Calcium Tungstate Scintillation Crystals from Japan
Synthetic single crystals of calcium tungstate grown for use as scintillation detectors in radiation measurement equipment. Classified under HTS 2841.80.0020 as chemically defined calcium tungstates. These crystals emit light when exposed to ionizing radiation, vital for medical imaging and particle physics.
Duty Rate — Japan → United States
5.5%
Rate breakdown
9903.05.860%Articles provided for in subdivision (b) of U.S. note 52 to this subchapter
Import Tips
• Provide crystal growth certificates and spectroscopic analysis to prove chemical purity; avoid classifying as optical elements
• Check for export controls on high-purity scintillator materials; ensure no doping that triggers semiconductor headings