Sökning: "Preamplifier"

Visar resultat 1 - 5 av 16 uppsatser innehållade ordet Preamplifier.

  1. 1. PERFORMANCE OF THE PHOTODETECTOR FOR THE ACTIVE SHIELD OF THE COSI SPACE TELESCOPE

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

    Författare :Daniel Álvarez Franco; [2022]
    Nyckelord :Geant4; scintillation; BGO; CsI; simulation; COSI; telescope; photoelectric effect;

    Sammanfattning : The COmpton Spectrometer and Imager (COSI) is a space telescope that aims to study the soft gamma regime (0.2-5 MeV), capable of performing spectroscopy, imaging and polarimetry of cosmic gamma sources. LÄS MER

  3. 2. An Inexpensive Alpha Spectrometer Based on a p-i-n Photodiode : Making Advanced Particle Detectors From Common Commercial Components

    Kandidat-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Elias Arnqvist; [2022]
    Nyckelord :Alpha spectroscopy; alpha particle; particle detector; radiation detector; p-i-n diode; PIN diode; photodiode;

    Sammanfattning : The purpose of this project was to design, construct, and evaluate an alpha spectrometer based on an inexpensive p-i-n photodiode as a radiation detector. The BPX-61 p-i-n photodiode was selected and calculated to have a 93 µm wide sensitive volume at 25 V reverse bias. LÄS MER

  4. 3. Preamplifier Design for Active Electrodes in Single-Channel EEG Applications

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Thorir Marwan Abed; [2018]
    Nyckelord :Electroencephalography EEG ; single-channel; active electrode; current feedback instrumentation amplifier CFIA ; DC servo loop DSL ; portability.; Elektroencefalografi EEG ; singelkanal; aktiv elektrod; strömåterkoppling instrumentförstärkare; DC servo loop DSL ; bärbarhet.;

    Sammanfattning : The implementation of portable electroencephalography (EEG) systems has been known to be complex. During ambulation, the integrity of recorded EEG signals is often impaired by motion artifacts and the time and effort required to set up the system is excessive. LÄS MER

  5. 4. Model based pulse shaping for detection of gamma rays

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Författare :Fredrik Ödmark; [2017]
    Nyckelord :pulse shaping; FWHM; CR-RC; electric noise model; analyse drill samples; gamma ray detector; matched filter; custom filter; clustering;

    Sammanfattning : To analyse drill samples in a mine, a scanner that uses a gamma ray detector can be used. The scanner can analyse the drill sample to quickly see the elements present in the sample without destroying it. LÄS MER

  7. 5. Extraction of energy and time from pile-up pulses with fast sampling ADC analysis techniques

    Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

    Författare :Anton Roth; [2016]
    Nyckelord :moving window deconvolution; alpha-decay; short-lived nuclei; digital pulse processing; Superheavy elements; decay paths; Physics and Astronomy;

    Sammanfattning : Debates of whether Z=114 and N=184 are the next magic numbers in nuclear physics have existed since the earliest predictions made in the 1960s. Until these days they have not been firmly established. LÄS MER