Sökning: "detector circuit"

Visar resultat 6 - 10 av 32 uppsatser innehållade orden detector circuit.

1. 6. Software Development and Qualification Testing of a CubeSat X-ray Monitor

   Master-uppsats, Luleå tekniska universitet/Institutionen för system- och rymdteknik

   Författare :Marcus Persson; [2019]
   Nyckelord :embedded software; cubesat; software; firmware; cubes; mist; x-ray; fpga; asic; weeroc;

   Sammanfattning : The CUBES (CUbesat x-ray Background Explorer using Scintillators) is a payload on the KTH student satellite MIST (MIniature STudent satellite) to evaluate Silicon Photo-multiplier technology and new scintillators such as GAGG (Gadolinium Aluminium Gallium Garnet, Gd3Al2Ga3O12) for future use in hard X-ray polarisation studies of Gamma-Ray Bursts. CUBES itself is designed to study the MIST in-orbit radiation environment by using a detector which is comprised of a silicon photomultiplier coupled to different scintillator materials. LÄS MER

3. 7. Development of a novel test system for the ATLAS-upgrade at CERN

   Kandidat-uppsats, Uppsala universitet/Högenergifysik

   Författare :Andreas Lycksam; Martin Andersson; [2018]
   Nyckelord :;

   Sammanfattning : The ATLAS-upgrade is a project with the endeavors to enhance the performance of the ATLAS detector located at CERN. The intention of this project is to enable testing of the upgraded components locally at Ångströmlaboratoriet, Uppsala University, in cooperation with CERN. LÄS MER

4. 8. RF BiST för att detektera IQ-imbalanser avseende överhörningseffekter för avancerade antennsystem

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Kishore Khed; [2018]
   Nyckelord :Technology and Engineering;

   Sammanfattning : Internet of Things (IoT) is a network constituted by uniquely identifiable commodity objects or devices equipped with some sensing system. To achieve high data rates required for IoT devices, a modern wireless communication system, known as Advanced Antenna Systems(AAS), leads to significant improvement, by increasing not only the data rate but also spectrum efficiency and the channel capacity. LÄS MER

5. 9. Time-Resolved Photoluminescence Studies of InGaP Nanowires for Improving the Internal Quantum Efficiency

   Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Fasta tillståndets fysik

   Författare :Lert Chayanun; [2017]
   Nyckelord :Physics and Astronomy;

   Sammanfattning : Semiconductor Nanowires are promising building blocks for advanced optoelectronic devices since their small diameter give rise to quantization effects. The small diameter also makes them susceptible to non-radiative recombination due to surface states. LÄS MER

7. 10. Design of a 30 GHz PLL for use in Phased Arrays

   Master-uppsats, Lunds universitet/Institutionen för elektro- och informationsteknik

   Författare :Byron Murphy; [2016]
   Nyckelord :pll; phase-locked loop; beamforming; vco; qvco; Technology and Engineering;

   Sammanfattning : This project includes the research and implementation of a high frequency phase-locked loop (30 GHz or more) for beamforming use in a phased antenna array. The phase-locked loop includes a quadrature voltagecontrolled oscillator with a 10% tuning range and 417 degrees of phase control with a 10 degree resolution, a current mode latch in the divide-bytwo configuration operates over the quadrature voltage-controlled oscillator’s tuning range while consuming less than 583 uA of current, Dtype flip flops in a divide-by-8 configuration, a phase-frequency detector, a charge-pump, and a loop filter. LÄS MER