Essays about: "DOPPLER"

Showing result 16 - 20 of 106 essays containing the word DOPPLER.

1. 16. Characterization of micromotion induced by RF phase shift with photon correlation detection in a Paul trap

   University essay from KTH/Fysik

   Author : Ebba Edqvist; [2022]
   Keywords : Ion trap; Paul trap; Micromotion; Photon correlation detection; Jonfälla; Paul-fälla; Mikrorörelse; Fotonkorrelationsdetektion;

   Abstract : Trapped ions in a Paul trap can experience micromotion on top of the wanted secular motion.Micromotion can for example cause Doppler shifts in spectroscopy measurements, making it important to know the amplitude of the motion. READ MORE

3. 17. Design of Instrumentation & Control and Optical Table Instruments for the Divertor Flow Monitor Diagnostic at ITER

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : Niklas Hermansson; [2022]
   Keywords : Coherence imaging; fusion; optics; plasma diagnostic; polarization; spectroscopy; Zeeman-Doppler imaging;

   Abstract : This master's thesis describes the process of the design and instrument selection for a future optical table, part of a plasma flow monitor diagnostic system at the international thermonuclear experimental reactor, ITER. The diagnostic system is designed to detect the presence of edge localized mode, low to high confinement mode transition of plasma, and plasma flow velocity in the divertor region of the reactor. READ MORE

4. 18. Observing the radial velocity of the Sun with the AlbaNova heliostat

   University essay from Stockholms universitet/Institutionen för astronomi

   Author : Gustaf Beckman Berg; [2022]
   Keywords : ;

   Abstract : The aim of this project was to investigate the radial velocity variations of the Sun as observed from the Earth. This was accomplished by observing Doppler shifts of spectral lines in the region around 6300 Å. Telluric O2 lines were used as reference. READ MORE

5. 19. Laser cooling, state initialization and laser manipulation of a trapped ion

   University essay from Stockholms universitet/Fysikum

   Author : Julius Andersson; [2021]
   Keywords : Ion trap; Quantum computer;

   Abstract : One way of realizing a quantum computer is to use an ion trap. The research group Trapped Ion Quantum Technologies at Stockholm university were operating an ion trap with strontium ions. To increase the coherence time they installed a magnetic field shielding. Therefore the experimental setup had to be partially rebuilt. READ MORE

6. 20. Optimisation of line of sight matching to obtain wind vectors from the SIW satellite

   University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Author : Theresia Hestad; [2021]
   Keywords : Remote sensing; Wind measurements; Middle atmosphere; Retrieval; Scan bias; Satellite;

   Abstract : SIW, Stratospheric Inferred Winds, is one of the upcoming Swedish research satellites, aiming to study the winds in the middle atmosphere by measuring the Doppler shifts in molecules such as O3 with a limb viewing sub-mm spectrometer. By conducting simulations on the expected observations, the pointing sensitivity requirement of the satellite was investigated to be able to optimise the matching of the wind vectors. READ MORE