Essays about: "dose rate measurements"
Showing result 16 - 20 of 36 essays containing the words dose rate measurements.
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16. Simulations and Measurements of radiation doses from patients treated with I-131.
University essay from Umeå universitet/RadiofysikAbstract : The aim of this work is to introduce a couple of new exposure scenariosof interest when personnel, family members and general public are externally irradiated from patients treated with Iodine-131. A series of modied ORNL matematical phantoms were used in Monte-Carlo simulations in PENELOPE-2011 to determine dose rates to: a cab driver where thepatient sits in the back seat at opposite side, a newborn child held by an adult patient, a doctor giving treatment to a patient while leaning over the hospital bed and collective effective dose to bus passengers if the patient travels home by bus. READ MORE
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17. Monte Carlo simulations and measurements of the radiation environment at a laser-plasma accelerator
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : In current experiments at the high-power laser facility at the Lund Laser Centre, electrons accelerated to hundreds of MeV over short distances by means of laser wakefield acceleration in produced plasmas. To determine the amount of secondary radiation generated when accelerated electrons interact with surrounding materials is of interest to ensure a safe working environment. READ MORE
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18. The effect of concurrent radiation and calcium in two cancer cell lines
University essay from Lunds universitet/Medicinsk strålningsfysik, Lund; Lunds universitet/SjukhusfysikerutbildningenAbstract : Introduction: Calcium is an important ubiquitous second messenger regarding the maintenance of cellular homeostasis, and is therefore tightly regulated. Calcium induces cell death when internalised into cancer cells after permeabilization of the cell membrane by electroporation. READ MORE
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19. Flattening filter free volumetric modulated arc therapy for extreme hypofractionation of prostate cancer - Decreasing the treatment time and reducing the impact of prostate motion
University essay from Lunds universitet/Sjukhusfysikerutbildningen; Lunds universitet/Medicinsk strålningsfysik, LundAbstract : Purpose: This work examined the feasibility of flattening filter free (FFF) volumetric modulated arc therapy (VMAT) for extreme hypofractionation of prostate cancer. The aim was to investigate the potential gain in treatment time per fraction for extreme hypofractionation of prostate cancer, while preserving or improving the treatment plan quality and radiation delivery quality. READ MORE
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20. Modeling of scatter radiation during interventional X-ray procedures
University essay from Linköpings universitet/Avdelningen för radiologiska vetenskaper; Linköpings universitet/Medicinska fakultetenAbstract : During catheterized x-ray interventions the patient and medical staff is exposed to scatter radiation, as a consequence of tissue interactions. Ionizing radiation for medical purpose is potentially dangerous and can cause malignancy, skin damage and more. READ MORE