Since the CT equipment is sensitive to the temperature and humidity of the environment, please maintain the standard temperature and humidity state in the machine room according to the changes of winter seasons.
Standard temperature: in the scanning state, the temperature shall be maintained at 18℃~ 24℃(the variation range shall not exceed 5℃/ hour); It is recommended not to turn off the air conditioner at night. Before starting the machine every day to scan patients, the room temperature should be kept above 18℃~ 24℃for half an hour.
Standard humidity: in the scanning state, the relative humidity shall be maintained at 30% ~ 60% (no condensation); If the humidity does not meet the required conditions, start the machine half an hour after meeting the required conditions.
Winter environment control Description: due to the low humidity and low temperature in winter, the indoor humidity will be additionally reduced when using heating facilities. Please equip industrial humidifier to meet the requirements of stable humidity environment, and perform a common air correction after the environment is stable to ensure the image stability.
Note: when scanning patients, there is a large difference between the environment and the corresponding air correction environment attributes, which is easy to cause artifacts in the image. Therefore, the standard environmental temperature and humidity control is an important method to ensure the image quality.