Modelling kinetic inductance detectors and associated noise sources

Marthi, Kaushal (2020) Modelling kinetic inductance detectors and associated noise sources. Master's Internship Report, Astronomy.

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Abstract

This project addresses the development of a KID model to convert an absorbed radiation power to KID phase, whilst adding noise sources related to measurement with a KID. This model is used in combination with an atmosphere simulation using TiEMPO, developed by Esmee Huijten, in order to attempt to replicate an on-sky observation taken by DESHIMA 1.0. The output is analysed using comparisons of the noise spectra to the observed data, and the integration over time of the noise using Allan variance technique. Results show similar shapes and levels for the spectra with the levels on average over all relevant KIDs comparable. However, we see large scatter of order ±3dB in the noise levels between observed and simulated power spectra. A large difference and scatter in the phase values is also observed, both of these effects indicating the limitations of the implemented simplified model per KID. Allan variance plots show a decrease up to Allan times of ~0.5s, before subsequent increase, showing the optimum chopping speed for DESHIMA 1 would have been 1Hz or faster.

Item Type:	Thesis (Master's Internship Report)
Supervisor name:	Peletier, R.F.
Degree programme:	Astronomy
Thesis type:	Master's Internship Report
Language:	English
Date Deposited:	10 Aug 2020 09:19
Last Modified:	10 Aug 2020 09:19
URI:	https://fse.studenttheses.ub.rug.nl/id/eprint/23044

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