Themes > Science > Physics > Atomic Physics > Atomic Theory & Ions & Isotopes > Radioisotopes Produced at Los Alamos > Selenium-75

Half Life

119.78 days by electron capture to arsenic-75

Major Radiation

Gamma 279.5 keV

Form

Selenium (VI) in 1 M HCl
Activity
Concentration:
> 10 mCi/ml
Theoretical Sp. Act: 14,468 Ci/g Se

Chemcial Impurities

< 1,000 ppm Carrier may be added: inquire

Radiopurity

> 99.9% excluding 8.5 day Se-72

Source

Spallation by protons in natural rubidium bromide targets at the IPF station

Processing

Dissolution, precipitation, filtration, edissolution

Assay Methods

Gamma assay

Availability

In stock

Units of Sale

Millicuries of selenium-75

Company Name

Los Alamos National Laboratory
Contact Person
Isotope Sales
505-667-4675
isotopes@lanl.gov


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