Precautions of Electron Gun Filament

As a medical EB tungsten filament, EB tungsten filament is one of the most important parts of medical treatment. The notices of the EB tungsten filament become more important.

The medical EB tungsten filament can be divided into two types: non detachable and detachable. With the increasing time to use medical EB tungsten filament, the filament will gradually aging and the measuring rate of the machine will gradually decrease or not be able to produce light. At this time, the maintenance engineer should first check on the current number, if the number is not zero, people can appropriately adjust the EB tungsten filament current, and it can be maintained at a relatively stable state to work.

While exchanging the medical EB tungsten filament, there are the some points to notice: first of all, people should ensure that there is sufficient dry nitrogen in accelerating tube system before the exchange, so as to avoid harmful gases penetrate into the system. After removing the EB tungsten filament, the accelerating tube port should be covered by protective cover as soon as possible, put the EB tungsten filament in a clean platform.

There are several more details of precautions:

1. People should check whether the voltage nitrogen less than 14 bar or not while filling nitrogen, if the value is less than 14 bar, you need to change another cylinder. 2. Pay attention to keep a dry and clean environment when exchanging the EB tungsten filament. 3. Engineer should wear a mask, hat and gloves, to prevent the EB tungsten filament from dust and oil pollution.

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