Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2010
The measurement of plutonium isotopes, 239Pu and 240Pu, at 670kV on the compact accelerator mass ... more The measurement of plutonium isotopes, 239Pu and 240Pu, at 670kV on the compact accelerator mass spectrometry (AMS) system at the Centro Nacional de Aceleradores (CNA) in Seville, Spain, is now a reality. In this work, we present first Pu AMS results for environmental samples: a sediment core collected in a submarine canyon in the Mediterranean coast of the Spanish region
... designed specifically for SF instruments could use this advantage in order to minimise sample... more ... designed specifically for SF instruments could use this advantage in order to minimise sample mass amount, ie even if the analyte concentration is small in the aspirated solution, the instrumental performances of a SF instrument could ... Internal standard, 6 Li, 103 Rh, 209 Bi. ...
In this paper a simple, rapid and general method for γ-ray efficiency calibration of Ge detectors... more In this paper a simple, rapid and general method for γ-ray efficiency calibration of Ge detectors for environmental samples is presented. This method is based on the use of an active natural solid sample with several γ-emissions (in our case, 226Ra) as the calibrating matrix for determining the full energy peak efficiency (FEPE) εc vs γ-emission energy Eγ and the sample height h in a counting cylindrical geometry. The 226Ra activity concentration is determined by α-particle spectrometry, a method that has previously been validated.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2010
The measurement of plutonium isotopes, 239Pu and 240Pu, at 670kV on the compact accelerator mass ... more The measurement of plutonium isotopes, 239Pu and 240Pu, at 670kV on the compact accelerator mass spectrometry (AMS) system at the Centro Nacional de Aceleradores (CNA) in Seville, Spain, is now a reality. In this work, we present first Pu AMS results for environmental samples: a sediment core collected in a submarine canyon in the Mediterranean coast of the Spanish region
... designed specifically for SF instruments could use this advantage in order to minimise sample... more ... designed specifically for SF instruments could use this advantage in order to minimise sample mass amount, ie even if the analyte concentration is small in the aspirated solution, the instrumental performances of a SF instrument could ... Internal standard, 6 Li, 103 Rh, 209 Bi. ...
In this paper a simple, rapid and general method for γ-ray efficiency calibration of Ge detectors... more In this paper a simple, rapid and general method for γ-ray efficiency calibration of Ge detectors for environmental samples is presented. This method is based on the use of an active natural solid sample with several γ-emissions (in our case, 226Ra) as the calibrating matrix for determining the full energy peak efficiency (FEPE) εc vs γ-emission energy Eγ and the sample height h in a counting cylindrical geometry. The 226Ra activity concentration is determined by α-particle spectrometry, a method that has previously been validated.
Uploads
Papers by J. Mas