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Changes between Version 69 and Version 70 of AstroTechTalk


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Timestamp:
25 Feb 2015, 12:39:29 (9 years ago)
Author:
Ralph Hofferbert
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  • AstroTechTalk

    v69 v70  
    3333|| '''20.02.2015''' || '''Ralf-Rainer Rohloff''' || '''Carbon fiber components in astronomical instruments'''[[BR]][[BR]]Nowadays carbon fiber reinforced plastic (CFRP) is a standard material in aerospace applications. But also in other industrial fields, where products are driven by a low mass in conjunction with a high stiffness, like e.g. in vehicle construction or even sports equipment development, CFRP becomes more and more important.[[BR]][[BR]]There is an increasing trend to apply carbon fiber parts also in astronomical instrumentation. One of the pioneers in this field is the interferometric camera LINC-NIRVANA for the Large Binocular Telescope (LBT). The talk will also discuss other examples in other projects. In addition the properties and the manufacturing process of this interesting material will be described.[[BR]][[BR]]Talk: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/WikiStart/2015-02-20_CFRP.pdf Slides: English][[BR]]Questions: German, English ||
    3434|| '''27.02.2015''' || '''Sascha Douffet''' || '''Occupational safety at MPIA'''[[BR]][[BR]]What is occupational safety ? Why do we need it at MPIA ?  Who "implements" it ? What is an ASA-meeting ? BG ?  Labour inspectorate ?[[BR]][[BR]]Every one of us has heard about it, some of us even have dedicated tasks in security-relevant fields at MPIA. But what is relevant for the rest of our colleagues in terms of training and instructions which aim to avoid any illegal practice.[[BR]][[BR]]Sascha Douffet will explain to us, how this complex field is organized at MPIA and MPG-wide, and how he became a trained employee for occupational safety. Furthermore, aspects like responsibility as individual person and in the team, established tools like ASIP for monitoring, available documentation and the importance of instructions will be discussed. [[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
    35 || 06.03.2015 || Uwe Graser || MATISSE ||
    36 || '''13.03.2015''' || '''Silvia Scheithauer''' || '''The Mid-Infrared Instrument (MIRI) [[BR]]aboard the James Webb Space  Telescope'''[[BR]] [[BR]]The James Webb Space Telescope shall be launched in 2018. Aboard it will  have four scientific instruments: two of them - MIRI and NIRSpec - being  European deliveries with contributions from MPIA. MIRI has been built by  a European science consortium involving more than a dozen scientific  institutes - among them MPIA. [[BR]][[BR]]MIRI includes an imager and two spectrometers capable of doing imaging,  coronography as well as spectroscopy. MPIA has been responsible for the filter wheel and the two  dichroic-grating wheel mechanisms of the instrument. They have been  designed, partly manufactured and tested at MPIA with great involvements  of the design engineering department, the mechanical and the electronics workshops, respectively. The  scientific performance has been tested extensively in 2011 in the UK by  the MIRI test team.[[BR]] [[BR]]MIRI has been delivered to NASA in 2012, since then the test team is  supporting the cryo-test campaigns at the Goddard Space Flight Center,  is preparing the calibration pipeline and science cases. The talk will give an overview of MIRI's history at MPIA, its  scientific performance and the future till the launch in 2018. [[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
     35|| '''06.03.2015''' || '''Uwe Graser''' || '''MATISSE - the successor of MIDI at VLTI'''[[BR]][[BR]]During these days, MIDI gets dismounted at Paranal to make room for the two new "2nd generation VLTI instruments" GRAVITY und MATISSE. MIDI was in use at VLTI between December 2002 (installation) and February 2015. In this talk its successor, MATISSE, will be presented.[[BR]][[BR]]The features of MATISSE (for tongue-twister-enthusiasts: Multi-Aperture  Mid-Infrared         Spectroscopic Experiment) can be easily deduced from its name: Multi-Aperture means several telescopes (at least 2, maximum 4), Mid-infrared is clear anyway ("the wavelength range, in which we mostly emit radiation"), and Spectroscopic is something you don't have to explain at an institute like this.[[BR]][[BR]]More details of MATISSE, like its function (comprising a short intermezzo to "interferometry for dummies") and the composition of the instrument, MPIA's contribution and a bit of side-features like schedule and consortium structure will be briefly presented in this talk as well.[[BR]][[BR]]Talk: German[[BR]]Slides: English, German[[BR]]Questions: German, English ||
     36|| '''13.03.2015''' || '''Silvia Scheithauer''' || '''The Mid-Infrared Instrument (MIRI) [[BR]]aboard the James Webb Space  Telescope'''[[BR]] [[BR]]The James Webb Space Telescope shall be launched in 2018. Aboard it will  have four scientific instruments: two of them - MIRI and NIRSpec - being  European deliveries with contributions from MPIA. MIRI has been built by  a European science consortium involving more than a dozen scientific  institutes - among them MPIA. [[BR]][[BR]]MIRI includes an imager and two spectrometers capable of doing imaging,  coronography as well as spectroscopy. MPIA has been responsible for the filter wheel and the two  dichroic-grating wheel mechanisms of the instrument. They have been  designed, partly manufactured and tested at MPIA with great involvements  of the design engineering department, the mechanical and the electronics workshops, respectively. The  scientific performance has been tested extensively in 2011 in the UK by  the MIRI test team.[[BR]] [[BR]]MIRI has been delivered to NASA in 2012, since then the test team is  supporting the cryo-test campaigns at the Goddard Space Flight Center,  is preparing the calibration pipeline and science cases. The talk will give an overview of MIRI's history at MPIA, its  scientific performance and the future till the launch in 2018. [[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
    3737|| '''20.03.2015''' || '''Michael Lehmitz''' || '''PLC control for MATISSE'''[[BR]][[BR]]Before the use of PLCs ("Programmable Logic Controllers") control tasks for scientific instruments were usually implemented with the help of discrete contact switches, relays and other electro-mechanical components in conjunction with a complex wiring. With increasing complexity of the scientific instruments and their infratructure also the demands with respect to the required control systems and their flexibility have grown.[[BR]][[BR]]For MATISSE, the "Multi-!AperTure mid-Infrared !SpectroScopic  Experiment" for the Very Large Telescope, MPIA applied for the first time PLCs for supervising the instrument's two cryogenic systems, for controlling its calibration light sources and for reading-out sensors on the optical bench.  [[BR]][[BR]]In this talk Michael Lehmitz gives an introduction to PLC-based control technology and presents, via a live-demo, the performance of the MATISSE system.[[BR]][[BR]]Talk: German[[BR]]Slides: English[[BR]]Questions: German, English ||
    3838|| 27.03.2015 || Tom Herbst [[BR]]Patrick Fopp || LBT all-sky camera ||