IEC 61223-2-11:1999

Foreword
1 Scope and object
      1.1 Scope
      1.2 Object
2 Normative references
3 Terminology
      3.1 Degree of requirements
      3.2 Use of terms
4 General aspects of CONSTANCY TESTS
      4.1 General conditions affecting test procedures
      4.2 Establishment of BASELINE VALUES
      4.3 Frequency of CONSTANCY TESTS
      4.4 Identification of equipment, instrumentation
             and test conditions
      4.5 Measured functional parameters
5 Performance tests
      5.1 RADIATION output from the X-RAY SOURCE ASSEMBLY
      5.2 RADIATION input to the IMAGE RECEPTION AREA
      5.3 Geometric characteristics
      5.4 Resolution of high-contrast detail
      5.5 Variation in optical density throughout a
             RADIOGRAM
6 Statement of compliance
Figure 1 - Example of a film marker TEST DEVICE
Figure 2 - Example of a TEST DEVICE for perpendicular position
Figure 3 - Example of an alignment TEST DEVICE
Figure 4 - Examples of a high-contrast TEST DEVICE
Figure 5 - Arrangements for testing geometric conditions
Figure 6 - Geometric coincidences
Annex A (normative) Terminology - Index of defined terms
Annex B (informative) Example of a form for the standardized
                      test report
Annex C (informative) Guidance on action to be taken
Annex D (normative) PHANTOMS and TEST DEVICES

Applies to those components of X-ray equipment which - generate, influence the propagation of, and detect X-radiation; and - process, present and store radiographic information in radiological installations with diagnostic X-ray systems using radiographic films in direct radiography. This standard defines - the essential parameters which describe or affect the performance of the above components of X-ray equipment; - methods of checking that variations in measured quantities related to those parameters are within acceptable limits, in order to maintain adequate standards of imaging whilst reducing unnecessary irradiation of the patient.