Photomultiplier tube is a device that can convert light signals into electrical signals and is widely used in fields such as optical imaging and particle physics experiments. In order to ensure the safety of the use of photomultiplier tubes and extend their service life, we need to follow a series of operating procedures and maintenance methods.

Safety operating procedures

1. Handling and installation

When handling and installing photomultiplier tubes, handle them gently to avoid forceful impact or compression. To protect the surface and end face of the pipe, gloves or insulation materials should be used to wrap it during loading and unloading.
When installing and using photomultiplier tubes, it is necessary to carefully read the equipment manual and relevant materials, comply with the usage conditions and limitations specified in the equipment manual, and make reasonable layout and anti-static placement according to the usage conditions and environment.

2. During use

When using a photomultiplier tube, it is important to ensure that the input signal meets the specified voltage and operating range to avoid damaging the tube or affecting the measurement results.
When connecting lines, caution should be taken to ensure good contact and that the fiber optic discs and other equipment used for wiring have no potential short circuit hazards.
Avoid using photomultiplier tubes in environments with high temperatures, humidity, or toxic gases to prevent damage to the tubes and users.
During use, efforts should be made to avoid interference from adverse factors such as excessive light, mechanical vibration, and electrostatic impact on the photomultiplier tube.

3. When stopped from use

When a hidden danger or malfunction is found in the photomultiplier tube, it should be stopped from use in a timely manner.
After use, be sure to safely shut down and disassemble according to the instructions, completely remove signal input lines, power lines, and other equipment, and keep them properly.

Maintenance regulations

1. Cleaning and protection

The surface of the photomultiplier tube should be kept clean and dry to prevent the deposition and accumulation of substances such as water droplets and dust.
During the use of photomultiplier tubes, try to avoid touching the surface of the tube as much as possible to prevent damage and detachment of the coating on the surface of mechanical photomultiplier tubes due to vibration and corrosion.
If there is excessive surface dirt or severe scratches, special cleaning agents can be used for cleaning. Do not use cleaning agents with abrasive particles or organic solutions that are corrosive to the surface of the pipe.

2. Regular inspection and maintenance

During the use of photomultiplier tubes, important indicators such as the electrical performance and relative gain of the tubes should be regularly checked, and problems should be promptly repaired and replaced.
During use, if there are faults such as reduced reaction efficiency and signal distortion in the photomultiplier tube, timely maintenance should be carried out to ensure the accuracy and continuity of research and experiments.

3. Storage and preservation

When the photomultiplier tube is not used for a long time, it should be stored in a closed, moisture-proof, and dust-proof dry environment to prevent oxidation, corrosion, or mechanical damage inside and outside the photomultiplier tube.
When storing photomultiplier tubes, special attention should be paid to the protection and anti-static treatment of the tubes, and special insulation materials or turnover handling boxes should be used for fixation and protection.



Safe operation and maintenance of photomultiplier tubes are not only beneficial for extending the lifespan of equipment, but also provide a basic guarantee for accurate experiments and reliable results. During use, the operating procedures and maintenance methods should be strictly followed to ensure the effectiveness and safety of the photomultiplier tube.