Essays about: "X-ray"

Showing result 1 - 5 of 627 essays containing the word X-ray.

  1. 1. Test and Calibration of CUBES: a CubeSat X-ray Detector

    University essay from KTH/Fysik

    Author : Caroline Holmberg; [2022]
    Keywords : Applied Physics; Astroparticle Physics; Tillämpad fysik; Astropartikelfysik;

    Abstract : CUBES is an X-ray detector that will be placed aboard the KTH 3U CubeSat mission, MIST. Its purpose is to detect high energy X-rays as well as to test various components in a space environment. Two CUBES will be placed on the satellite. Each CUBES consists of a printed circuit board (PCB) with three multi pixel photon counters (MPPCs). READ MORE

  2. 2. Hg concentration in humus soils in different Arctic and Subarctic tundra vegetation types : Including a method comparison for analyzing metals in humus soils

    University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Author : Alice Sandvärn; [2022]
    Keywords : Hg concentration; vegetation types; Arctic tundra; elevation gradient; XRF;

    Abstract : Heavy metals, such as mercury (Hg), have a long residence time in the atmosphere and can be transported long distances and deposited in the Arctic via wet and dry deposition. Still, there are few studies on the complex mercury cycle and how different plant groups absorb Hg. READ MORE

  3. 3. Geological characterization of rock samples by LIBS and ME-XRT analytical techniques

    University essay from Luleå tekniska universitet/Geovetenskap och miljöteknik

    Author : Nsioh Elvis Nkioh; [2022]
    Keywords : geological characterization; analytical techniques; LIBS; ME-XRT; SEM; element maps; SEM-EDS; secondary electrons; rock samples; automated ore microscopy; SEM-Zeiss Merlin; element weight percentages; element oxide percentages; scanning techniques; analytical methods; laser induced breakdown spectrometry; multi energy x-ray transmission; scanning electron microscope; carbon coating; mineralogical classification; element composition; rock chemistry; rock chemical composition;

    Abstract :      One of the major challenges in earth sciences and mineral exploration has been to determine with high accuracy and at a fast rate the elemental composition as well as the general chemistry of a rock sample. Many analytical techniques e.g. READ MORE

  4. 4. Determining the alignment of Solar Orbiter instruments STIX and EUI during solar flares

    University essay from Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Author : Sofia Tynelius; [2022]
    Keywords : Solar flares; the Sun; STIX; EUI; alignment; pointing;

    Abstract : Solar Orbiter is a mission launched in 2020 that will take images closer than ever of the Sun. It has ten instruments on board, including The Spectrometer/Telescope for Imaging X-rays (STIX) and The Extreme Ultraviolet Imager (EUI). READ MORE

  5. 5. Expression and purification of pyruvate transporting human mitochondrial pyruvate carrier (MPC) protein complex for structural studies

    University essay from Lunds universitet/Examensarbeten i molekylärbiologi

    Author : Markus Wendler; [2022]
    Keywords : Biology and Life Sciences;

    Abstract : Pyruvate is one of the main molecules needed for the citric acid cycle, which produces energy in the form of ATP. The citric acid cycle reaction occurs in the mitochondrial matrix, and for pyruvate to participate in the reaction, it needs to be transported from the cytosol across the mitochondrial membranes into the mitochondrial matrix. READ MORE