Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Andrzej Markowicz"'
Autor:
G. Buzanich, D. Wegrzynek, Andrzej Markowicz, Peter Wobrauschek, Christina Streli, Katharina Uhlir, E. Chinea-Cano, Martina Griesser
Publikováno v:
X-Ray Spectrometry. 39:98-102
A portable focused-beam X-ray fluorescence (XRF) spectrometer was designed and manufactured taking into account a huge variation in material, size and shape of museum objects. The spectrometer is equipped with a vacuum chamber enclosed with a Kapton-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7ef3df0b254deb3d4cc92e140bd207f
https://doi.org/10.1002/xrs.1231
https://doi.org/10.1002/xrs.1231
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 608:157-162
A digital pulse processor, suitable for 3D imaging with focused ion beam techniques, has been developed using a high performance FPGA (field-programmable gate array) and a high-level FPGA design tool. The hardware and software implementation of sever
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e1b1845d73af95c9c90833922b5e8d7
https://doi.org/10.1016/j.nima.2009.04.049
https://doi.org/10.1016/j.nima.2009.04.049
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 267:2073-2076
Capabilities of spectroscopic ion beam analysis (IBA) techniques that are available in ion microprobe facilities can be greatly improved by the use of digital pulse processing. We report here development of a digital multi parameter data acquisition
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeb24108aff4bafbc1ae18661ab25d6b
https://doi.org/10.1016/j.nimb.2009.03.033
https://doi.org/10.1016/j.nimb.2009.03.033
Autor:
Peter Kregsamer, Florian Meirer, Andrzej Markowicz, Peter Wobrauschek, D. Wegrzynek, E. Chinea-Cano, C. Jokubonis, Christina Streli
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 63:1404-1407
Based on the design of the low cost Total Reflection X-Ray Fluorescence attachment module available since 1986 from Atominstitut (WOBRAUSCHEK-module) which can be attached to existing X-ray equipment, a new version was developed which allows the anal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1c383485b9714685e15271c9398fcc8
https://doi.org/10.1016/j.sab.2008.10.020
https://doi.org/10.1016/j.sab.2008.10.020
Publikováno v:
X-Ray Spectrometry. 37:635-641
The performance of x-ray capillary lenses has been evaluated. The tests were carried out using an x-ray tube set-up. A single glass capillary with tapered inner channel, a monolithic glass polycapillary, and an in-house manufactured single metallic c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::352bb2914445b2ea1113c5bdcc25bc1a
https://doi.org/10.1002/xrs.1113
https://doi.org/10.1002/xrs.1113
Autor:
Günter Buzanich, Peter Wobrauschek, E. Chinea-Cano, Andrzej Markowicz, Martina Griesser, Katharina Uhlir, D. Wegrzynek, Christina Streli
Publikováno v:
X-Ray Spectrometry. 37:450-457
X-ray fluorescence analysis (XRF) is a powerful tool for nondestructive analysis of chemical elements present in art and archeological material. Nevertheless, investigations of objects possessing a glassy matrix still offer some problems using XRF be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d3116ca5d11f22103bf8cca4cefbe97
https://doi.org/10.1002/xrs.1074
https://doi.org/10.1002/xrs.1074
Autor:
S. Bamford, Andrzej Markowicz, Peter Wobrauschek, D. Wegrzynek, E. Chinea-Cano, Günter Buzanich, Christina Streli
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 62:1252-1256
A portable focused-beam XRF spectrometer was designed, constructed, and manufactured. The spectrometer allows to detect and perform analysis of chemical elements from Na upwards. The system is equipped with a compact vacuum chamber to reduce absorpti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4f28c5854f599293702946748b70a20
https://doi.org/10.1016/j.sab.2007.08.003
https://doi.org/10.1016/j.sab.2007.08.003
Autor:
E. Chinea Cano, D. Wegrzynek, S. Bamford, Andrzej Markowicz, D. Hernández Torres, R. Padilla Alvarez
Publikováno v:
X-Ray Spectrometry. 36:27-34
Owing to the increased demands from society for reliable/certified analytical results, x-ray fluorescence laboratories face an urgent need for quality management system (QMS) implementation, in particular complying with the general requirements for t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e1f6980d451ebf7860061e8bd62c71a5
https://doi.org/10.1002/xrs.923
https://doi.org/10.1002/xrs.923
Publikováno v:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 562:650-655
Low-energy accelerators have in the past produced a major part of our current knowledge of nuclear physics. Today they are mainly used for applied research and industrial applications. In view of this, the International Atomic Energy Agency (IAEA) ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::244021a093c7d67f89a7e9bceec99ad4
https://doi.org/10.1016/j.nima.2006.02.128
https://doi.org/10.1016/j.nima.2006.02.128
Publikováno v:
X-Ray Spectrometry. 35:207-214
This paper describes the specific philosophy behind the functioning of the IAEA XRF Laboratory at Seibersdorf and its role in the XRF community. Some examples of the research and development activities and the results obtained are given. They include
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::638a92545805924fb586c8a2a53103d7
https://doi.org/10.1002/xrs.897
https://doi.org/10.1002/xrs.897