Sectors of Activity

• Multigamma ray standard solutions
• Water equivalent resin matrices
• Gaseous standards
• Kits of gamma sources
• Multigamma ray sources

Water equivalent resin matrices

The resin matrices are characterized in waterequivalent activity, and are designed mainly for calibrating gamma spectrometers (GeLi, Ge hyperpure, etc.) in the field of environmental measurements.

• Density of resin : 1,15 ± 0,01 g.cm^-3
• Density of water : 0,9982 g.cm^-3 (4/20°C)

They are designed to replace water matrices with aqueous media there is a risk of fixation on walls, or precipitation of certain radionuclides. These phenomena induce changes in geometry which impair functional and constancy testing of the measuring chain.
The use of water-equivalent resin matrices eliminates the risk of leakage and contamination during transport and handling, and ensures stability over time due to the incorporation of the radionuclides into a resin mass.
LEA offers the following water-equivalent resin matrices :

• Baryum 133,
• Europium 152,
• Mixture of radionuclides (²⁴¹Am, ¹⁰⁹Cd, ⁵⁷Co, ¹³⁹Ce, ⁵¹Cr, ¹¹³Sn, ⁸⁵Sr, ¹³⁷Cs, ⁶⁰Co, ⁸⁸Y),
• Any other radionuclide or mixture on request.

Download product references 
For a custom source request, contact LEA.

Radionuclides

• Americium 241 (²⁴¹Am)
• Barium 133 (¹³³Ba)
• Cadmium 109 (¹⁰⁹Cd)
• Cerium 139 (¹³⁹Ce)
• Cesium 137 (¹³⁷Cs)
• Chromium 51 (⁵¹Cr)
• Cobalt 57 (⁵⁷Co)
• Cobalt 60 (⁶⁰Co)
• Tin 113 (¹¹³Sn)
• Europium 152 (¹⁵²Eu)
• Strontium 85 (⁸⁵Sr)
• Yttrium 90 (⁹⁰Y)