Sökning: "Monte Carlo calculation"

Visar resultat 6 - 10 av 64 avhandlingar innehållade orden Monte Carlo calculation.

1. 6. Optimisation of environmental gamma spectrometry using Monte Carlo methods

   Författare :Francisco Javier Hernández Suárez; Peter Appleby; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Gamma spectrometry; Environmental multitracers; Monte Carlo simulations; HPGe detectors; Efficiency calibration; Self-absorption corrections.; Fysik; Physics; Fysik; Fysik; Physics;

   Sammanfattning : Dissertation in Environmental Physics to be publicly examined in Häggsalen (Ångström Laboratory), Uppsala University, on Friday, November 8, 2002 at 10:00 am for the degree of doctor of philosophy in Physics. The examination will be conducted in English. LÄS MER

3. 7. Development of Monte Carlo track structure simulations for protons and carbon ions in water

   Författare :Thiansin Liamsuwan; Hooshang Nikjoo; Shuzo Uehara; David Liljequist; Michael Dingfelder; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Radiation track structure; Monte Carlo simulations; interaction cross sections; classical trajectory Monte Carlo CTMC method; microdosimetry; ion beams; Medical Radiation Physics; medicinsk strålningsfysik;

   Sammanfattning : The goal of radiation therapy is to eradicate tumour cells while minimising radiation dose to healthy tissues. Ions including protons and carbon ions have gained increasing interest for cancer treatment. LÄS MER

4. 8. Response Matrix Reloaded : for Monte Carlo Simulations in Reactor Physics

   Författare :Mickus Ignas; Jan Dufek; Jaakko Leppänen; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Kärnenergiteknik; Nuclear Engineering;

   Sammanfattning : This thesis investigates Monte Carlo methods applied to criticality and time-dependent problems in reactor physics. Due to their accuracy and flexibility, Monte Carlo methods are considered as a “gold standard” in reactor physics calculations. However, the benefits come at a significant computing cost. LÄS MER

5. 9. Beam Modelling for Treatment Planning of Scanned Proton Beams

   Författare :Peter Kimstrand; Bengt Glimelius; Erik Traneus; Nina Tilly; Anders Ahnesjö; Thomas Bortfeld; Uppsala universitet; []
   Nyckelord :Radiation sciences; proton therapy; treatment planning; beam modelling; dose calculation; Monte Carlo; Strålningsvetenskap;

   Sammanfattning : Scanned proton beams offer the possibility to take full advantage of the dose deposition properties of proton beams, i.e. the limited range and sharp peak at the end of the range, the Bragg peak. LÄS MER

7. 10. Dosimetry Studies of Different Radiotherapy Applications using Monte Carlo Radiation Transport Calculations

   Författare :Shirin Abbasinejad Enger; Hans Lundqvist; Anders Ahnesjö; Irena Gudowska; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; External Beam Radiotherapy; Gadolinium Neutron Capture Therapy; Gadolinium Neutron Capture Brachytherapy; Targeted Radionuclide therapy; Detector Response Modelling; Monte Carlo Simulation.; Radiological physics; Radiofysik;

   Sammanfattning : Developing radiation delivery systems for optimisation of absorbed dose to the target without normal tissue toxicity requires advanced calculations for transport of radiation. In this thesis absorbed dose and fluence in different radiotherapy applications were calculated by using Monte Carlo (MC) simulations. LÄS MER