Photomultiplier Tube (PMT) from United States
A photomultiplier tube (PMT) converts weak light signals into electrical pulses through electron multiplication across multiple dynodes, starting from a photocathode. It is classified here as an 'other' photocathode tube for photon detection in scientific instruments.
Duty Rate — United States → Canada
0%
Import Tips
• Classify the PMT as a photocathode tube, not as a complete light detection system
• Provide specifications on the photocathode material and dynode chain
• Ensure the tube is not part of a larger instrument to avoid reclassification