Browsing Department of Physics and Technology by Title
Now showing items 1301-1320 of 2323
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Modification of jet substructure in heavy ion collisions as a probe of the resolution length of quark-gluon plasma
(Journal article; Peer reviewed, 2020)We present an analysis of the role that the quark-gluon plasma (QGP) resolution length, the minimal distance by which two nearby colored charges in a jet must be separated such that they engage with the plasma independently, ... -
The modular X- and gamma-ray sensor (MXGS) of the ASIM Payload on the International Space Station
(Peer reviewed; Journal article, 2019-02-18)The Modular X- and Gamma-ray Sensor (MXGS) is an imaging and spectral X- and Gamma-ray instrument mounted on the starboard side of the Columbus module on the International Space Station. Together with the Modular Multi-Spectral ... -
Modulation of Magnetospheric Substorm Frequency: Dipole Tilt and IMF By Effects
(Journal article; Peer reviewed, 2021)Substorm activity is heavily influenced by the Interplanetary Magnetic Field (IMF) Bz component and magnetospheric substorms occur most frequently when Bz is strongly negative. The substorm occurrence rate is also affected ... -
A moiré deflectometer for antimatter
(Peer reviewed; Journal article, 2014-07-28)The precise measurement of forces is one way to obtain deep insight into the fundamental interactions present in nature. In the context of neutral antimatter, the gravitational interaction is of high interest, potentially ... -
Molecular Dynamics Simulation Studies of Piperazine Activated MDEA Absorption Solution with Methane and Carbon Dioxide
(Master thesis, 2010-06-15)Regenerative chemical absorption process is widely used in industry for removal of carbon dioxide from natural gas, with activated aqueous solutions of alkanolamines considered a beneficial blend. One of the most promising ... -
Molecular Dynamics Study of Selective Adsorption of PCB on Activated Carbon
(Journal article, 2011)The selectivity of PCB adsorption from fish oil onto activated carbon (AC) was investigated by means of molecular dynamics to determine the importance of molecular planarity. PCB congeners 77 and 118 were selected for ... -
Molecular dynamics study of water and carbon dioxide separation by means of nanotubes - A new method to capture CO2
(Master thesis, 2018-08-30)Anthropogenic carbon dioxide (CO2) emissions are a huge concern these days. Arguably, but widely accepted, the apparent global climate changes are due to the increasing CO2 concentrations in the atmosphere. Carbon dioxide ... -
Molekylærdynamiske studier av vann- adsorpsjon på hematitt
(Master thesis, 2010-06)I denne oppgaven ser en på hva som skjer på overflaten av en hematittstruktur som blir utsatt for vann. Hematitt er en av strukturene mellom jern og oksygen som i dagliglivet omtales som rust. Sammenlignet med andre ... -
Monitoring and calibration of the ALICE time projection chamber
(Doctoral thesis, 2010-08-31) -
Monolithic atom interferometry
(Journal article; Peer reviewed, 2023)Atom and, more recently, molecule interferometers are used in fundamental research and industrial applications. Most atom interferometers rely on gratings made from laser beams, which can provide high precision, but cannot ... -
Monte Carlo based comparison of constant vs. variable RBE for proton therapy patients
(Master thesis, 2017-06-21)Around the world, the use of protons as an alternative to photons radiation therapy of cancer is becoming more widespread. The motivations for this is that protons enable a reduction of the radiation dose to health tissue ... -
A Monte Carlo feasibility study for neutron based real-time range verification in proton therapy
(Peer reviewed; Journal article, 2019-02-14)Uncertainties in the proton range in tissue during proton therapy limit the precision in treatment delivery. These uncertainties result in expanded treatment margins, thereby increasing radiation dose to healthy tissue. ... -
A Monte Carlo simulation framework for performance evaluation of a proton imaging system without front trackers
(Doctoral thesis, 2020-12-18)Today, radiotherapy is one of the main methods for cancer treatment and it is used to irradiate a tumour with a prescribed dose according to a dose plan designed to irradiate the tumour cells while sparing surrounding ... -
Monte Carlo Simulations of a Moving Target during Spot-Scanning Particle Therapy with Protons
(Master thesis, 2015-06-01)During radiation therapy for cancer, the dose distribution delivered to patients will be affected by the motion of the target volume and the motion of the surrounding tissue and organs. The overall objective of this thesis ... -
Monte Carlo simulations of a scanning system based on a panoramic X-ray tube with a conical anode
(Peer reviewed; Journal article, 2014-08-21)Monte Carlo simulations were used to study photon production in a panoramic X-ray tube with a conical tungsten target to determine the optimal characteristics of the target shape and electron beam configuration. Several ... -
Monte Carlo simulations of neutron based in-vivo range verification in proton therapy – characterstics of proton-induced secondary particles
(Master thesis, 2019-12-17)Radiation therapy is an important treatment modality within cancer treatment, with the aim to deliver a high dose to the target volume while sparing the surrounding tissue. Protons have favourable characteristics of ... -
Monte Carlo simulations of neutron based in-vivo range verification in proton therapy – optimization of detector dimensions and positioning
(Master thesis, 2019-12-06)Proton therapy is a cancer treatment modality expanding in clinical applications around the world. Due to the finite range of a monoenergetic proton beam, it is possible to spare more of the healthy tissue surrounding the ... -
Monte Carlo simulations of neutron doses from pencil beam scanning proton therapy
(Master thesis, 2017-06-13)Introduction: Proton therapy is a more advanced form of radiotherapy that allows better dose conformity to the tumor and a homogeneous dose distribution. A side effect however is the production of secondary neutrons generated ... -
Monte Carlo Simulations of Occupational Radiation Exposure During X-ray Guided Interventional Cardiology Procedures
(Master thesis, 2021-03-05)X-ray imaging is widely used as a diagnostic tool in many medical fields. Medical personnel can often reduce their exposure with distance and sufficient radiation protection, as they do not have to be close to the radiation ... -
Monte Carlo simulations of radiative transport in the atmosphere and ocean
(Master thesis, 2001)