14th International Conference on Nuclear Microprobe Technology and Applications

Session

Session 10 - Nuclear Microprobe Applications: Geology and Environmental Science

11 Jul 2014, 09:00

Palazzo del Bo and Centro Culturale San Gaetano, Padova

Conveners

Session 10 - Nuclear Microprobe Applications: Geology and Environmental Science

• Per Kristiansson (Lund University, Physics Department, Nuclear Physics)

105. High-Speed PIXE: Fast Elemental Analysis with a Colour X-Ray Camera

Mr Josef Buchriegler (Helmholtz-Zentrum Dresden-Rossendorf, Germany)

11/07/2014, 09:00

Invited Technical Oral Communication

A new PIXE-beamline equipped with a full-field energy dispersive X-ray camera [1,2] has recently been put into operation at HZDR. This so-called SLcam® comprises poly-capillary optics guiding the proton-induced X-ray fluorescence radiation towards a 264×264 pixel pnCCD-chip, each with an energy resolution of 156 eV (@Mn Kα). Two X-ray optics are available, with a magnification of one and six,...

58. Deuterium/Hydrogen microscopy in astrogeological material.

Mr Linus Ros (Division of Nuclear Physics, Department of Physics, Lund University, Sweden)

11/07/2014, 09:30

Oral Communication

Many primitive meteorites show elevated D/H-ratios relative to terrestrial material. It is believed that this is due to the preservation of the organic molecules which were formed in the presolar molecular cloud [1]. The D/H-ratio varies considerably between different classes of meteorites. This isotopic variation is due to different degrees of mixing of the presolar material with solar system...

56. Measurement of ratios of oxygen isotopes with pNRA at a microprobe beamline.

Dr Maciek Borysiuk (Division of Nuclear Physics, Department of Physics, Lund University, Sweden)

11/07/2014, 09:50

Oral Communication

Isotopic fractionation of light elements such as carbon, oxygen and nitrogen is a basis of many analytical tools in hydrology, geology, paleobiology and paleogeology. The goal of the current experiment is to investigate if a nuclear microprobe could be utilized for those applications. Particularly we focus on measurement of oxygen isotopic ratio. The measurement of stable isotopes of oxygen...

99. Elemental compartmentalization changes of marine diatoms as a reporter of biogeochemical cycles

Teresa Pinheiro (IBB, Instituto Superior Técnico, Universidade de Lisboa, Lisboa, Portugal)

11/07/2014, 10:10

Oral Communication

Studies of phytoplankton elemental composition constitutes a direct measurement of environmental changes, allowing anticipating consequences of anthropogenic alterations to organisms, ecosystems and global marine geochemical cycles. Traditional bulk size-fractionation techniques used to measure phytoplankton elemental composition may present ambiguous results due to considerable detrital...