When pellets containing the amino acid alanine are irradiated, stable free radicals are produced in concentration which depends on exposure.
The measured response to microwaves of the pellet placed in a manetic field of a paramagnetic resonance spectrometer, is quantitively related to the radiation dose which the pellet absorbed.
Dose Range
Alanine Pellets has a functional dose range of 0.1 kGy to 70 kGy (0.01 kGy to 100kGy may also be achieved) which makes it idea for almost any range of irradiation processes.
Material
A white cylindrical pellet of alanine in a wax binder.
90.9% Amino acid L-alpha alanine
9.1% Paraffin wax
Dimensions
Diameter: 4.82mm +/- 0.01mm (5mm to special order)
Height: 2.8mm +/- 0.1mm
Mass: 60mg +/- 2mg within the overall batch, +/- 0.6mg within a lot. (standard deviation 0.3mg)
Packaging
Two Formats:
Plain Pellets, bulk packed
Alanine Pellets Dosimeters, consisting of pellets sealed in bar coded labelled aluminium foil blisters, packed 1,000 per carton.