Detail of MH 7011-2003

Introduction of MH 7011-2003

1 Scope This standard specifies the technical requirements, test method, packaging, marking, storage and transportation of micro-dose X-ray security inspection system for civil aviation (hereinafter referred to as security inspection system). This standard is applicable to the selection, acceptance and use of security inspection system used by safety inspection departments of civil airports and airlines. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition applies. GB 15208 Micro-dose X-ray security inspection system 3 Terms and definitions For the purpose of this standard, the following terms and definitions apply. 3.1 wire display capacity of micro-dose X-ray security inspection system (3.13) to differentiate single solid tinned copper wire Note: The wire display is generally expressed by the nominal diameter of the wire (in mm) and the wire size (AWG). 3.2 useful penetration capacity of micro-dose X-ray security inspection system (3.13) to differentiate the thinnest single solid tinned copper wire under the aluminum alloy ladder with specified thickness Note: The useful penetration is generally expressed by the nominal diameter of wire (in mm) and the wire size (AWG). 3.3 simple penetration capacity of rays to penetrate irradiated objects Note: The simple penetration is generally expressed by the thickness (in mm) of steel plate. 3.4 throughput rate quantity of the objects with a length of 1 m which inspected by micro-dose X-ray security inspection system (3.13) within one hour 3.5 organic/inorganic differentiation capacity of micro-dose X-ray security inspection system (3.13) to differentiate organic material and inorganic material 3.6 gray level differentiation capacity of micro-dose X-ray security inspection system (3.13) to differentiate the inspected objects with the same materials but different thickness Note: The gray level differentiation is generally expressed by the steps number of aluminum alloy ladder. 3.7 useful organic differentiation capacity of micro-dose X-ray security inspection system (3.13) to differentiate the different organic material with equivalent atomic number after the rays have penetrated the steel ladder 3.8 spatial resolution capacity of micro-dose X-ray security inspection system (3.13) to differentiate metal wire pairs Note: The spatial resolution is generally expressed by the nominal diameter of the wire (in mm). 3.9 absorption dose X-ray energy absorbed by a substance after receiving one irradiation Note 1: The unit of absorbed dose is gray (Gy), 1 Gy = 1 J/kg. 3.10 leakage radiation rate ionizing radiation passing through radiation shield and reaching the exterior of micro-dose X-ray security inspection system (3.13) in unit time Note: The unit of leakage radiation rate is Gy/h. 3.11 thin organic differentiation capacity of micro-dose X-ray security inspection system (3.13) to display the images of thin organic material 3.12 X-ray security inspection system security inspection system for identifying objects through the X-ray images of inspected objects which generated by measuring the intensity or spectral energy distribution of the X-ray penetrating the objects under inspection or the scattered X-ray 3.13 micro-dose X-ray security inspection system X-ray security inspection system (3.12) with absorption dose less than 5 μGy 3.14 multi-energy X-ray security inspection system micro-dose X-ray security inspection system (3.13) used for identifying and giving image of the material characteristics of object under inspection according to the rule that substances with the different atomic numbers have the different characteristics for the absorption of X-ray energy spectrum

Contents of MH 7011-2003

Foreword I 1 Scope 2 Normative references 3 Terms and definitions 4 Product classification 5 Performance of security inspection system 6 Functions of security inspection system 7 Test methods 8 Accompanied technical documents 9 Packaging, marking, storage and transportation Annex A (Normative) Test box Annex B (Normative) Scatterer for leakage radiation rate test