Nuclear Spectrometry Laboratory
The Nuclear Spectrometry Laboratory (LEN) began operations in 2005 and is subordinate to the Analytical Techniques Service of the Environment and Waste Division. This laboratory performs radiometric measurements using alpha and gamma spectrometry techniques and their applications in radiochemical characterizations of low and medium activity waste samples from nuclear power plants, geological and environmental samples and food. Among the established analytical protocols, the following stand out: determination of radionuclides: 3H, 14C, 55Fe, 59Ni, 63Ni, 90Sr, 93Zr, 94Nb, 99Tc, 129I, 235U, 238U, 238Pu, 239Pu, 240Pu, 241Pu, 242Pu, 241Am, 242Cm and 243Cm, in addition to several gamma emitters, 7Be, 60Co, 125Sb, 137Cs, among others. The Laboratory has established competence to meet demands arising from R&D projects and Research Institutions and Companies
The laboratory's instrumental infrastructure includes:
- Canberra gamma spectrometry system, with coaxial HPGe detector model 5019, with 50% nominal efficiency, DSA-2000 coupled to a microcomputer with a Multichannel Spectrum Acquisition Board and with Genie2K software.
- Canberra gamma spectrometry system, with ultra low energy detector, GUL 0110, coupled to a microcomputer with a Multichannel Spectrum Acquisition Board and Genie2K software.
- Alpha Spectrometry System with Surface Barrier Detector, Model Alpha Analyst 7200-04.
LEN Technical Team:
Aluísio Souza Reis Júnior
Ângela Maria Amaral
Geraldo Frederico Kastner
Milton Batista Franco
Roberto Pellacani Guedes Monteiro
Eliane Silvia Codo Temba
Alexander Dario Esquivel López