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The machines used in High Energy Physics (HEP) experiments, such as accelerators or tokamaks, are sources of gamma and neutron radiation fields. The radiation has a negative influence on electronics and can lead to the incorrect functioning of complex control and diagnostic system designed for HEP machines. Therefore, in most cases the electronic equipments is installed in radiation-safe areas, but...
Linear accelerators for medical purposes represent a source of photoneutron radiation at high energy photon therapy modalities. In this clinical scenario, measurement of the neutron radiation field is a demanding task due to the high in-room photon fluence and its pulsed time structure. The interaction of neutrons with SRAM memory cells can produce upsets in the memory state. This effect has been...
The coherent transition radiation light source was established by using a linear accelerator at Kyoto University Research Reactor Institute. This has been applied to the absorption spectroscopy for SiO2 fine particles at a wavenumber range of 4-12 cm-1.
Experience during percutaneous ion beam therapy at Gesellschaft für Schwerionenforschung showed that the treatment can be improved by in-vivo dose monitoring that is independent of the irradiation device and based on positron emission tomography. It has been studied whether a similar technique can be implemented for high energy photon therapy. Simulation shows that the dose is closely related to...
In this paper, we present the method research of materials identification based on X-ray and photoneutron transmission. X-ray is produced by 7MeV LINAC and photoneutron is emitted as the byproduct of X-ray when beryllium convertor is used to convert X-ray to neutron. The different attenuation coefficients of X-ray and neutron in materials are used to form a factor, named V, to discriminate materials...
Gamma and neutron radiation is produced during the normal operation of linear accelerators like Free-Electron Laser in Hamburg (FLASH) or X-ray Free Electron Laser (X-FEL). Gamma radiation cause general degeneration of electronics devices and neutron fluence can be a reason of soft error in memories and microcontrollers. X-FEL accelerator will be built only in one tunnel, therefore most of electronic...
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