Essays about: "phantom measurement"

Showing result 21 - 25 of 42 essays containing the words phantom measurement.

  1. 21. Measurement of absorbed dose to the skin and its relation with microcircular changes in breast cancer radiotherapy

    University essay from Stockholms universitet/Fysikum

    Author : Chahed Yacoub; [2016]
    Keywords : Radiotherapy; Breast; Microcirculation; Skin;

    Abstract : Radiation therapy has been shown to increase local and regional control as well as overall survival with breast cancer, but the vast majority of patients develop acute skin reactions, which are in part related to microvascular changes. These reactions vary between different skin sites. READ MORE

  3. 22. Measurement of absorbed dose to the skin and its relation with microcircular changes in breast cancer radiotherapy

    University essay from Stockholms universitet/Fysikum

    Author : Chahed Yacoub; [2016]
    Keywords : Radiotherapy; Breast; Microcirculation; Skin; Erythema;

    Abstract : Radiation therapy has been shown to increase local and regional control as well as overall survival with breast cancer, but the vast majority of patients develop acute skin reactions, which are in part related to microvascular changes. These reactions vary between different skin sites. READ MORE

  4. 23. Accuracy of Quantification for Renography with 99mTc-MAG3: A Study on Virtual and Clinical Data

    University essay from Lunds universitet/Medicinsk strålningsfysik, Lund

    Author : Irma Ceric; [2016]
    Keywords : Medicine and Health Sciences;

    Abstract : Aim: Renography with 99mTc-MAG3 is one of the most common nuclear medicine examinations. It’s extensive use justifies a thorough investigation of the methods used to accurately determine the split renal function, for instance with regard to background subtraction and correction for renal depth differ- ences. READ MORE

  5. 24. Calibration measurements in a catalysis reaction chamber using thermographic phosphors

    University essay from Lunds universitet/Fysiska institutionen

    Author : Hanna Karlsson; [2015]
    Keywords : Catalysis; thermographic phosphors; phosphor thermometry; calibration; Physics and Astronomy;

    Abstract : Accurate temperature measurements using thermocouples inside a catalysis reaction chamber is problematic due to the difficulties to attach the thermocouple to the catalysis sample. It is also of interest to accurately know the pressure inside the reaction chamber. READ MORE

  6. 25. Radiochromic Film Dosimetry in Kilovoltage X-­‐ray Beams: A Pre-­‐ Investigation for In Vitro Studies of Bystander Effects

    University essay from Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, Lund

    Author : Zeinab Hossein; [2015]
    Keywords : Medicine and Health Sciences;

    Abstract : Purpose Intensity modulation of radiation is one of several important conditions to evaluate for full understanding of how cells involved in the bystander effect influence each other when cells are exposed to radiation at low and high dose rates. The aim of this study was to develop and apply a useful and practical dosimetric method for measurement of the absorbed dose to cell cultures exposed to intensity modulated radiation in investigations of the bystander effects. READ MORE