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岛津 ３０００ＴＸ全身 ＣＴ机气体探测器高负荷使用年久，气体自然耗泄露后，压力减低，扫描图像质量明显下降，表现为穿透力不足，对比度下降，“ＳＤ”值增加，探测器敏感度测试明显降低。在排除其它故障，经探测器压力测定确认压力减低后，进行了气体补充。本文详细介绍了探测器气压的测定、补充方法及注意事项。补充气体后，图像立即恢复正常。在医院自行测压，补充气体，可减少运输环节，节约人力物力，避免机械损坏及增加校准难度，缩短维修周期，对于保证ＣＴ机正常运转，提高经济效益与社会效益具有重要意义。
Shimadzu 3000TX body CT machine gas detector with high load for a long time, natural gas loss after exposure, the pressure is reduced, the quality of the scanned image is significantly reduced, manifested as lack of penetration, the contrast decreases, “SD” value increases, the detector sensitivity The test is significantly reduced. After excluding other faults, the pressure was reduced after the detector pressure measurement confirmed that gas replenishment was performed. This article describes in detail the detector pressure measurement, supplementary methods and precautions. After supplementing the gas, the image immediately returned to normal. It is important to ensure the normal operation of the CT machine and improve the economic benefits and social benefits by mandating pressure in the hospital and supplementing the gas to reduce transport links, save manpower and material resources, avoid mechanical damage and increase difficulty in calibration, and shorten the maintenance cycle.