The gamma spectrometry analysis service includes both sample preparation and the determination of the activity concentration of radioactive isotopes, both natural and of anthropogenic origin, in all matrices. In the gamma spectrometry service, activity concentrations of the following radionuclides are determined: ²³⁵U, ²²⁶Ra, ²¹²Pb, ²¹⁴Pb, ⁷Be, ²⁰⁸Tl, ²¹²Bi, ²¹⁴Bi, ¹³⁴Cs, ¹³⁷Cs, ²²⁸Ac, ²²⁸Th, ²³⁴Th, ⁴⁰K, ⁶⁰Co, ²¹⁰Pb and ²³⁴Th.

Additionally, the service has the necessary tools to carry out dating of sediment cores, based on the determination of ²¹⁰Pb, ¹³⁷Cs or Pu isotopes.

Regarding its applications, this information is of great interest from an environmental point of view and allows for the monitoring of both water and sediments, as well as their temporal evolution.

The following equipment is available for these analyses: Planar-type HPGe gamma spectrometer. ORTEC model GMX50P4-83. Detector with efficiency for 60Co > 50%. Energy range between 3 keV and 3 MeV. 30-liter Dewar. Preamplifier. Digital spectrum analyzer module. Programmable high-voltage power supply, usable with NaI detectors and Germanium detectors (0 – +/- 5000 Volts). Digital spectrum stabilizer. 16K channel acquisition memory. Shielding.

Service location: Nuclear spectrometry laboratory (Andalusian Centre for Marine Studies – CASEM, 2nd floor, pala A. Puerto Real University Campus, University of Cádiz).

To request the service, click on the following link: gamma spectrometry analysis service request

External users must register at the following link: CAU INMAR registration

For more information, please contact the research staff, Melquiades Casas Ruiz: melquiades.casas@uca.es