Johnson Matthey TRACERCO T401, User Manual, Page: 13 / 26

5.9 Nuclide Options
The Tracerco T401 monitor has been pre-calibrated to measure the list of nuclides given below.
These nuclides have been shown to be of general interest for a wide range of environments where
contamination monitoring might be required. In the event that the operator requires calibration against a range
of alternative isotopes, Tracerco will endeavour to provide the appropriate functionality (subject to the
availability of suitable calibration materials). These options are currently listed on the screen as Nuclide
1 to 9. The customer will be required to specify any additional nuclide calibrations at t he time of
purchase (Subject to Tracerco having capability to source the appropriate radionuclides in a form
suitable for calibration). The identity of the radionuclides will remain on the screen as 1 to 9. It is
recommended that special calibration requirements be discussed with a representative of the Tracerco
monitor calibration and repair service.
Option 1 Americium-241
Option 2 Carbon-14
Option 3 Chlorine-36
Option 4 Lead-210 (d)
Option 5 Lead-210 (w)
Option 6 Radium-226 (d)
Option 7 Radium-226 (w)
Option 8 Strontium-90
Option 9 Cobalt-60
Option 10 Phosphorus-32
Option 11 Plutonium-239
Option 12 Uranium-238
Option 13 Caesium-137
Option 14 Nuclide 1
Option 15 Nuclide 2
Option 16 Nuclide 3
Option 17 Nuclide 4
Option 18 Nuclide 5
Option 19 Nuclide 6
Option 20 Nuclide 7
Option 21 Nuclide 8
Option 22 Nuclide 9
Wet and dry options (w) (d) provide alternative response coefficients to simulate the practical
conditions under which naturally occurring radioactivity is monitored in the environment (particularly within
the oil and gas industry). Calibration for Lead -210 assumes an equilibrium with daughter products
Bismuth-210 and Polonium-210.