Changes between Version 285 and Version 286 of AstroTechTalk

Timestamp:

29 May 2017, 08:45:34 (7 years ago)

Author:

Ralph Hofferbert

Comment:

--

AstroTechTalk

@@ -46 +46 @@
 || '''19.05.2017[[BR]](10hrs, HdA)''' || '''Tobias Bretschi (AIRBUS APWORKS GmbH)''' || '''Metal 3D Printing[[BR]][[BR]]'''In the upcoming !AstroTechTalk, the central topic will be ''additive manufacturing of metal materials'' (metal 3D  printing). AIRBUS APWORKS, a 100% subsidiary of Airbus Defence &  Space from Munich will present their competencies in this field of  manufacturing and will explain the advantages and disadvantages  of the SLM process (Selective Laser Melting) with the help of numerous  parts - mainly from Aerospace projects. Additionally, typical metal  materials for 3D printing will be presented, including the high strength  aluminum alloy Scalmalloy®, which was specifically  developed for additive manufacturing and which shows excellent  properties for Aerospace applications (high yield strength, low CTE, …).[[BR]][[BR]]Information about the presenter:[[BR]]* Born in Heidelberg[[BR]] * Aerospace Engineering Studies at the University of Stuttgart and at Virginia Tech, USA[[BR]] * Dissertation at Airbus Group Innovations, the research centre of Airbus (supervised by TU Darmstadt)[[BR]] * Focal Point for all Aerospace customers at AIRBUS APWORKS[[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2017S1/2017-05-19_3DDruck.pdf Slides: English][[BR]]Questions: German, English ||
 || 26.05.2017 || -- || Bridging day after Ascension Day ||
-|| 02.06.2017 (10hrs, HdA) || Justus Zorn (MPIK) || CHEC-M - A Camera Prototype for the small-size telescopes of the Cherenkov-Telesope-Array (CTA) ||
+|| '''02.06.2017 (10hrs, HdA)''' || '''Justus Zorn (MPIK)''' || '''CHEC-M - A Camera Prototype for the small-size Telescopes of the Cherenkov-Telesope-Array (CTA)[[BR]][[BR]]'''The Gamma-ray Cherenkov Telescope (GCT) is proposed for the Small-Sized  Telescope component of the Cherenkov Telescope Array (CTA). GCT’s  dual-mirror Schwarzschild-Couder (SC) optical system allows the use of a  compact camera with small form-factor photosensors. [[BR]][[BR]]The GCT camera is ∼  0.4 m in diameter and has 2048 pixels; each pixel has a ∼ 0.2 angular  size, resulting in a wide field-of-view. The design of the GCT camera is  high performance at low cost, with the camera housing 32 front-end  electronics modules providing full waveform information for all of the  camera’s 2048 pixels. The first GCT camera prototype, CHEC-M, was  commissioned during 2015, culminating in the first Cherenkov images  recorded by a SC telescope and the first light of a CTA prototype. [[BR]][[BR]]In this talk, Justus Zorn will present results from CHEC-M from both lab measurements and  on-telescope operations. Furthermore, he will discuss first results from  CHEC-S, the second GCT-prototype based on a silicon photomultiplier.[[BR]][[BR]]Presentation: German[[BR]][https://svn.mpia.de/trac/gulli/att/raw-attachment/wiki/AlteVortraege2017S1/2017-06-02_CHECM.pdf Slides: English][[BR]]Questions: German, English ||
 || 09.06.2017 || -- || Pentecost holidays ||
 || 16.06.2017 || -- || Pentecost holidays ||
-|| '''23.06.2017 [[BR]](10hrs, HdA)'''  || '''Luis Hoffman (Nerf, Imec)''' || '''Silicon multi electrode-optrode arrays (MEOA) for optogenetics[[BR]][[BR]]'''Optogenetics allows precise spatiotemporal control of neurons using light which has opened new possibilities in the study of neuronal circuits in the brain. A successful application of optogenetics requires devices that deliver light into the brain. These devices should be lightweight, small and free of complicated tethers. Additionally, such devices should incorporate many light outputs and recording electrodes with a very high resolution to allow for the manipulation of individual neurons and increase the degrees of freedom for neuroscientific experimental design.[[BR]][[BR]]This work presents a collection of novel electrode-optrode arrays for in vitro and in vivo optogenetic applications. These devices integrate silicon nitride waveguide technology with titanium nitride electrodes to channel light into the optrode array site and record the electrical response of the neurons. The light from external sources (laser diodes or optical fibers) is coupled into these waveguides and subsequently out-coupled orthogonally at the array site by means of optical grating couplers. The in vivo optical neural probe (optoprobe) incorporates 12 miniaturized optical outputs (optrodes) for light of 450 nm and 590 nm with an effective size of 6 × 10 µm^2^. They are interlaced along 24 recording electrodes of 10 × 10 µm^2^ on a 100 µm wide and 30 µm thick shank. The in vitro MEOA consists of an array of 8 by 8 optrodes – identical to the in vivo device – interlaced with an array of 8 by 8 electrodes of 60 µm diameter. Both have a pitch of 100 µm. The systems were capable of local artifact-free excitation and recording of channelrhodopsin 2 transduced neurons.[[BR]][[BR]]Presentation: English[[BR]]Slides: English[[BR]]Questions: English  ||
+|| '''23.06.2017 [[BR]](10hrs, HdA)''' || '''Luis Hoffman (Nerf, Imec)''' || '''Silicon multi electrode-optrode arrays (MEOA) for optogenetics[[BR]][[BR]]'''Optogenetics allows precise spatiotemporal control of neurons using light which has opened new possibilities in the study of neuronal circuits in the brain. A successful application of optogenetics requires devices that deliver light into the brain. These devices should be lightweight, small and free of complicated tethers. Additionally, such devices should incorporate many light outputs and recording electrodes with a very high resolution to allow for the manipulation of individual neurons and increase the degrees of freedom for neuroscientific experimental design.[[BR]][[BR]]This work presents a collection of novel electrode-optrode arrays for in vitro and in vivo optogenetic applications. These devices integrate silicon nitride waveguide technology with titanium nitride electrodes to channel light into the optrode array site and record the electrical response of the neurons. The light from external sources (laser diodes or optical fibers) is coupled into these waveguides and subsequently out-coupled orthogonally at the array site by means of optical grating couplers. The in vivo optical neural probe (optoprobe) incorporates 12 miniaturized optical outputs (optrodes) for light of 450 nm and 590 nm with an effective size of 6 × 10 µm^2^. They are interlaced along 24 recording electrodes of 10 × 10 µm^2^ on a 100 µm wide and 30 µm thick shank. The in vitro MEOA consists of an array of 8 by 8 optrodes – identical to the in vivo device – interlaced with an array of 8 by 8 electrodes of 60 µm diameter. Both have a pitch of 100 µm. The systems were capable of local artifact-free excitation and recording of channelrhodopsin 2 transduced neurons.[[BR]][[BR]]Presentation: English[[BR]]Slides: English[[BR]]Questions: English ||
 || 30.06.2017 || || ||
 || 07.07.2017 || -- || No room available ||