Essays about: "vacuum environment"

Showing result 1 - 5 of 60 essays containing the words vacuum environment.

  1. 1. Calibration and preparation of the data analysis of the DORN experiment on board the Chang'E 6 lunar mission.

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Íñigo de Loyola Chacartegui Rojo; [2023]
    Keywords : Radon; lunar mission; alpha spectrometry; space instrumentation; performance testing and validation;

    Abstract : As part of the first agreement between the French (CNES) and the Chinese (CNSA) space agencies in terms of space exploration, the DORN instrument will fly on board the Chinese Chang'E 6 mission in 2024. It aims to measure the amount of Radon escaping from the lunar soil to better understand what governs the concentration of this noble gas which contributes to the endogenous origin of the lunar exosphere. READ MORE

  3. 2. Concept investigation into Metal Plasma Source for High Powered Space Applications

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Ludvig Borg; [2023]
    Keywords : High-powered; Electric Propulsion; Vacuum Arc Thruster; VASIMR; Metal Plasma; Magnetohydrodynamics; COMSOL Multiphysics;

    Abstract : This thesis explores the potential of utilizing metal-based plasma sources as a sustainable solution for high-powered electric propulsion and its implications for future interplanetary travel. Focusing on the Vacuum Arc Thruster and the Variable Specific Impulse Magnetoplasma Rocket engine, the study encompasses numerical simulations, analytical comparisons, and performance analyses to assess the feasibility of metal plasma fuels in space missions. READ MORE

  4. 3. Analysis and Design of a Microgravity Drop Tower

    University essay from Luleå tekniska universitet/Rymdteknik

    Author : Tristan Edwards; [2023]
    Keywords : drop tower; microgravity;

    Abstract : A drop tower is a device that produces a microgravity environment by allowing an experiment to free fall for a short period of time, usually less than 10 seconds. Certain types of drop towers are also capable of reproducing the gravitational conditions of other celestial bodies, such as Lunar and Martian gravity. READ MORE

  5. 4. An ecological investigation of spiders in coastal meadows : in Uppland and Sörmland

    University essay from Uppsala universitet/Institutionen för biologisk grundutbildning

    Author : Marie Langbak; [2022]
    Keywords : Spiders; coastal meadows; ecology; diversity; invertebrates;

    Abstract : Coastal meadows are important habitats for many animals, but the habitats are threatened by changes in land use such as abandonment of grazing. On the Swedish East coast, many coastal meadows can be found and they are highly influenced by the brackish marine environment which supports large populations of spiders. READ MORE

  6. 5. Adaption of Inertial Confinement Fusion Resultsto Spherical Plasma Expansion at Comets

    University essay from Uppsala universitet/Institutionen för fysik och astronomi; Uppsala universitet/Institutet för rymdfysik, Uppsalaavdelningen

    Author : Viktor Sparrman; [2022]
    Keywords : Plasma; Inertial confinement fusion; comet; plasma expansion; Vlasov-Poisson; integral invariants; ergodicity;

    Abstract : Recent missions to solar system comets, such as ESA's Rosetta mission, raise interest for models and descriptions of their plasma environment. The interaction with various space phenomena such as stellar wind make the construction of an analytical description difficult. READ MORE