الفهرس 
TECHNOLOGY OVERVIEWOnly 14 pages are availabe for public view
 |  | from | 184 |  |  |
| | | from | 184 | | |
Abstract
This thesis studies two types of detectors. The first part is studying and optimization of Gas Electron Multiplied (GEM) detectors as application of high energy radiation detectors. Enhancing the muon spectrometer in the CMS experiment involves incorporating two novel GEM technology-based detectors designed for high-energy radiation detection. Leveraging the dual segmentation of GEM foils helps minimize the likelihood of discharges in the GEM detector. The optimization of ME0, a new GEM technology, has been achieved through an examination of the impact of high-voltage filter resistance and the orientation of GEM foils on discharge propagation probability.
Depending on this thesis study the decision of the final design of ME0 taken to use the Azimuthal orientation for the GEM detector and the 10 kΩ HV filter. The second part of this thesis is studying and optimization of the Thermoluminescence (TL) materials to detect low energy photons such as gamma and X-ray radiation. In this work CaSO4: Dy, Eu is a homemade TL- dosimeter were investigated to be used in medical and industrial radiation dosimetry application. In this work, (99-x) Ca2SO4 - Dy2O3-xEu2O3, x= 0.05, 0.1, 0.2, 0.3, 0.4, 0.5 thermoluminescence phosphors are prepared by using the co-precipitation method. The thermoluminescence dosimetry characteristics such as TL sensitivity, dose response, minimum detectable dose, thermal fading, and the effect of sunlight on the prepared phosphors are investigated. The obtained results indicated that the most sensitive phosphor was obtained at x=0.05. Thermal fading and the effect of day sunlight are also determined. High dose response within the low dose range from 0.01 to 5 Gy is observed. The obtained results showed that the prepared CaSO4 co-doped with Dy and Eu could be used for environmental and personal dosimetry applications. So, the current requirements for low- and high-energy radiation detectors are due to the wide energy range radiation produced during the particles and photons interactions.