Essays about: "x-ray diagnostics"

Showing result 1 - 5 of 13 essays containing the words x-ray diagnostics.

1. 1. A Machine Learning Approach on Analysis of Emission Spectra for Application in XFEL Experiments

   University essay from Uppsala universitet/Institutionen för fysik och astronomi

   Author : Harald Agelii; [2023]
   Keywords : Structural biology; Machine learning; Neural networks; emission spectrum; XFEL; X-ray free electron laser; SFX; Serial femtosecond X-ray crystallography; Proteins; Diagnostics;

   Abstract : In this thesis we investigate two potential applications of machine learning in the context of X-ray imaging and spectroscopy of biological samples, particularly such using X-ray free electron lasers (XFEL). We first investigate the possibility of using an emission spectrum, recorded from a sample after being probed by an incident X-ray, as a diagnostic tool. READ MORE

3. 2. Evaluation of Computer Tomography based Cancer Diagnostics with the help of 3D Printed Phantoms and Deep Learning

   University essay from KTH/Skolan för teknikvetenskap (SCI)

   Author : Alex Back; Pontus Pandurevic; [2023]
   Keywords : Machine Learning; Deep Learning; Convolutional Neural Networks; Perception Loss; CNN; DL; ML; Computer Tomography; CT; Cancer Diagnostics; Evaluation of Image Reconstruction; Radiomics; Tumors; 3D Printed Phantoms; 3D Printing; PLA;

   Abstract : Computed x-ray tomography is one of the most common medical imaging modalities andas such ways of improving the images are of high relevance. Applying deep learningmethods to denoise CT images has been of particular interest in recent years. READ MORE

4. 3. A Comparative Study on the effect of different hyperparameters on the performance of VGGNet-16 for detection of Cardiomegaly in Chest X-ray Images

   University essay from KTH/Datavetenskap

   Author : Ouday Ahmed; Oliver Lindblad; [2022]
   Keywords : ;

   Abstract : Computer aided diagnostics (CAD) systems have been widely researched and used in the medical field since it was introduced in the 1960s. The system functions as a support for radiologists in medical examinations using imaging technology such as X-rays, MRI and CT scans to diagnose diseases and treat injuries. READ MORE

5. 4. Behandling och omvårdnad av fåglar med vingfrakturer

   University essay from SLU/Dept. of Clinical Sciences

   Author : Alexandra Svensson; [2020]
   Keywords : vingfraktur; fåglar; omvårdnad; behandling; tamfågel; vildfågel;

   Abstract : Vingfrakturer är en vanlig orsak till att fåglar behöver vård på veterinärkliniker. Syftet med arbetet var att söka vetenskaplig information om behandling och omvårdnad av vingfrakturer hos fåglar. Intentionen var även att jämföra skillnaderna på behandling och omvårdnad mellan tamfåglar och vilda fåglar. READ MORE

6. 5. A Near-Infrared Diffraction Radiation Spectrometer for MHz Repetition Rate Electron Bunch Diagnostics at the European XFEL

   University essay from Uppsala universitet/Tillämpad kärnfysik

   Author : Simon Fahlström; [2019]
   Keywords : European XFEL; XFEL; Free-Electron Laser; FEL; bunch diagnostics; Coherent Diffraction Radiation; Spectrometer;

   Abstract : We have built a spectrometer to investigate the Near-Infrared (NIR) range of this radiation, which is used for bunch diagnostics at the European X-ray Free-Electron Laser. This could give information on the development of microbunching, periodic features in the longitudinal charge profile of the bunches which have a negative impact on the operation of the facility. READ MORE