Abstract:Our external beamline has been upgraded to achieve beam focusing and provide in-air PIXE imaging.• Lateral resolution of 50 m was achieved using magnetic quadrupole lenses and ultrathin Si3N4 exit window. • Quantitative concentration maps of a longitudinal section of a whole thick wheat grain have been determined.
“…At our external beamline, the proton beam is focused with a doublet of magnetic quadrupole lenses and exits the beamline nozzle through a 200 nm Si 3 N 4 window yielding a beamspot of 50 50 m 2 at a working distance of few mm. 6 The overall proton current on the sample can be adjusted between a few tenths of nA up to 10 nA. After the installation, the separate stages of the new PB-WDS spectrometer were carefully aligned using the signal from the Fe metallic target induced with 3 MeV proton beam.…”
A new parallel-beam wavelength dispersive (PB-WDS) X-ray emission spectrometer was constructed at the external proton beamline at the Microanalytical Centre of the Jožef Stefan Institute in Ljubljana. The spectrometer combines...
“…At our external beamline, the proton beam is focused with a doublet of magnetic quadrupole lenses and exits the beamline nozzle through a 200 nm Si 3 N 4 window yielding a beamspot of 50 50 m 2 at a working distance of few mm. 6 The overall proton current on the sample can be adjusted between a few tenths of nA up to 10 nA. After the installation, the separate stages of the new PB-WDS spectrometer were carefully aligned using the signal from the Fe metallic target induced with 3 MeV proton beam.…”
A new parallel-beam wavelength dispersive (PB-WDS) X-ray emission spectrometer was constructed at the external proton beamline at the Microanalytical Centre of the Jožef Stefan Institute in Ljubljana. The spectrometer combines...
“…At the ion beam facilities around the world, several different methods have been implemented for monitoring the beam dose including simultaneous RBS measurements 16,17 monitoring the exit window 18 or applying electrostatic deection systems, 19 beam prole monitors 20 and beam choppers. 21 Because of these reasons we seized the opportunity to create an external millibeam PIXE setup which fulls the requirements of advanced atmospheric aerosol and heritage science research. The new in-air PIXE setup together with the new ion beam analytical vacuum chamber, the re-built scanning nuclear microprobe and a recently installed scanning nuclear nanoprobe makes the ion-beam analytical arsenal of the ATOMKI Tandetron Laboratory complete.…”
Section: Introductionmentioning
confidence: 99%
“…In the past years this have been the direction of development at external beam facilities in the eld of detection. 21,[27][28][29] Another aspect which had to be taken into consideration was the limited availability of beamtime. Besides ion beam applications, numerous projects in nuclear physics, nuclear astrophysics, planetary science and materials sciences are running at the various beamlines exploiting the new possibilities provided by the state-of-the-art infrastructure of the ATOMKI Tandetron Laboratory.…”
Section: Introductionmentioning
confidence: 99%
“…At the ion beam facilities around the world, several different methods have been implemented for monitoring the beam dose including simultaneous RBS measurements 16,17 monitoring the exit window 18 or applying electrostatic deflection systems, 19 beam profile monitors 20 and beam choppers. 21…”
Section: Introductionmentioning
confidence: 99%
“…In the past years this have been the direction of development at external beam facilities in the field of detection. 21,27–29…”
A novel in-air PIXE (Particle Induced X-ray Emission) setup was developed which is capable of the fast, sensitive, fully quantitative characterization of elemental composition of thin and thick samples for elements with Z > 6.
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