The safe operation of X-ray foreign object detection devices should strictly focus on radiation protection, standardized equipment operation, and personnel safety, covering the entire process of pre startup inspection, operation procedures, emergency response, etc. It is necessary to avoid radiation leakage risks while ensuring detection accuracy and equipment life.
Preparation and inspection before startup
Environmental confirmation: Check the operating environment of the equipment to ensure good ventilation, no flammable or explosive materials, no accumulation of debris on the operating platform and surrounding areas, and unobstructed passages for emergency evacuation.
Equipment appearance inspection: Check whether the equipment shell and lead protection door are intact, whether there is any damage, deformation or gap; Whether the indicator lights and warning signs (such as "Beware of Ionizing Radiation") are clear and complete, ensuring that the radiation warning function is normal.
Safety interlock device testing: Testing the safety interlock of the equipment, such as whether the equipment cannot be started when the lead door is not closed, and whether the door is immediately shut down during operation to ensure reliable interlock function and prevent radiation leakage.
Parameter setting verification: Based on the material, size, and other characteristics of the detected item, verify and set appropriate parameters such as X-ray tube voltage, current, and detection speed to avoid detection failure or equipment overload caused by parameter errors.
Operation and maintenance after shutdown
Equipment shutdown: After the detection is completed, stop the equipment operation according to the normal procedure. After the conveyor belt stops, turn off the main power switch and then disconnect the main power.
Cleaning and organization: Clean up residual items on the conveyor belt, wipe the surface of the equipment and the conveyor belt with a clean cloth, and keep the equipment clean; Organize testing records, archive and save them.
Regular maintenance: According to the equipment manual requirements, professional personnel regularly inspect and calibrate key components such as X-ray tubes, detectors, and protective lead plates, replace aging protective materials, and ensure that the radiation leakage dose meets national safety standards (the annual effective dose limit for the public is 1mSv, and for professionals it is 50mSv).
Personnel protection and training requirements
Personal protection: Operators are required to wear personal radiation dosimeters and regularly monitor the accumulated radiation dose; If the radiation protection level of the equipment is low, protective equipment such as lead clothing and lead caps should be worn.
Qualifications and Training: Operators must undergo professional training, be familiar with equipment performance, radiation hazards, and protection knowledge, and pass the assessment before they can take up their posts; Annual radiation safety retraining is required to update safety operation awareness.
Emergency response measures
Emergency response to radiation leakage: If there is suspicion of radiation leakage from the equipment (such as abnormal increase in personal dosimeter readings), personnel on site should be immediately evacuated, a warning area should be designated, unrelated personnel should be prohibited from entering, and professional radiation testing institutions should be contacted for testing. The equipment should be dealt with after confirming safety.
Emergency response to equipment failure: In case of sudden loss of control, sparks, or other emergency situations, immediately press the emergency stop button, cut off the main power supply, call for equipment maintenance, and have professional personnel handle it. Non professional personnel are prohibited from repairing without authorization.
summary
The safety operation core of X-ray foreign object detection device is "radiation prevention, compliance with regulations, and heavy maintenance". By strictly carrying out startup inspections, standardizing operating procedures, performing shutdown maintenance, and emergency preparedness, radiation risks can be minimized to ensure personnel safety and stable equipment operation. At the same time, regular personnel training and equipment calibration are key to long-term safe use and must run through the entire lifecycle of the equipment.