Development Of Lumped Element Kinetic Inductance Detectors For Mm Wave Astronomy At The Iram 30 M Telescope
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| Author | : Rösch, Markus |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 220 |
| Release | : 2014-01-21 |
| Genre | : Science |
| ISBN | : 3731501104 |
This thesis studies the development of LEKID arrays for the use in a mm-wave camera for the IRAM 30m telescope. This includes the design and fabrication of the superconducting microresonators, the modeling and optimization of the mm-wave coupling to the detector and the characterization of the arrays at low temperatures. The results obtained brought IRAM to test a prototype instrument at the telescope, where first astronomical results have been achieved, which are also presented in this work.
| Author | : Markus Rösch |
| Publisher | : |
| Total Pages | : 216 |
| Release | : 2020-10-09 |
| Genre | : Science |
| ISBN | : 9781013280658 |
This thesis studies the development of LEKID arrays for the use in a mm-wave camera for the IRAM 30m telescope. This includes the design and fabrication of the superconducting microresonators, the modeling and optimization of the mm-wave coupling to the detector and the characterization of the arrays at low temperatures. The results obtained brought IRAM to test a prototype instrument at the telescope, where first astronomical results have been achieved, which are also presented in this work. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.
| Author | : Mazzocchi, Francesco |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 212 |
| Release | : 2022-07-01 |
| Genre | : Technology & Engineering |
| ISBN | : 3731511819 |
This work aimed at designing, studying and producing the first prototypes of KIDs tailored for fusion plasma polarimetric diagnostics. Diamond was considered for the first time as substrate material for low-temperature superconducting detectors given its unmatched optical, radiation hardness and thermal qualities, properties necessary for working environments potentially saturated with radiation. This work represents a first step toward the optimization and final application of this technology.
| Author | : Hofherr, Matthias |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 216 |
| Release | : 2014-09-26 |
| Genre | : Technology & Engineering |
| ISBN | : 3731502291 |
Superconducting nanowire singe-photon detectors (SNSPD) are promising detectors in the field of applications, where single-photon resolution is required like in quantum optics, spectroscopy or astronomy. These cryogenic detectors gain from a broad spectrum in the optical and infrared range and deliver low dark count rates and low jitter times. This thesis improves the understanding of the detection mechanism of SNSPDs and intodruces new and promising multi-pixel readout concepts.
| Author | : Hellmann, Sebastian |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 218 |
| Release | : 2020-01-10 |
| Genre | : Technology & Engineering |
| ISBN | : 3731508044 |
| Author | : Preuß, Alan |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 194 |
| Release | : 2021-01-14 |
| Genre | : Technology & Engineering |
| ISBN | : 3731510413 |
A design process for HTS DC cables was developed for high current applications. Based on the design process, a 35 kA HTS DC cable demonstrator was developed. The superconducting elements of the demonstrator were manufactured and tested individually at 77 K. Afterwards, the demonstrator cable was assembled and tested at 77 K. The assembled demonstrator successfully reached 35 kA at 77 K and self field conditions.
| Author | : Naeckel, Oliver |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 220 |
| Release | : 2016-11-14 |
| Genre | : Physics |
| ISBN | : 3731505266 |
Electrical power grids are the lifeline of technical infrastructure and fundamental for industry and modern lives. Fault Currents can disrupt the continuous supply of electrical energy, cause instable grid conditions and damage electrical equipment. The Air Coil Superconducting Fault Current Limiter (AC-SFCL) is a measure to effectively limit fault currents. The concept is investigated and proven experimentally by designing, building and successfully testing a 60 kV, 400 V, z = 6% demonstrator.
| Author | : Zou, Shengnan |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 174 |
| Release | : 2017-12-01 |
| Genre | : Technology (General) |
| ISBN | : 3731507153 |
High temperature superconducting (HTS) bulks and stacks of coated conductors can be magnetized to become trapped-field magnets that provide much stronger magnetic fields than those reachable with conventional permanent magnets. This work investigates the flux dynamics during the magnetization of HTS trapped-field magnets and proposes possible strategies to improve the trapped field produced by the pulsed field magnetization method that is promising for practical applications.
| Author | : Charaev, Ilya |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 176 |
| Release | : 2018-07-31 |
| Genre | : Nanowires |
| ISBN | : 3731507455 |
This work presents a comprehensive investigation of the influence of geometry-dependent factors on performance metrics of superconducting single-photon detectors. With fundamental knowledge, main investigations are focused to extend the spectral bandwidth and to enhance the detection efficiency, especially in infrared range. The developed technology of single-spiral detectors and unconventional electron-beam lithography allows to improve the performance of superconducting detectors.
| Author | : Raasch, Juliane |
| Publisher | : KIT Scientific Publishing |
| Total Pages | : 226 |
| Release | : 2019-04-23 |
| Genre | : Technology (General) |
| ISBN | : 3731507862 |
This work investigates the capability of the high-temperature superconductor YBCO to sense the evolution of the electrical field of THz pulses. A deposition process for ten unit-cell thin films and a sub-μm patterning process were developed to enable high sensitivities. The detector response to THz exctiations and its electrical-field sensitivity were studied. This unique characteristic allows for the investigation of instabilities of the THz radiation emitted from synchrotron storage rings.
