuels. Participants should be actively involved in the subject of the event and have considerable experience of the relevant activities.

Structure and Topics

  • ​The TM covered the following three technical areas:

Technical area 1: PIEs of materials for fuels, cladding, in-core structural components and coolant used in existing or innovative power reactors

(1)       Pool side inspection (non-destructive), such as:

  • Visual inspection (e.g. oxide layer measurements by optical testing, infrared camera technology, profilometry),
  • Non-destructive defect or layer detection (e.g. ultrasonic testing (UT) and eddy-current testing (ET), sipping and sniffing testing).

(2)       Hot cell examination, such as:

  • Non-destructive inspection (e.g. UT, ET, gamma scanning, tomography, acoustic microscopy, diffuse reflection spectroscopy, gamma tomography),
  • Preparation of samples and subsamples for lab destructive investigation (e.g. focused ion beam or mechanical micro fragmentation),
  • Destructive inspection (e.g. x-ray absorption, X-ray powder diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), TIMS, mechanical testing, metallography, laser flash, inductively coupled plasma mass spectrometry (ICPMS), inductively coupled plasma optical emission spectrometry (ICPOES), SIMS, other analytical techniques),
  • Specific hot cell, glove box atmosphere (inert gas hot cells for molten salt reactor, uranium-nitride (UN) fuel, uranium-carbide (UC) fuel, metallic fuel),
  • Alpha and tritium tight systems (e.g. portals, penetration sealing technology).

(3)       Root cause investigations

Technical area 2: PIE support to code development and validation

  • Validation data for fuel performance codes and safety analysis codes,
  • Knowledge gap assessments to provide required data to the fuel modellers.

Technical area 3: PIE facility improvements and safe transportation of irradiated materials.

  • Upgrade the use of existing units,
  • Equipment development and capability maintenance and financial investment,
  • Collaborate with universities, other research facilities and vendors/operators/regulators,
  • Sample packaging and irradiated material disposition after PIE,
  • Transportation logistics and improvements.

Participation and Registration

Closed as the TM was finished. 


Closed as the TM was finished. 

Local Arrangements

This Technical Meeting was conducted via online meeting using WebEx. The agenda and link to access the online meeting were sent to the designated participants before the event. 


Scientific Secretary: Mr Ki Seob Sim

Division of Nuclear Fuel Cycle and Waste Technology / Department of Nuclear Energy / International Atomic Energy Agency

Tel.: +43 1 2600 21921/ Fax: +43 1 26007/ Email:

Administrative Secretary:  Ms Nisha Nath-Sirimalwatta

Division of Nuclear Fuel Cycle and Waste Technology / Department of Nuclear Energy / International Atomic Energy Agency

Tel.: +43 1 2600 22767/ Fax: +43 1 26007/ Email:

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