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Evidence Guide: MEM24009B - Perform basic radiographic testing

Student: __________________________________________________

Signature: _________________________________________________

Tips for gathering evidence to demonstrate your skills

The important thing to remember when gathering evidence is that the more evidence the better - that is, the more evidence you gather to demonstrate your skills, the more confident an assessor can be that you have learned the skills not just at one point in time, but are continuing to apply and develop those skills (as opposed to just learning for the test!). Furthermore, one piece of evidence that you collect will not usualy demonstrate all the required criteria for a unit of competency, whereas multiple overlapping pieces of evidence will usually do the trick!

From the Wiki University

 

MEM24009B - Perform basic radiographic testing

What evidence can you provide to prove your understanding of each of the following citeria?

Prepare inspection areas ready for basic radiographic testing

  1. Radiographic specimens are cleaned and prepared for testing using appropriate procedures and materials.
  2. Preparation processes are carried out in accordance with the relevant procedures and OH&S requirements.
  3. Inspection areas are visually assessed and obvious discontinuities are identified.
Radiographic specimens are cleaned and prepared for testing using appropriate procedures and materials.

Completed
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Preparation processes are carried out in accordance with the relevant procedures and OH&S requirements.

Completed
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Inspection areas are visually assessed and obvious discontinuities are identified.

Completed
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Set up radiographic test equipment

  1. Nominated test is identified from standard operating procedures.
  2. Radiation testing and processing equipment is set up in accordance with standard operating procedures.
Nominated test is identified from standard operating procedures.

Completed
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Radiation testing and processing equipment is set up in accordance with standard operating procedures.

Completed
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Carry out basic radiographic tests

  1. Basic properties of X-rays and gamma rays are identified.
  2. Safety practices and controls for minimising radiation exposure are applied.
  3. Radiographic testing and safety equipment is operated in accordance with relevant work instructions and OH&S requirements.
  4. Films are processed to achieve optimum results.
Basic properties of X-rays and gamma rays are identified.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Safety practices and controls for minimising radiation exposure are applied.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Radiographic testing and safety equipment is operated in accordance with relevant work instructions and OH&S requirements.

Completed
Date:

Teacher:		 Evidence:

 

 

 

 

 

 

 

Films are processed to achieve optimum results.

Completed
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Teacher:		 Evidence:

 

 

 

 

 

 

 

Assessed

Teacher: ___________________________________ Date: _________

Signature: ________________________________________________

Comments:

 

 

 

 

 

 

 

 

Instructions to Assessors

Evidence Guide

The evidence guide provides advice on assessment and must be read in conjunction with the performance criteria, required skills and knowledge, range statement and the Assessment Guidelines for the Training Package.

Overview of assessment

A person who demonstrates competency in this unit must be able to perform basic radiographic testing. Competency in this unit cannot be claimed until all prerequisites have been satisfied.

Critical aspects for assessment and evidence required to demonstrate competency in this unit

Assessors must be satisfied that the candidate can competently and consistently perform all elements of the unit as specified by the criteria, including required knowledge, and be capable of applying the competency in new and different situations and contexts.

Context of and specific resources for assessment

This unit may be assessed on the job, off the job or a combination of both on and off the job. Where assessment occurs off the job, that is the candidate is not in productive work, then an appropriate simulation must be used where the range of conditions reflects realistic workplace situations. The competencies covered by this unit would be demonstrated by an individual working alone or as part of a team. The assessment environment should not disadvantage the candidate.

This unit could be assessed in conjunction with any other units addressing the safety, quality, communication, materials handling, recording and reporting associated with performing basic radiographic testing procedures in a range of industrial applications, or other units requiring the exercise of the skills and knowledge covered by this unit.

Method of assessment

Assessors should gather a range of evidence that is valid, sufficient, current and authentic. Evidence can be gathered through a variety of ways including direct observation, supervisor's reports, project work, samples and questioning. Questioning techniques should not require language, literacy and numeracy skills beyond those required in this unit of competency. The candidate must have access to all tools, equipment, materials and documentation required. The candidate must be permitted to refer to any relevant workplace procedures, product and manufacturing specifications, codes, standards, manuals and reference materials.

Guidance information for assessment

Required Skills and Knowledge

Required skills

Look for evidence that confirms skills in:

interpreting and following procedures

identifying inspection areas

identifying discontinuities and defects

selecting appropriate testing techniques, equipment and procedures

calculating and producing optimum quality radiographs

effectively designing exposure and storage areas

calculating shielding thicknesses

reading, interpreting and applying relative testing standards

reading, interpreting and applying relative conformance standards

documenting and reporting

assessing risk

Required knowledge

Look for evidence that confirms knowledge of:

cleaning and preparation processes for a range of test surfaces

cleaning and preparation processes for a range of test surfaces

assessment procedures and techniques

types of discontinuities and their consequences/effect on the material

procedure for carrying out each radiographic test

principal types of X-ray generators and radioisotopes and their effect on radiographic sensitivity

tools, equipment, techniques and system verification checks

relevant standards, regulations and codes

hazards associated with radiographic testing

procedures for specialised radiographic applications

principles of image formation, film and chemical properties and processing techniques

various types of films and screens, their properties and effects on image quality

maintenance and storage procedures for test equipment

common faults and damage

safety features of radioisotope cameras and X-ray equipment

production of X-rays and gamma rays

absorption of ionizing radiation by matter and the biological effects on living

X-ray equipment

gamma ray sources

comparison of X-ray and gamma ray sources on basis of energy and intensity

shielding thickness

exposure calculations

reciprocity law

preparation and use of exposure charts, radiographic equivalence charts

exposure techniques

equipment types

recording and reporting

safety aspects

types of materials

industrial applications

set-up procedures

methods/procedures for reporting test results

implications of test results for the particular material/application

any applicable industry standards, national/Australian standards, NOHSC guides, State/Territory regulatory codes of practice/standards

use and application of personal protective equipment

safe work practices and procedures

relevant hazards and control measures related to the competency

Range Statement

The range statement relates to the unit of competency as a whole. It allows for different work environments and situations that may affect performance. Bold italicised wording, if used in the performance criteria, is detailed below. Essential operating conditions that may be present with training and assessment (depending on the work situation, needs of the candidate, accessibility of the item, and local industry and regional contexts) may also be included.

Preparation processes

Surface cleaning and drying

Obvious discontinuities

Observed changes in material homogeneity