Themes > Science > Physics > Atomic Physics > Atomic Theory & Ions & Isotopes > Radioisotopes Produced at Los Alamos > Arsenic-74

Half Life

17.78 days to Ge-74 or Se-74
Major Radiation
Positron - 941 keV
Gamma 596 keV
Beta 135

Form

Arsenic (V) in 0.1 M HCl

Activity

Concentration:
> 1 mCi/ml
Theoretical Sp. Act: 9.924E6 Ci/g As

Chemcial Impurities

< 1,000 parts per million

Radiopurity

> 99 percent (exclusive of As-73)

Source

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

Processing

Recovery from targets by dissolution and distillation

Assay Methods

Gamma assay

Availability

Limited; by request during accelerator operation cycle

Units of Sale

Millicuries of arsenic-74

Company Name

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


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