Sökning: "dmax"

Hittade 3 uppsatser innehållade ordet dmax.

1. 1. Uncertainties in the use of synthetic CT (sCT) for daily online adaptive radiotherapy for lung cancer

   Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

   Författare :Johansson Vivika; [2023]
   Nyckelord :Medicine and Health Sciences;

   Sammanfattning : Background and purpose: Cone Beam Computed Tomography (CBCT) based online adaptive radiotherapy (oART) has been clinically implemented for several anatomical sites worldwide. However, random and abrupt anatomical changes with large density alterations can occur in lung patients, leading to uncertainties with synthetic computed tomography (sCT) and dose calculation. LÄS MER

3. 2. Channel estimation in mobile wireless systems

   Uppsats för yrkesexamina på avancerad nivå, KTH/Signalbehandling

   Författare :Pazi Alli Idd; [2012]
   Nyckelord :Time-variant channel; Discrete Prolate Spheroidal Sequences DPSS ;

   Sammanfattning : The demands of multimedia services from mobile user equipment (UE) for achieving high data rate, high capacity and reliable communication in modern mobile wireless systems are continually ever-growing. As a consequence, several technologies, such as the Universal Mobile Telecommunications System (UMTS) and the 3rd Generation Partnership Project (3GPP), have been used to meet these challenges. LÄS MER

4. 3. Monte Carlo based investigation of the influence of accelerator head geometry on megavolt photon beam quality in radiotherapy

   Master-uppsats, Lunds universitet/Sjukhusfysikerutbildningen

   Författare :Beatrice Jutemark; [2005]
   Nyckelord :Strålterapi; Medicine and Health Sciences;

   Sammanfattning : "This project concerns the precise characterization of one of the VARIAN accelerators used in the radiotherapy clinic at the Finsen Centre at Copenhagen University Hospital, Denmark. Detailed characteristics of the clinical beam incident on the patient are almost impossible to measure. LÄS MER