BS IEC 62963:2020 pdf download – Radiation protection instrumentation — X-ray computed tomography (CT) inspection systems of bottled/canned liquids
3.7 object inspection time time interval from when the object to be inspected is inserted into the system to the time when the system shows the result for the whole object. This does not include initial system warm up time Note 1 to entry: Object inspection may contain one or more single slices. 3.8 single slice inspection time time interval from when the object to be inspected is inserted into the system, to the time that the system shows the result for only one two-dimensional imaged slice of the object, a single voxel in height Note 1 to entry: This definition applies only to systems that have a single-slice mode available. This does not include initial system warm up time. 3.9 spatial resolution smallest separation distance at which two points (or line pairs) can be distinguished as separate entities 3.1 0 test sample combination of designated container and its content to be scanned 3.1 1 X-ray computed tomography (CT) technique that uses computer-processed combinations of many X-ray images taken from different angles to produce cross-sectional (tomographic) images (virtual ‘slices’) of specific areas of a scanned object 3.1 2 X-ray inspection system of bottled/canned liquids system that applies X-ray CT to bottles or cans with the intent of identifying liquids, aerosols, or gels for security purposes
4 Requirements 4.1 Structure and appearance Protection grade for the system’s shell shall be subject to rules of IEC 60529, which shall not be rated lower than the international protection marking code IP20. 4.2 Functionality 4.2.1 Threat alarm The system shall automatically provide warning by audible or visual signals when threats are detected. The signals may be disabled by configuration, if desired. 4.2.2 Image display a) The system shall designate the position(s) that a container should be placed for inspection. b) The system shall display images of inspected position(s). 4.2.3 Data storage a) Data stored in the system shall include the resulting image, device identification number (ID), operator ID and image generation time. b) Image retrieval: functionality shall be provided to retrieve result images by operator ID, image generation time and alarm result. c) Image storage capacity: The system shall save images and results of a minimum of 1 0 000 scanned objects. d) Image storage security: Images saved in the system shall be secured. Only authorized personnel should be able to access to operate on the images. e) Image export: The system shall export images into an open image format that can be easily transferred or exported.
4.3 Performance 4.3.1 Reference environmental conditions and standard test requirements Except where otherwise specified, tests shall be carried out within the standard test conditions shown in the third column of Table 1 . For tests performed outside the standard test conditions, the values of temperature, pressure and relative humidity shall be stated and the appropriate corrections, if any, made to give the response under reference conditions. All tests in 4.3 shall be performed with the same values of these reference environmental conditions. Reference conditions are given in the second column of Table 1 . The values in Table 1 are intended for tests performed in temperate climates. In other climates, the actual values for the test shall be stated. Similarly atmospheric pressure lower than 70 kPa may be permitted at higher altitudes. If the system is to be operate outside the environmental standard test conditions, testing shall be performed at these non-standard conditions.