MEM24044 — Undertake basic radiographic tests

Elements & performance criteria

Performance evidence

• preparing the area for testing in accordance with workplace procedures and identifying discontinuities
• complying with WHS requirements during basic radiographic testing
• undertaking basic radiographic testing using appropriate techniques and equipment for material/s to be tested
• following work instructions and SOPs for performing basic radiographic tests and applying relevant standards and specifications applying safe work practices and controls for minimising radiation exposure to self and others including: ensuring security of radiation sources during storage, transport and use; using signs, barriers, shielding to minimise radiation exposure of public; reducing personal exposure time; maintaining greatest feasible distance between radiation source and equipment operator; using maximum feasible shielding between radiation source and equipment operator; using a dosimeter to monitor personal radiation exposure; maintaining statutory records of the use of radiation sources and/or instruments that emit ionising radiation
• producing optimum quality radiographs
• reporting on tests undertaken using standard workplace forms
• conducting testing with minimal environmental impact.

Knowledge evidence

• nature and sources of radiation including: principal types and sources of radiation including X-rays, Gamma rays, radioisotopes; production of X-rays and gamma rays, comparison on basis of energy and intensity, effect on radiographic sensitivity; absorption of ionizing radiation by matter, biological effects; exposure, shielding thickness
• radiation safe work practices and controls including: measures to ensure security of radiation sources during storage, transport and use; signs, barriers, and shielding used to minimise radiation exposure of public; measures to reduce personal exposure time; measures to maintain greatest feasible distance between radiation source and equipment operator; measures for maximum feasible shielding between radiation source and equipment operator; use of a dosimeter to monitor personal radiation exposure; procedures for maintaining statutory records of the use of radiation sources and/or instruments that emit ionising radiation
• principles of radiographic image formation including: exposure techniques, image formation, film and chemical properties and processing techniques; types of films and screens, their properties and effects on image quality; Reciprocity law – illumination and exposure; preparation and use of exposure charts, radiographic equivalence charts
• requirements of all applicable national/Australian standards, Safe Work Australia guidelines, State/Territory regulatory codes of practice relevant to basic radiographic testing
• applications and limitations of basic radiographic testing
• types of materials commonly tested radiographically
• radiographic tools and equipment types
• equipment features including: set-up procedures; system verification checks; common faults and damage
• safety features of radioisotope cameras and X-ray equipment
• procedures for carrying out each type of basic radiographic test
• radiographic applications used in job role
• film processing and storage
• cleaning and preparation processes for a range of test surfaces
• assessment procedures and techniques
• types of discontinuities and their consequences or implications for the material or application
• standard recording and reporting formats and procedures for reporting test results, job records, routine reports
• basic maintenance and storage procedures for testing equipment
• relevant hazards, health, safety and environment requirements relevant to job role including WHS regulations, safe work procedures and use of Personal Protective Equipment (PPE).

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

Questions about assessing MEM24044