Sökning: "Sebastian Alveteg"

Hittade 2 uppsatser innehållade orden Sebastian Alveteg.

1. 1. Superconducting gates for InP HEMTs

   Master-uppsats, KTH/Tillämpad fysik

   Författare :Sebastian Alveteg; [2023]
   Nyckelord :Cryogenic electronics; HEMT; Superconductors; Applied Physics; Kryogenisk elektronik; HEMT; Supraledare; Tillämpad fysik;

   Sammanfattning : The thesis examines the prospects of using the superconductor NbN as the gatemetal for an InP HEMT. A HEMT or High Electron Mobility Transistor is aheterostructure transistor engineered to reach very high electron mobility. InPHEMTs are used as cryogenic Low Noise Amplifiers (LNAs), which have increasedin demand as quantum computing is scaling up. LÄS MER

3. 2. Study of Environmental Effects on Photo-MultiplierTubes for the X-ray Polarimetry Mission XL-Calibur

   Kandidat-uppsats, KTH/Skolan för teknikvetenskap (SCI)

   Författare :Jonathan Karlsson; Sebastian Alveteg; [2021]
   Nyckelord :;

   Sammanfattning : XL-Calibur is a balloon-borne hard X-ray polarimetry mission with goals to analyze celestial objects too small and distant to be imaged. A crucial part of XL-Calibur is the anti-coincidence shield which through active collimation reduces unwanted hits when gathering data. LÄS MER