Image Artifacts and Noise Issues

Image artifacts such as streaks, ring-shaped distortions, or random noise can severely compromise the accuracy of your analysis. These issues may arise due to improper detector calibration or detector aging, unstable X-ray tube voltage and current, or sample movement/vibration during imaging. To address this, it’s essential to perform regular detector calibration procedures and periodically verify the calibration status to ensure the detector is functioning properly. Additionally, use a multimeter to monitor the X-ray tube output voltage, ensuring its stability and providing a consistent radiation source for high-quality imaging. Finally, always secure the sample firmly in place during scanning to prevent mechanical vibrations from disrupting the imaging process.

Mechanical failure (abnormal rotation / lifting)

Scanning arm rotation is sluggish, and the lifting platform either fails to move or tilts—these mechanical issues often stem from poor contact caused by worn slip rings, motor malfunctions, or problems with the drive circuit, as well as insufficient bearing lubrication or foreign objects obstructing movement. To address these issues, clean the slip ring surfaces, inspect the carbon brushes for wear, and replace them if necessary to ensure proper signal transmission. Additionally, use an oscilloscope to analyze the motor drive signals and identify any circuit faults, ensuring the motor operates smoothly. Finally, regularly lubricate the bearings and promptly remove any trapped debris to keep all mechanical components running efficiently.

X-ray tube overheating or failing to start

When the device indicates that the X-ray tube is overheating or failing to expose properly, it’s likely due to a cooling system malfunction—such as a blocked water pump, insufficient coolant, a faulty high-voltage generator, or aging of the X-ray tube itself, including damaged filaments. In such cases, you’ll need to inspect the coolant circulation system, clean the pump’s filter screen, and ensure proper coolant flow for effective heat dissipation. Additionally, use a high-voltage tester to check the output voltage and identify any issues with the high-voltage generator. If the problem is confirmed to be an X-ray tube or filament failure, professional technicians should handle the replacement.

Software Crashes and Data Loss

During the scanning process, the software may become unresponsive, or the reconstructed data could become corrupted. This is often caused by incompatibility between the operating system and the software version, insufficient hard drive space, the presence of bad sectors, or incorrect parameter settings in the reconstruction algorithm. To resolve these issues, promptly update the software to the latest version to ensure compatibility with your operating system; use a hard drive diagnostic tool like CrystalDiskInfo to monitor the drive’s health and safeguard your data; and before starting the reconstruction process, be sure to back up the original projection data and carefully adjust the reconstruction parameters, such as selecting the appropriate filter type.

Failures caused by environmental factors

Frequent device crashes and declining image quality may be caused by an unstable power supply voltage—such as voltage fluctuations exceeding 10%—as well as excessively high indoor temperature and humidity levels: temperatures above 25°C and humidity levels higher than 70%. Additionally, accumulated dust can lead to poor heat dissipation. To address these issues, consider installing a voltage-stabilizing power source, like an UPS (Uninterruptible Power Supply), to maintain a steady voltage. Use a thermometer-hygrometer to monitor environmental conditions, and if necessary, turn on air conditioning or a dehumidifier to keep the indoor temperature and humidity within optimal ranges. Finally, regularly clean the inside of your equipment, paying special attention to the fan and散热片 (heat sinks) to ensure proper cooling performance.