Having to design electronics for high-energy physics experiment such as the Electromagnetic CALorimer (ECAL) of the Compact Muon Solenoid (CMS) experiment leads to the study of components under irradiation. We are designing a radhard readout system. This paper will present the facility we are using to study and validate the radiation hardness of our system. This is a proton beam located at the ...

Pt@TiO2 core-shell nanostructures were prepared through a hydrothermal method. The dye-sensitization of these Pt@TiO2 core-shell structures allows for a high photocatalytic activity for the generation of hydrogen from proton reduction under visible-light irradiation. When the dyes and TiO2 were co-excited through the combination of two irradiation beams with different wavelengths, a synergic ef...

The use of heavy liquid metals, and especially of lead-bismuth eutectic (LBE) or lead for accelerator-driven systems (ADS) and lead-cooled (Pb) or lead-alloy-cooled (primarily Pb-Bi) fast reactor (FR) concepts of Generation IV requires an assessment of their compatibility with structural materials. Their deployment requires that the materials compatibility issue will be resolved, with and witho...

We report on measurements performed on silicon pixel sensor prototypes exposed to a 200 MeV proton beam at the Indiana University Cyclotron Facility. The sensors are of n + /n/p + type with multi-guard ring structures and p-stop electrode isolation on the n +-side. Electrical characterization of the devices was performed before and after irradiation up to a proton fluence of 4 × 10 14 p/cm 2. W...

Photoactive whole cells were isolated for the first time from a red alga, Galaxaura falcata KJELMAN, of the Chaetangiaceae. By means of proton uptake experiments, its optimum irradiation ntensity required for photosynthesis, effec of Ca2+, Mg2+, Mn2+ and Na+ both mono-and divalent ions, uncouplers and a non-ionic surfactant were examined. Photochemical 14CO2 fixation u der different monochromat...

The diffusion properties of H(+) in ZnO nanorods are investigated before and after 20 MeV proton beam irradiation by using (1)H nuclear magnetic resonance (NMR) spectroscopy. Herein, we unambiguously observe that the implanted protons occupy thermally unstable site of ZnO, giving rise to a narrow NMR line at 4.1 ppm. The activation barrier of the implanted protons was found to be 0.46 eV by mea...

Radiotherapy has a long history in the organ-sparing management of choroidal melanoma. Joining plaque radiotherapy and proton irradiation, stereotactic robotic photon irradiation is a new tool in the radiation oncologist's armamentarium for ocular tumors. The non-coplanar fields with steep dose gradients are well suited to spare uninvolved retina, anterior chamber, and the optic nerve. In our p...

In this work we have studied systematically the changes in the magnetic behavior of highly oriented pyrolytic graphite (HOPG) samples after proton irradiation in the MeV energy range. Superconducting quantum interferometer device (SQUID) results obtained from samples with thousands of localized spots of micrometer size as well on samples irradiated with a broad beam confirm previously reported ...

The spatial energy distributions of beams of protons accelerated by ultrahigh intensity (>10(19)Wcm2) picosecond laser pulse interactions with thin foil targets are investigated. Using separate, low intensity (<10(13)Wcm2) nanosecond laser pulses, focused onto the front surface of the target foil prior to the arrival of the high intensity pulse, it is demonstrated that the proton beam profile c...

Beam commissioning of the new proton therapy system for University of Tsukuba was started in September 2000. The present system employs a synchrotron with a maximum energy of 250MeV and two rotating gantries. The beam was successfully accelerated up to 250MeV and transported to the irradiation nozzles. The position of the beam extracted from the synchrotron was confirmed to be very stable and s...