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4th EPS TIG Hands-on Event for Science, Technology and Interfaces (CERN, IdeaSquare)
Description
This is the 4th EPS Technology and Innovation Group's (TIG) Maker Event for Science, Technology and Interfaces at IdeaSquare, CERN.
The purpose of the event is to offer young physicist and engineering students from European institutions new hands-on skills in hardware, software and related interfaces, around the domain of Health. Limited participation is through application (see Registration) for Continental Europe (including CERN Member States). Please note teaching will be in English.
Background
Physics and engineering students need various skills which -classically- are difficult to obtain during studies. Experiments necessitate many hard skills, such as physical understanding of the process, but also a bundle of other skills like know-how in instrumentation, hard- and software and strong team-work capabilities. In a physics laboratory an ever-changing neuralgic problem is interfacing of the experiment with –finally- the human who analyses, interprets and exploits the data.
This Hands-on-event aims to target this situation.
We propose to work on interfacing employing “hands-on” = really available devices. “Really available” means that the devices are modern, compact and affordable also for a standard laboratory. We propose two Experiments and an introduction and easy-to use to Labview & FPGA software.
Experiment 1:
Doppler measurements with light
The Doppler effect is the change in frequency of a wave when either is emitter or receiver are moving relative to each other. Measurements based on the doppler effect are widely used in medicine, astronomy and radar. In this experiment students will build a simple laser doppler measurement and measure the speed of a moving target.
The setup to be created by the students works with a red laser and splits the output light into reference and “measurement” paths, respectively. Interference between these is to be detected in order to measure the speed of the target object, a mirror moving on a translation stage. The students work together on optics, opto-mechanics, detection-electronics, data recording, analysis and finally presentation of results and limits. A more detailed material list will appear soon. Apart from a low-power red laser, there will be a beam-splitter, a motion stage, photodiode with transimpedance amplifier and a digital oscilloscope.
Experiment 2:
nm-precise piezo-actuation and sensing via a new, compact superresolution sensor
The session begins with a comprehensive introduction (20-30 min) about the state of the art in nm-positioning explaining the experimental challenge for the students. An experimental setup including a simple but nm-precise piezo-actuator will be created by the students. It will be powered by simple electronics and its movements monitored by an integrated strain gauge, a miniature Wheatstone bridge. In collaboration with HORIBA, a new optical sensor (OXYO, 2+1axes, nm-resolution), based on superresolution image-treatment will be assembled and operated in parallel. Apart from the piezo-actuator and the OXYO-sensor, a PC with adapted software, powersupplies, multimeters, some optical elements, mechanics and an oscilloscope are part of the setup.
Results of the measurements will be recorded, compared and presented by the students.
Take a comprehensive peek into one of the basics of nano-science: To see where you are on a nm-level!
Both experiments enlarge the participants’ hands-on skills in applying modern technologies and furthermore foster communication skills when it comes to “complex” in-project synchronisation.
Directions to CERN
Directions on how to get to CERN you can find here: https://home.cern/directions
IdeaSquare is next to the Globe, here.
For registering your laptop/mobile phone for wifi access at CERN, please fill in a request here: http://cern.ch/registerVisitorComputer - and use Markus Nordberg as the CERN contact person (on the last page of the request form).
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