AS/NZS 4213.1:1994

1 - AS/NZS 4213.1:1994 RADIOTHERAPY SIMULATORS - FUNCTIONAL PERFORMANCE CHARACTERISTICS
4 - PREFACE
5 - CONTENTS
6 - 1 Scope and object
6 - 1.1 Scope
7 - 1.2 Object
7 - 1.3 Environmental conditions
7 - 1.3.1 General
7 - 1.3.2 Transport and storage
7 - 2 Normative references
8 - 3 Terminology and definitions
8 - 3.1 Terminology
8 - 3.2 Definitions
8 - 4 Standardized test conditions
8 - 4.1 Angle and-linear settings
9 - 4.2 Positioning of the measuring plane and RADIATION DETECTORS
9 - 4.3 FOCAL SPOT and LOADING FACTORS
9 - 5 IndicatIon of DELINEATED RADIATION FI ELDS
9 - 5.1 Numerical field-indicator
9 - 5.1.1 Information to the USER
9 - 5.1.2 Test
10 - 5.2 LIGHT FIELD-INDICATOR
11 - 5.2.1 Information to the USER
11 - 5.2.2 Test
11 - 5.3 Reproducibility
11 - 5.3.1 Information to the USER
11 - 5.3.2 Test
12 - 5.4 Geometry of the DELINEATOR
12 - 5.4.1 Information to the USER
12 - 5.4.2 Test
13 - 5.5 Illuminance of the DELINEATED LIGHT FIELD
13 - 5.5.1 Information to the USER
13 - 5.5.2 Test
13 - 6 Indication of DELINEATED RADIATION BEAM AXIS
13 - 6.1 Indication of the DELINEATED RADIATION BEAM AXIS on ENTRANCE SURFACE
13 - 6.1.1 Information to the USER
14 - 6.1.2 Test
15 - 6.2 Indication of the DELINEATED RADIATION BEAM AXIS on exit surface
15 - 6.2.1 Information to the USER
15 - 6.2.2 Test
15 - 6.3 Variationof the DELINEATED RADIATION BEAM AXIS with source axis distances (SAD)
15 - 6.3.1 Information to the USER
16 - 6.3.2 Tests
16 - 7 ISOCENTRE
16 - 7.1 Displacement of the DELINEATED RADIATI ON BEAM AXIS from the ISOCENTRE
16 - 7.1.1 Information to the USER
16 - 7.1.2 Test
19 - 7.2 Indication of the ISOCENTRE
19 - 7.2.1 Information to the USER
19 - 7.2.2 Test
19 - 7.3 Displacement of the DELINEATED RADIATION BEAM AXIS with change in FOCAL SPOT
19 - 7.3.1 Information to the USER
19 - 7.3.2 Test
19 - 8 Indication of the distance along the DELINEATED RADIATION BEAM AXIS
19 - 8.1 Device for indicating distance from ISOCENTRE
19 - 8.1.1 Information to the USER
20 - 8.1.2 Test
20 - 8.2 Device for indicating distance from RADIATION SOURCE
20 - 8.2.1 Information to the USER
20 - 8.2.2 Test
20 - 8.3 Indication of IMAGE RECEPTOR PLANE to ISOCENTRE distance
20 - 8.3.1 Information to the USER
20 - 8.3.2 Test
21 - 8.4 Numerical indication of the RADIATI ON SOURCE to ISOCENTRE distance
21 - 8.4.1 Information to the USER
21 - 8.4.2 Test
21 - 9 Zero position of rotational scales
21 - 9.1 Information to the USER
21 - 9.2 Tests
21 - 9.2.1 GANTRY rotation, Axis (1)
22 - 9.2.2 Roll of the RADIATION HEAD, Axis (2)
22 - 9.2.3 Pitch of the RADIATION HEAD, Axis (3)
22 - 9.2.4 Rot ati on of the DELINEATOR, Axis (4)
22 - 9.2.5 Test for ISOCENTRIC rotation of the PATIENT SUPPORT, Axis (5), and rotation of the table top, Axis (6)
23 - 9.2.6 Test for pitch and roll of the table top, Axes (7) and (8)
23 - 10 Congruence of opposed DELINEATED RADIATION FIELDS
23 - 10.1 Information to the USER
23 - 10.2 Test
23 - 11 Movements of the PATIENT SUPPORT
23 - 11.1 Vertical movement of the table top
23 - 11.1.1 Information to the USER
24 - 11.1.2 Test
24 - 11.2 ISOCENTRIC rotation of the PATIENT SUPPORT
24 - 11.2.1 Information to the USER
25 - 11.2.2 Test
25 - 11.3 Parallelism of PATIENT SUPPORT rotational axes
25 - 11.3.1 Information to the USER
25 - 11.3.2 Test
26 - 11.4 Rigidity of the PATIENT SUPPORT
26 - 11.4.1 Longitudinal rigidity of the PATIENT SUPPORT
27 - 11.4.2 Lateral rigidity of the PATIENT SUPPORT
29 - Annex A - Format for presentation of functional performance values

Provides guidance to manufacturers on the needs of the radiotherapist in respect to the performance of radiotherapy simulators and guidance to users wishing to check the manufacturer's declared performance characteristics, to carry out acceptance tests and to check periodically the performance throughout the life of the equipment. It is identical with, and reproduced from, IEC 1168:1993.

This InternationalStandardapplies to RADIOTHERAPY SIMULATORS which use diagnostic X-RAY EQUIPMENT to geometrically simulate a RADIOTHERAPY RADIATION BEAM so that the TREATMENT VOLUME to be irradiated during RADIOTHERAPY can be localized and the position and size of the therapeutic RADIATION FIELD can be confirmed.This standard applies to RADIOTHERAPY SIMULATORS using HIGH VOLTAGE GENERATORS operating at a voltage not exceeding 400 kV complying with IEC 601-2-7.This standard applies to RADIOTHERAPY SIMULATORS intended exclusively for RADIOTHERAPY simulation as a prelude to intended RADIOTHERAPY and not for any other purposes such as general diagnostic purposes.The requirementsin this standardare based on the assumption that the RADIOTHERAPY SIMULATOR consists of:a) a system for producing a beam of X-RADIATION not exceeding 400 kV which simulates the geometry of the RADIOTHERAPY RADIATION BEAM;b) a system for producing images of the transmitted X-RAY BEAM, either by RADIOGRAPHY or by RADIOSCOPY;c) an assembly which controls the size of the RADIATION BEAM and which delineates the intended treatment area;d) a mechanical structure that physically simulates the geometry and motions of a RADIOTHERAPY EQUIPMENT, and which supports an imaging system;e) a PATIENT SUPPORT system.This standard applies to EQUIPMENT intended for use under the supervision of a QUALIFIED PERSON.Except where otherwise stated this standard assumes that the RADIOTHERAPY SIMULATOR has an ISOCENTRIC GANTRY with no pitch or roll movement of the RADIATION HEAD.This standard specifies TYPE TESTS to be performed by the MANUFACTURER at the design and construction stages of a RADIOTHERAPY SIMULATOR but does not specify SITE TESTS to be performed after installation at the USER'S site. The accompanying technical report IEC 1170, however, does suggest that many of the test procedures are appropriate for SITE TESTS.During the course of any test procedure only those adjustments of the RADIOTHERAPY SIMULATOR are permissible that can be carried out using controls normally accessible to the OPERATOR and which are regarded as forming part of the normal operation of the RADIOTHERAPY SIMULATOR.

First published as Joint Standard AS/NZS 4213.1:1994.