Is it for me?

This course is designed for NDT personnel, engineers, surveyors, inspectors, and quality engineers. The courses delivered at TWI Cambridge are also available if you are working in the aerospace industry.

What will I learn?

This course will teach you about welding processes and weld defects, properties of X- and gamma-rays, sensitometry, film selection, film processing and spurious indications. You will also learn about factors controlling contrast and definition, X- and gamma-ray equipment, ionising radiation hazards, regulations, use of screens and filters, selection of angle of aspect, image quality indicators, defect depth location, castings, and reporting.

You will receive training relevant to the examination to be taken covering practical, inspection and theoretical aspects as appropriate.

The training is in accordance with the requirements of BS EN ISO 9712 and ends with the certification examination.

What will I leave with?

By the end of the course, you should be able to:

  • Explain the basic theory of X - and gamma radiography
  • Select film type and energy levels, select and prepare techniques for a given specimen
  • State the theory of film processing and carry out practical dark-room work
  • Have a working knowledge of basic radiation safety (see note in Additional Information)
  • Plot and evaluate film characteristics (sensitometry)
  • Recognise film faults
  • Meet the syllabus requirements for CSWIP, PCN Level 2


PCN Logo

What else should I know?

The course does not cover PCN Level 2 Safety Endorsement (Radiation Protection Supervisor).

PCN Radiography certificates are only valid so long as you hold any other level of PCN radiation protection certification, or valid radiation safety certification recognised by the British Institute of NDT.

Price listed for direct access Level 2 and includes examination and levy fees. For Level 1 option, please contact Customer Services.

Please note:
All candidates attending a PCN examination (initial, retest or renewal) must provide photo ID (e.g driving licence number, passport number, PCN ID card) on the day of sitting the examination. Failure to do so will result in the candidate being turned away.

TWI Training and Examination Services requires all students wishing to attend the Radiographic Testing training (NDT20) to hold as a minimum a Basic Radiographic Safety qualification before they will be allowed onto the course.

While there are no mandatory course entry requirements although TWI Training and Examination Services require all students wishing to attend the Radiographic Testing training (NDT20) to hold, as a minimum, a Basic Radiographic Safety qualification before they will be allowed onto the course.

Training requirements:

The minimum required duration of training, which includes both theoretical and practical elements, is:

  • Level 1 - 40 hours
  • Level 2 - 80 hours (Direct Level 2 - 120 hours)

The training hours requirement is fulfilled when candidates attend one of TWI's training courses.

Certification requirements:
The minimum duration for experience prior to or following success in the qualification examination is:

  • Level 1 - 3 months
  • Level 2 - 9 months (Direct Level 2 - 12 months)

Certification will not be issued until successful completion of the examination and the required experience is achieved.

Before booking online, please ensure that you meet the entry requirements as verification will be requested when the online booking is complete.

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Non-Destructive Testing (NDT)

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