AS/NZS 4434.1:1996

1 - AS/NZS 4434.1:1996 MEDICAL ELECTRICAL EQUIPMENT-MEDICAL ELECTRON ACCELERATORS - FUNCTIONAL PERFORMANCE CHARACTERISTICS
4 - PREFACE
5 - CONTENTS
7 - INTRODUCTION
7 - 1 Scope and object
7 - 1.1 Scope
7 - 1.2 Object
8 - 1.3 Environmental conditions
8 - 1.3.1 General
8 - 1.3.2 Transport and storage
8 - 1.3.3 Power supply
8 - 2 Terminology
8 - 2.1 Definitions
9 - 2.2 Degree of requirements
9 - 3 General information to the USER
9 - 3.1 Available NOMINAL ENERGIES and ABSORBED DOSE RATES
9 - 3.2 Available RADIATION FIELDS
9 - 3.3 NORMAL TREATMENT DISTANCE
9 - 3.4 Available FILTERS
10 - 3.5 Availability
10 - 3.6 Influencing quantities
10 - 3.7 Maintenance
10 - 3.8 Presentation
10 - 4 Standardized test conditions
10 - 4.1 Angle settings
10 - 4.2 Properties and positioning of the PHANTOM
10 - 4.3 Positioning of measuring points
11 - 4.4 RADIATION DETECTORS
11 - 4.5 STANDARD MEASUREMENT DEPTHS
11 - 4.5.1 X-RAY BEAMS
11 - 4.5.2 ELECTRON BEAMS
11 - 4.6 RADIATION FIELDS
11 - 4.7 ADJUSTMENTS DURING TEST
11 - 5 DOSE MONITORING SYSTEM
12 - 5.1 Reproducibility
13 - 5.2 Proportionality
13 - 5.2.1 Requirement
13 - 5.2.2 Information to the USER
13 - 5.2.3 Test
13 - 5.3 Dependence on angular positions
13 - 5.3.1 Information to the USER
14 - 5.3.2 Test
15 - 5.4 Dependence on GANTRY rotation
15 - 5.4.1 Information to the USER
15 - 5.4.2 Test
15 - 5.5 Dependence on the shape of the RADIATION FIELD
15 - 5.5.1 Information to the USER
16 - 5.5.2 Test
16 - 5.6 Stability of calibration
16 - 5.6.1 Stability after high ABSORBED DOSE delivered
17 - 5.6.2 Stability throughout the day
17 - 5.6.3 Stability throughout the week
18 - 5.7 Stability in MOVING BEAM RADIOTHERAPY
18 - 5.7.1 Information to the USER
18 - 5.7.2 Test
19 - 6 Depth ABSORBED DOSE characteristics
19 - 6.1 X-RADIATION
19 - 6.1.1 Depth dose charts
20 - 6.1.2 SURFACE DOSE
20 - 6.1.3 Isodose charts
21 - 6.2 ELECTRON RADIATION
21 - 6.2.1 Depth dose charts
21 - 6.2.2 Stability of PENETRATIVE QUALITY
22 - 6.2.3 SURFACE DOSE
23 - 6.2.4 Isodose charts
23 - 7 Uniformity of RADIATION FIELDS
23 - 7.1 X-RADIATION
23 - 7.1.1 Flatness of square X-RAY FIELDS
24 - 7.1.2 Deviation of dose distribution of square X-RAY FIELDS with angular positions
25 - 7.1.3 Symmetry of square X-RAY FIELDS
26 - 7.1.4 Maximum ratio of ABSORBED DOSE
27 - 7.1.5 X-RAY FIELDS with WEDGE FILTER
28 - 7.2 ELECTRON RADIATION
28 - 7.2.1 Flatness of ELECTRON FIELDS
29 - 7.2.2 Deviation of dose distribution of ELECTRON FIELDS with angular positions
29 - 7.2.3 Symmetry of ELECTRON FIELDS
30 - 7.2.4 Maximum ratio of ABSORBED DOSE
30 - 7.3 Penumbra of RADIATION FIELDS
30 - 7.3.1 Information to the USER
30 - 7.3.2 Test
31 - 8 Indication of RADIATION FIELDS
31 - 8.1 X-RADIATION
31 - 8.1.1 Numerical field-indication
33 - 8.1.2 LIGHT FIELD-INDICATOR
34 - 8.1.3 Reproducibility
34 - 8.2 ELECTRON RADIATION
34 - 8.2.1 Numerical field-indication
35 - 8.2.2 LIGHT FIELD-INDICATOR
36 - 8.3 Geometry of the BEAM LIMITING SYSTEM for X-RADIATION
36 - 8.3.1 Information to the USER
36 - 8.3.2 Test
36 - 8.4 Illuminance and penumbra of the LIGHT FIELD
36 - 8.4.1 Information to the USER
37 - 8.4.2 Test
37 - 9 Indication of the RADIATION BEAM AXIS
37 - 9.1 Indication on entry to the PATIENT
37 - 9.1.1 Information to the USER
37 - 9.1.2 Test
39 - 9.2 Indication on exit from the PATIENT
39 - 9.2.1 Information to the USER
39 - 9.2.2 Test
39 - 10 ISOCENTRE
39 - 10.1 Displacement of the RADIATION BEAM AXIS from the ISOCENTRE
40 - 10.1.1 Information to the USER
40 - 10.1.2 Test
41 - 10.2 Indication of the ISOCENTRE
41 - 10.2.1 Information to the USER
41 - 10.2.2 Test
41 - 11 Indication of distance along the RADIATION BEAM AXIS
41 - 11.1 Indicating device
42 - 11.2 Additional indicating device for equipment with variable distance between RADIATION SOURCE and ISOCENTRE and for...
42 - 11.2.1 Information to the USER
42 - 11.2.2 Test
42 - 12 Zero position of rotational scales
43 - 12.1 Information to the USER
43 - 12.2 Tests
43 - 12.2.1 Rotation of the GANTRY, Axis 1 and pitch of the RADIATION HEAD. Axis 3
43 - 12.2.2 Roll of the RADIATION HEAD, Axis 2 (Figures 1, 2 and 3)
43 - 12.2.3 Rotation of the BEAM LIMITING SYSTEM, Axis 4 (Figures 1, 2 and 3)
43 - 12.2.4 ISOCENTRIC rotation of the table, Axis 5 (Figure 1), and rotation of the table top, Axis 6 (Figure 1)
44 - 12.2.5 Pitch and roll of the table, Axes 7 and 8 (Figure 1)
44 - 13 Congruence of opposed RADIATION FIELDS
44 - 13.1 Information to the USER
44 - 13.2 Test
44 - 14 Movements of the PATIENT table
44 - 14.1 Vertical movement of the table
44 - 14.1.1 Information to the USER
45 - 14.1.2 Test
46 - 14.2 ISOCENTRIC rotation of the table
46 - 14.2.1 Information to the USER
46 - 14.2.2 Test
46 - 14.3 Parallelism of table rotational axes
46 - 14.3.1 Information to the USER
46 - 14.3.2 Test
47 - 14.4 Rigidity of the table
47 - 14.4.1 Longitudinal rigidity of the table
47 - 14.4.2 Lateral rigidity of the table
58 - APPENDIX A - TERMINOLOGY
58 - A1. Index of terms
59 - A2. Definitions
64 - APPENDIX B - FORMAT FOR PRESENTATION OF FUNCTIONAL PERFORMANCES VALUES