Californium-252 Neutron Source
Californium-252 metal sources encapsulated for neutron radiography, well logging, and PGNAA analysis, featuring high neutron emission rate from spontaneous fission. HTS 2844.43.00 covers this transplutonium element (atomic no. 98) compound.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| π¨π³China | Free | +25.0% | 25% |
| π²π½Mexico | Free | β | Free |
| π¨π¦Canada | Free | β | Free |
| π©πͺGermany | Free | β | Free |
| π―π΅Japan | Free | β | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If Cf-252 production residues
Spent Cf-252 sources and production residues classify under 2844.40.
If in neutron detection equipment
Complete neutron measuring instruments classify under 9022.
If semiconductor doping material
Doped chemical elements for electronics may fall under 3818 if in wafer form.
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Import Tips & Compliance
β’ Report neutron emission rate (typically 2.3Γ10βΆ n/s-ΞΌg) and half-life (2.645 years)
β’ Include americium-252 impurity levels (<2%) in isotopic analysis
β’ Criticality safety index must not exceed 10 for most packages
Related Products under HTS 2844.43.00
Uranium-235 Enriched Isotope
Uranium-235 enriched isotope is a radioactive isotope used primarily in nuclear reactors for fission reactions and in research applications. It falls under HTS 2844.43.00 as a radioactive isotope other than those specified in subheadings 2844.10, 2844.20, or 2844.30, meeting the criteria for elements with artificially modified isotopic composition.
Plutonium-239 Dioxide Powder
Plutonium-239 dioxide (PuO2) is a ceramic compound of the radioactive element plutonium (atomic number 94), used in mixed oxide (MOX) nuclear fuel fabrication. Classified under HTS 2844.43.00 as a compound of radioactive elements beyond atomic number 84, including ceramic products containing such elements.
Americium-241 Oxide Source Material
Americium-241 oxide (Am-241 O2) is used in neutron sources, smoke detectors, and industrial gauges as a chemically defined compound of transuranic element americium (atomic no. 95). It qualifies for HTS 2844.43.00 as a compound of radioactive elements with atomic number >84.
Cobalt-60 Irradiated Alloy Pellets
Cobalt-60 alloy pellets are sintered metal alloys containing activated Co-60 isotope for radiotherapy and sterilization applications. Covered by HTS 2844.43.00 for alloys containing radioactive isotopes other than those in prior subheadings.
Cesium-137 Chloride Sealed Sources
Cesium-137 chloride (CsCl) sealed sources are used in brachytherapy and calibration standards, as compounds of fission product Cs-137 (half-life 30 years). HTS 2844.43.00 applies to such chemically defined radioactive compounds.
Iridium-192 Wire for Industrial Radiography
Iridium-192 wire consists of precious metal iridium activated to contain Ir-192 isotope, used in weld inspection gamma radiography. As an alloy/dispersion containing radioactive isotope of precious metal, it falls under HTS 2844.43.00.