Sökning: "full width at half maximum"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden full width at half maximum.

  1. 1. Simulations of a back scatter time of flight neutron spectrometer for the purpose of concept testing at the NESSA facility.

    Master-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Benjamin Eriksson; [2018]
    Nyckelord :fusion; JET; Geant4; NESSA; NESSA facility; back scatter tof; tof; time of flight; spectrometer; neutron; ITER; Monte Carlo; simulation;

    Sammanfattning : A back scatter time of flight neutron spectrometer consisting of two scintillation detectors is simulated in Geant4 to examine whether it is possible to perform a proof of concept test at the NESSA facility at Uppsala University. An efficiency of ε = 2.45 · 10^-6 is shown to be large enough for a neutron generator intensity of 1. LÄS MER

  2. 2. Stacked Dual Narrowband Organic Near-Infrared Photodetectors

    Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologi

    Författare :Yazhong Wang; [2017]
    Nyckelord :Near-infrared; photodetectors; CT states; Fabry-Perot resonant cavity; resonant cavity enhancement; tunability; full width at half maximum;

    Sammanfattning : Compared with the detector devices made of inorganic semiconductors, organic photodetectors are granted with additional strengths, such as flexibility, high scalability and bio-compatibility. However, in the family of organic optoelectronic devices, the detectors that are capable of detecting photons at two or multiple specific wavelengths are still missing. LÄS MER

  3. 3. Geogrids in cold climate : Temperature controlled tensile tests & Half-scale installation tests at different temperatures 

    Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser; Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

    Författare :Björn Bonthron; Christian Jonsson; [2017]
    Nyckelord :geogrid; cold climate; low temperature; tensile test; half-scale test;

    Sammanfattning : Due to the findings of extensive damage on geogrids used in a road embankment in northern Sweden, the Swedish Transport Administration (TRV) started to investigate the reason of these damages. Since the geogrids were installed at low temperature, below 0°C, it was suspected that the damages were connected the low temperature. LÄS MER

  4. 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

  5. 5. Structural Investigations of HiPIMS-deposited Diamond-Like Carbon Thin Films using Raman Spectroscopy

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Andreas Eriksen Tell; [2017]
    Nyckelord :;

    Sammanfattning : Diamond-like carbon (DLC) is a versatile material which exhibits excellentmechanical, electrical and optical properties making it suitable for applications rangingfrom biomedical implants to engine components. The properties of DLC thin films aredetermined by the bonding configuration (sp3/sp2 fraction) of its carbon atoms. LÄS MER