The upgraded Amsterdam nuclear microprobe

Vis, R.D.; Kramer, J.L.A.M.; Tros, G.H.J.; Langevelde, F. Van; Mars, L.

doi:10.1016/0168-583x(93)95520-f

Cited by 13 publications

(4 citation statements)

References 10 publications

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“…The MACS center comprises three large instruments: an imaging infra-red Fourier-transform spectrometer (FTIR [4]), a 4 MeV Nuclear Microprobe for elemental analysis [5], and an imaging mass spectrometer. These devices produce largely complementary data; FTIR imaging is primarily used to elucidate and classify the spatial distribution of chemical functionalities (IR functional groups), whereas PIXE [6,7] and specific nuclear reactions quantitatively identify the elemental composition of the sample.…”

Section: A Virtual Materials Analysis Laboratorymentioning

confidence: 99%

VLAM‐G: A Grid‐Based Virtual Laboratory

Afsarmanesh

Belleman

Belloum

et al. 2002

Scientific Programming

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The Grid-based Virtual Laboratory AMsterdam (VLAM-G), provides a science portal for distributed analysis in applied scientific research. It offers scientists remote experiment control, data management facilities and access to distributed resources by providing cross-institutional integration of information and resources in a familiar environment. The main goal is to provide a unique integration of existing standards and software packages. This paper describes the design and prototype implementation of the VLAM-G platform. In this testbed we applied several recent technologies such as the Globus toolkit, enhanced federated database systems, and visualization and simulation techniques. Several domain specific case studies are described in some detail. Information management will be discussed separately in a forthcoming paper.

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Section: A Virtual Materials Analysis Laboratorymentioning

confidence: 99%

VLAM‐G: A Grid‐Based Virtual Laboratory

Afsarmanesh

Belleman

Belloum

et al. 2002

Scientific Programming

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“…Deuterons of 1.4 MeV energy were generated by the Pelletron accelerator of the Vrije Universiteit Amsterdam. The microbeam chamber, target holders, x-ray, and particle detectors were described in an earlier paper (Vis et al, 1993). The analysis was calibrated with standard targets made from mixtures of elemental C and S with proportions C/S = 3/1, 2/1, 1/1, 1/2, and 1/3 atom/atom.…”

Section: Chemical Compositionsmentioning

confidence: 99%

Formation of C_mS_n compounds by photopolymerization of CS₂ in the atmosphere of Jupiter

Heymann

Cataldo²,

Thiemens

et al. 2000

Meteorit & Planetary Scien

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Abstract-Toluene extracts from two (CS,), photopolymers were examined with high-performance liquid chromatography (HPLC), matrix-assisted laser desorption ionization time-of-flight (MALDI-TOF) mass spectrometry, particle-induced x-ray emission (PIXE), and 12C(d,p)13C nuclear microprobing. The extracts contained elemental S and at least from 17 to 20 distinct C,S, compounds with M/Z less than -500 amu. Whereas H2S is the dominant S-bearing compound of the normal jovian atmosphere, elemental S, CS, and CS2 were observed at Shoemaker-Levy 9 cometary impact sites and at altitudes of the transiently disturbed jovian atmosphere where photodissociation and photopolymerization occur. It is uncertain whether the CS2 molecular densities were sufficiently large for both to occur, but photopolymerization could have occurred during larger impacts of Jupiter's history. Because the known stable C,S, compounds are yellow, orange and deep red, they could contribute significantly to the colors of the jovian clouds.

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“…All inclusions were analyzed using an irradiation time of 15 minutes. A detailed description of the PIXE at the VUA is given in Vis et al (1993) and Campos (2002).…”

Section: Pixe Microanalysismentioning

confidence: 99%

“…PIXE measurements were undertaken at the Vrije Universiteit Amsterdam, using a 1.7 MV NEC tandem pelletron accelerator attached to a nuclear microprobe (Vis et al, 1993). For this work protons of 3.0 MeV have been used.…”

Section: Pixe Microanalysismentioning

confidence: 99%

Magmatic Fluid Inclusions from the Zaldivar Deposit, Northern Chile: The Role of Early Metal‐bearing Fluids in a Porphyry Copper System

Campos¹,

Touret

Nikogosian

2006

Resource Geology

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Abstract:The occurrence of a distinct type of multi-solid, highly-saline fluid inclusions, hosted in igneous quartz phenocrysts from the Llamo porphyry, in the Zaldívar porphyry copper deposit of northern Chile is documented. Total homogenization of the multi-solid type inclusions occurs at magmatic temperatures (over 750°C), well above the typical temperatures of hydrothermal fluids (less than 600°C) usually recorded in porphyry copper systems. The analysis of this type of fluid inclusions, using a combination of non-destructive microthermometry, Raman and PIXE techniques and the identification of daughter minerals by SEM method, indicates that the trapped fluid was a dense, complex chloride brine in which Cl, Na, K, Fe, Cu, and Mn are dominant. The high chlorine and metal contents indicate that the metals were separated from the crystallizing magma as homogeneous aqueous chloride-rich solutions that represent the primary magmatic fluids exsolved at high temperatures and depth during the crystallization of the parental intrusive.The multi-solid type inclusion illustrates the mechanism by which ore components are sequestered from the crystallizing parental magma and concentrated in the exsolved magmatic aqueous fluids. These fluids are significant with respect to the origin of porphyry copper deposits, as they are responsible for the first enrichment of metals and represent the precursors of metal-bearing hydrothermal fluids in a porphyry copper system.

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The upgraded Amsterdam nuclear microprobe

Cited by 13 publications

References 10 publications

VLAM‐G: A Grid‐Based Virtual Laboratory

VLAM‐G: A Grid‐Based Virtual Laboratory

Formation of C_mS_n compounds by photopolymerization of CS₂ in the atmosphere of Jupiter

Magmatic Fluid Inclusions from the Zaldivar Deposit, Northern Chile: The Role of Early Metal‐bearing Fluids in a Porphyry Copper System

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The upgraded Amsterdam nuclear microprobe

Cited by 13 publications

References 10 publications

VLAM‐G: A Grid‐Based Virtual Laboratory

VLAM‐G: A Grid‐Based Virtual Laboratory

Formation of CmSn compounds by photopolymerization of CS2 in the atmosphere of Jupiter

Magmatic Fluid Inclusions from the Zaldivar Deposit, Northern Chile: The Role of Early Metal‐bearing Fluids in a Porphyry Copper System

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Formation of C_mS_n compounds by photopolymerization of CS₂ in the atmosphere of Jupiter