10,101 research outputs found
Analytical microprobes: getting more out of less
The arsenal of techniques capable of getting chemical information from reduced spatial domains has been a constant in the analytical instrumentation. Such evolution has run in parallel with the extraordinary advances in the field of microscopy that have produced a deep impact in our vision of the world and the relationship between functionality and molecular structure. It was obvious since our access to the microscopic world that even the most homogeneous structures where far from being considered as such when the zoom was on. Microbeam analysts are challenged daily by the sophisticated problems which arise with our high-tech world, and the shocking voracity of bioanalysis for any tool capable of a better understanding of our living systems.
Since the early days of modern spectrochemical analysis where the capabilities of arc/spark to perform chemical analysis localized over an area of several square millimeters, a long journey has been run. One of the main advances has been the happy marriage of such techniques with mass spectrometry to get the best of both worlds. Nowadays, lasers, electron guns, ion guns, discharge lamps, electrospray jets, metal capillaries and many other approaches are used to create ions from reduced sample areas that are further sorted and detected in a mass spectrometer. The applications are still growing and it is still difficult to see if there is a limit.
The talk will provide an overview of analytical microprobes focusing in those involving lasers and gas guns. Thus, laser-ionization mass spectrometry, secondary ion mass spectrometry or low-energy ion scattering will be commented and compared with some other. Selected applications will be shown trying to emphasize the strengths of the techniques, without forgetting the inherent weaknesses of each one.Universidad de Málaga. Campus de Excelencia Internacional AndalucĂa Tech
INSA scientific activities in the space astronomy area
Support to Astronomy operations is an important and long-lived activity
within INSA. Probably the best known (and traditional) INSA activities are
those related with real-time spacecraft operations: Ground station maintenance
and operation (Ground station engineers and operators); spacecraft and payload
real-time operation (spacecraft and instruments controllers); computing
infrastructure maintenance (operators, analysts) and general site services.In
this paper, we'll show a different perspective, probably not so well-known,
presenting some INSA recent activities at the European Space Astronomy Centre
(ESAC) and NASA Madrid Deep Space Communication Complex (MDSCC) directly
related to scientific operations. Basic lines of activity involved include:
Operations support for science operations; system and software support for real
time systems; technical administration and IT support; R \& D activities,
radioastronomy (at MDSCC and ESAC) and scientific research projects. This paper
is structured as follows: first, INSA activities in two ESA cornerstone
astrophysics missions, XMM-Newton and Herschel, will be outlined. Then, our
activities related to Science infrastructure services, represented by the
Virtual Observatory (VO) framework and the Science Archives development
facilities are briefly shown. Radio Astronomy activities will be described
afterwards, and finally, a few research topics in which INSA scientists are
involved will be also described.Comment: 6 pages. Highlights of Spanish Astrophysics V Proceedings of the VIII
Scientific Meeting of the Spanish AstronomicalSociety (SEA) held in
Santander, 7-11 July, 200
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