The development of CT tubes: CT tubes are one of the expensive consumable components in CT machines. The correctness of their application methods will directly affect the smooth operation of CT and medical work, and also have an impact on the economic and social benefits of hospitals. The correct application and maintenance of CT tubes play an indispensable role in extending the lifespan of the tubes and improving image quality.
The factors that affect the lifespan of CT tubes are summarized as follows.
1. WARMUP scanning operation
When the CT scan is stopped several hours after it is halted, one should follow the machine's prompts to perform a preheating scan.
Preheating scanning is beneficial for extending the service life of the tube and ensuring good image quality.
2. Correctly control the exposure conditions
Based on the patient's age, weight and scanning site, accurately set the scanning conditions to reduce unnecessary tube wear and tear, and at the same time minimize the harm of excessive radiation to both the patient and the operator.
3. Control the length of the positioning (SCOUT VIEW)
Accurately position the patient and confirm the scanning area, minimizing the exposure of non-examination areas as much as possible.
4. Temperature, humidity and environmental control
During the exposure process, the tube will generate a large amount of heat. Therefore, it is necessary to equip an air conditioning system with sufficient capacity, strictly control the temperature and humidity in the scanning room according to the rules, and ensure the circulation of air in the scanning frame, which will be conducive to the effective heat dissipation of the tube.
5. Reduce the idle consumption of the rotating anode (ROTOR) and filament of the tube
When the scanning program is in the "ready" state, the exposure scanning should be stopped immediately. At this time, the rotating anode of the tube has been accelerated to a high speed of 10,000 r/min, and the filament has also been heated to the temperature required for exposure. If the exposure of the tube is not stopped in time, it will cause the tube to be wasted.
6. Good maintenance
Conducting preventive maintenance on equipment and ensuring the overall good condition of the equipment, especially the high-pressure control system of the ball tubes, is an important element to guarantee the operation of the ball tubes.
7. Good operating procedures
Formulate and strictly enforce operating procedures. For the development of medium-grade tube CT equipment, wait for at least 20 minutes or more before turning off the control power each time to allow the tube to cool down fully. Do not use high-power radio equipment such as mobile phones in the CT room to prevent interference with the equipment and cause damage.
