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Environmental radioactivity has been continuously monitored in Switzerland since 1956. At that time, the increase in radioactivity due to above-ground nuclear weapons testing prompted the authorities to set up a network for control measurements. Since 1986, the monitoring of ionising radiation as well as radioactivity in the environment has been a statutory mandate of the FOPH. On this basis, the FOPH draws up an annual sampling and measurement program. In this task, the FOPH relies on cooperation with partners from the federal administration, cantons and universities. The Radiation Protection Ordinance also requires the FOPH to publish the results of radioactivity measurements in an annual report. This is arranged by topic and contains in-depth explanations, discussions and interpretations. A large part of the measurement results is also presented on the platform radenviro.ch, which supplements the printed annual report.
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Radiation effects --- Radiation --- Radiation effects. --- Radiation.
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Plasmas comprise more than 99% of the observable universe. They are important in many technologies and are key potential sources for fusion power. Atomic and radiation physics is critical for the diagnosis, observation and simulation of astrophysical and laboratory plasmas, and plasma physicists working in a range of areas from astrophysics, magnetic fusion, and inertial fusion utilise atomic and radiation physics to interpret measurements. This text develops the physics of emission, absorption and interaction of light in astrophysics and in laboratory plasmas from first principles using the physics of various fields of study including quantum mechanics, electricity and magnetism, and statistical physics. Linking undergraduate level atomic and radiation physics with the advanced material required for postgraduate study and research, this text adopts a highly pedagogical approach and includes numerous exercises within each chapter for students to reinforce their understanding of the key concepts.
Plasma radiation. --- Radiation --- Measurement.
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