Photocathode for Streak Camera

S-20 extended red photocathode tube for picosecond streak cameras, providing 10ps time resolution in laser-plasma interaction studies. Features bi-alkali cathode with 30% QE at 800nm. Classified under HTS 8540.89.00.60 as high-speed light-sensing tube.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+35.0%38.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

9013.80Lower: 14.5% vs 38.7%

If part of streak camera assembly

Complete streak cameras classify under laser/electro-optical instruments.

9023.00.00Lower: 17.5% vs 38.7%

If plasma physics research instrument

Specialized streak tubes for plasma diagnostics become instrument parts.

8543.70.93Lower: 10% vs 38.7%

If integrated with sweep electronics

Streak camera tubes with built-in deflection may classify as electrical apparatus.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Time resolution specs (<50ns excludes from 8525.81 high-speed classification

UHV compatibility certification for research vacuum systems

Laser safety classification documentation if paired with femtosecond sources

Related Products under HTS 8540.89.00.60

Photomultiplier Tube R928

The Hamamatsu R928 is a head-on type photomultiplier tube featuring a semi-cylindrical photocathode that provides high sensitivity to low light levels. It amplifies photoelectrons through a series of dynodes to produce a measurable electrical signal, making it ideal for scintillation counting and spectroscopy. Classified under HTS 8540.89.00.60 as a light-sensing tube due to its photocathode design for detecting and amplifying faint light signals.

Photocathode Tube for Night Vision

This S-25 spectral response photocathode tube converts available light into electrons via photoelectric effect, amplifying them for low-light imaging in night vision devices. It features a gallium arsenide photocathode optimized for near-infrared sensitivity. Falls under HTS 8540.89.00.60 as a light-sensing photocathode tube, distinct from complete night vision cameras.

Image Intensifier Tube Gen 3

Third-generation image intensifier tube with GaAs photocathode and microchannel plate for 64 lp/mm resolution in military night vision goggles. Amplifies ambient light photons by 50,000x through electron multiplication. HTS 8540.89.00.60 classification applies to the standalone tube as a light-sensing photocathode device.

Scintillation Photomultiplier Tube

High-quantum-efficiency photomultiplier tube paired with NaI(Tl) scintillation crystals for gamma ray spectroscopy in nuclear medicine. Features 10 dynode stages and bialkali photocathode sensitive to 300-650nm emission spectrum. Classified as light-sensing tube under 8540.89.00.60 for its vacuum tube electron multiplication technology.

Vacuum Photodiode Tube

S-4 response vacuum photodiode tube with Cs-O-Ag photocathode for UV light detection in spectrophotometers, featuring fast response time (<2ns) and high radiant sensitivity. Operates without electron multiplication for direct photocurrent generation. HTS 8540.89.00.60 covers this as a light-sensing vacuum tube with photocathode.

Channeltron Electron Multiplier Tube

Burle Channeltron C-30810 continuous channel electron multiplier tube for mass spectrometry, providing gain >10^8 with 100ps FWHM timing resolution. Features curved channel geometry for high count rates up to 10^7 cps. Classified under HTS 8540.89.00.60 as light-sensing tube technology adapted for charged particle detection.