Essays about: "TLD"

Showing result 16 - 20 of 20 essays containing the word TLD.

1. 16. Absorbed dose distributions in the vicinity of high-density materials in head and neck radiotherapy A quantitative comparison between measurements, Monte Carlo simulations and treatment planning system

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Ulf Bjelkengren; [2007]
   Keywords : Strålterapi; Medicine and Health Sciences;

   Abstract : Varje år diagnostiseras i Sverige ungefär 1100 personer med cancer i huvudhalsregionen. Typiska diagnoser är tungcancer, läppcancer och cancer i struphuvudet. I och runt om munhålan finns det stora skillnader i densitet mellan till exempel vävnad och tänder och vävnad och tandlagningar. READ MORE

3. 17. Empirical measurements to ensure compliance with post therapy dose constraints to family members of radioiodine therapy patients

   University essay from Medicinsk strålningsfysik (tills m KI)

   Author : Itembu Lannes; [2007]
   Keywords : Radioiodine therapy; TLD; dose constraint;

   Abstract : Radioiodine has been used in nuclear medicine for the treatment of thyroid diseases such as Thyroid Cancer and Thyrotoxicosis for many years. The treatment renders the patient radioactive. To minimize the dose to the patients’ relatives and the general public, restric-tions are imposed on the behaviour of the patient. READ MORE

4. 18. Analysis of the uncertainties in the IAEA/WHO TLD postal dose audit programme

   University essay from Medicinsk strålningsfysik (tills m KI)

   Author : Martha Hultqvist; [2006]
   Keywords : Uncertainty analysis; Postal dose audits; TLD audits;

   Abstract : The International Atomic Energy Agency (IAEA) and the World Health Organisation (WHO) operate the IAEA/WHO TLD postal dose audit programme. The purpose of the programme is to verify the beam calibration in radiotherapy centres in developing countries and to check the Secondary Standards Dosimetry Laboratories (SSDLs). READ MORE

5. 19. Verification of dose limitation of the general public and determination of lead equivalence of x-ray rooms at Karolinska University Hospital Huddinge

   University essay from Medicinsk strålningsfysik (tills m KI)

   Author : Dina Tamras; [2006]
   Keywords : Environmental monitoring; TLD; risk analysis; protected areas; general public; x-ray rooms; SSIFS 2005:6;

   Abstract : A variety of radiation sources exist at the Department of Radiology and the Department of Nuclear Medicine at Karolinska University Hospital Huddinge. Radiation sources can also be found in areas outside of these departments due to the wide use of mobile xray machines and fluoroscopic c-arm equipment and also due to the movement of patients that have received diagnostic or therapeutic doses of radionuclides. READ MORE

6. 20. Dosimetric Verification of Intensity Modulated Radiotherapy Treatment Plans with Radiographic Film

   University essay from Lunds universitet/Sjukhusfysikerutbildningen

   Author : Sonny La; [2004]
   Keywords : Strålterapi; Medicine and Health Sciences;

   Abstract : "Intensity modulated radiation therapy (IMRT) is a fairly new modality in the treatment of cancer with radiotherapy. The original idea is Swedish and has existed for more than 20 years. But it is only in recent years that clinics have implemented the IMRT technique. READ MORE