by Alessandro Zucchiatti, Ursula Alonso, Quentin Lemasson, Tiziana Missana, Brice Moignard, Claire Pacheco, Laurent Pichon and Sandra Camarena de la Mora
Abstract:
A series of granite samples (Grimsel and Äspö) enriched by sorption with natU (10−3M, 10−4M, 10−5M in solution) and La (10−3M, 10−4M in solution) has been scanned by PIXE over a surface of 1920×1920mm2 together with non-enriched Grimsel and Äspö granites and a glass standard. An assessment of minimum detection limits, MDL’s, for several elements has been performed with the use of standard materials. Due to mapping and the high sensitivity of the new AGLAE detection system, U levels around 30ppm can be detected from the whole PIXE spectrum (one low energy detector and four summed filtered detectors) while U reach grains, inhomogeneously distributed over the surface can be clearly identified through the multi elemental maps and analyzed separately. Even the nominally enriched samples have La levels below the MDL, probably because precipitation of the element (and not adsorption) mostly took place, and precipitates were eliminated after surface cleaning carried out before PIXE analyses.
Reference:
Alessandro Zucchiatti, Ursula Alonso, Quentin Lemasson, Tiziana Missana, Brice Moignard, Claire Pacheco, Laurent Pichon and Sandra Camarena de la Mora, “Detection of actinides and rare earths in natural matrices with the AGLAE new, high sensitivity detection set-up”, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, vol. 332, no. Supplement C, pp. 245–250.
Bibtex Entry:
@article{zucchiatti_detection_2014,
series = {21st {International} {Conference} on {Ion} {Beam} {Analysis}},
title = {Detection of actinides and rare earths in natural matrices with the {AGLAE} new, high sensitivity detection set-up},
volume = {332},
issn = {0168-583X},
url = {http://www.sciencedirect.com/science/article/pii/S0168583X14003280},
doi = {10.1016/j.nimb.2014.02.071},
abstract = {A series of granite samples (Grimsel and Äspö) enriched by sorption with natU (10−3M, 10−4M, 10−5M in solution) and La (10−3M, 10−4M in solution) has been scanned by PIXE over a surface of 1920×1920mm2 together with non-enriched Grimsel and Äspö granites and a glass standard. An assessment of minimum detection limits, MDL’s, for several elements has been performed with the use of standard materials. Due to mapping and the high sensitivity of the new AGLAE detection system, U levels around 30ppm can be detected from the whole PIXE spectrum (one low energy detector and four summed filtered detectors) while U reach grains, inhomogeneously distributed over the surface can be clearly identified through the multi elemental maps and analyzed separately. Even the nominally enriched samples have La levels below the MDL, probably because precipitation of the element (and not adsorption) mostly took place, and precipitates were eliminated after surface cleaning carried out before PIXE analyses.},
number = {Supplement C},
urldate = {2017-10-23},
journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
author = {Zucchiatti, Alessandro and Alonso, Ursula and Lemasson, Quentin and Missana, Tiziana and Moignard, Brice and Pacheco, Claire and Pichon, Laurent and Camarena de la Mora, Sandra},
month = aug,
year = {2014},
keywords = {PIXE, Granites, Lanthanum, MDL, Micro mapping, Uranium},
pages = {245--250},
file = {ScienceDirect Full Text PDF:E:\cmam_papers\files\1314\Zucchiatti et al. - 2014 - Detection of actinides and rare earths in natural .pdf:application/pdf;ScienceDirect Full Text PDF:E:\Usuarios\Administrator\Zotero\storage\GXA5W577\Zucchiatti et al. - 2014 - Detection of actinides and rare earths in natural .pdf:application/pdf;ScienceDirect Snapshot:E:\cmam_papers\files\1310\S0168583X14003280.html:text/html;ScienceDirect Snapshot:E:\Usuarios\Administrator\Zotero\storage\KGYNU9AU\S0168583X14003280.html:text/html},
}