D3S isotope library

D3S isotope library

This isotope library is common across all models of the D3S: D3S PRD, D3S ID and D3S NET.

Library far exceeds ANSI and international standards

  • 42 isotopes – 22 more than ANSI N42.34 standard.
  • Discriminates between Medical, NORM, Industrial and SNM classes.
  • 69 unique signatures which account for shielding and mixed configurations.
  • Detection variation with distance for Caesium-137 at 50 μR/h (0.5 μSv/h) meets ANSI 42.34.
  • Detection ID probability ≥ 90% at over 12 meters (39.3 feet or 13 yards) against nominal source activities.
D3S PRD personal radiation detector screen explained

D3S isotope library

  • Americium-241*
  • Antimony-124
  • Barium-133*
  • Bromine-82
  • Caesium-134
  • Caesium-137 in various shielding*
  • Californium-252****
  • Chromium-51
  • Cobalt-57*
  • Cobalt-60 in various shielding*
  • Europium-152
  • Fluorine-18**
  • Gallium-67*
  • Gold-198
  • Indium-111
  • Iodine-123
  • Iodine-131*
  • Iridium-192 in various shielding*
  • Lutetium-177
  • Lutetium-177m
  • Manganese-54
  • Molybdenum-99
  • Neptunium-237
  • Palladium-109
  • Plutonium, reactor grade in various shielding*
  • Plutonium, weapons grade in various shielding*
  • Plutonium-239*
  • Potassium-40*
  • Radium-226*
  • Scandium-46
  • Selenium-75
  • Sodium-22
  • Strontium-90***
  • Technetium-99m*
  • Thallium-201*
  • Thorium-232*
  • Tin-113
  • Uranium, depleted in various shielding*
  • Uranium, highly enriched in various shielding*
  • Uranium-235*
  • Uranium-238*
  • Yttrium-88

D3S isotope library notes

*Mandatory radionuclides as defined in ANSI N42.34.
**Beta+ emitting radionuclide.
***Beta- emitting radionuclide.
****Neutron emitting radionuclide.

D3S PRD-RIID detection variation with distance for Caesium-137

D3S PRD-RIID detection variation with distance for Caesium-137