This report describes the work that has been done on the water calorimeter project at VSL. The calorimeter determines the absorbed-dose-to water Dw in gray, by measuring the radiation induced temperature change. The temperature of the water will change due to irradiation of a beam ionizing radiation. …

TU Delft has started working on its third satellite mission called DelFFi, which is planned for a launch in 2015. In this graduation project spanning 17 weeks, a faulttolerant storage system consisting of three SD cards was designed, implemented and tested for DelFFi that utilizes triple-modular redundancy …

Exposures to ionizing radiation frommedical examinations are on the rise. An important cause for this has been the advent and ever-increasing use of computed tomography (CT) scans for diagnostic purposes. It is often implied that population aging contributes significantly to this rise. Here, the trends …

This report examines the possibilities of using a solar chimney in a highland tropical climate to promote thermal comfort, air‐quality and energy consumption. The study is carried out using modeling and simulation techniques and is conducted at the Federal University of Viçosa in Brazil. A model is …

PURPOSE: Advanced radiotherapy treatments require appropriate quality assurance (QA) to verify 3D dose distributions. Moreover, increase in patient numbers demand efficient QA-methods. In this study, a time efficient method that combines model-based QA and measurement-based QA was developed; i.e., the …

Within the semiconductor industry the demand for ever decreasing chip and resistor sizes has forced the use of extreme ultraviolet (EUV) waves in lithography machines. The older generation lithography machines used lenses to focus the waves. These lenses aren't transparent for EUV waves with a wavelength …

Achtergrond: Patiënten die een orgaantransplantatie ondergaan hebben, zullen hun leven lang immunosuppressiva moeten slikken. Bij deze patiëntengroep ontwikkelen zich vaak maligne huidaandoeningen (NMSC), voornamelijk plaveiselcelcarcinomen. Doelstelling: De doelstelling van het onderzoek is het weergeven …

Already at diagnosis, head and neck cancer patients are at risk for malnutrition. Local symptoms such as swallowing problems are a major cause of malnutrition in these patients.1 Additionally, malnutrition may result from changes in smell and taste/aversion and loss of appetite. Presence of these systemic …

There are several greenhouses built with solar panels integrated into the roof. In summer time this will operate very well, although broad shadow stripes can result in growth and yield differences. In winter the amount of sunlight is further limited by the solar panels and will result in further reduction …

The objective of this concept is a significant reduction of energy consumption in greenhouses and buildings with large facades and windows by using available solar energy. The scope of this investigation is to study the advantages of a building integrated CPV system. The basic idea is that a larger fraction …