We present a picture of confinement based on representation of quarks as pointlike topological defects. The topological charge carried by quarks and confined in hadrons is explicitly constructed in terms of Yang-Mills variables. In 2+1 dimensions we are able to construct a local complex scalar field V (x), in terms of which the topological charge is Q = − i 4π d 2 xǫ ij ∂ i (V * ∂ i V − c.c.). ...

A Compton telescope for dose monitoring in hadron therapy is under development at IFIC. The system consists of three layers of LaBr3 crystals coupled to silicon photomultiplier arrays. (22)Na sources have been successfully imaged reconstructing the data with an ML-EM code. Calibration and temperature stabilization are necessary for the prototype operation at low coincidence rates. A spatial res...

Abstract Using the radioluminescence light of solid state probes coupled to long and flexible fibers for dosimetry in radiotherapy offers many advantages terms probe size, robustness cost efficiency. However, especially hadron fields, radioluminophores exhibit quenching effects dependent on linear energy transfer. This work describes discovery a spectral shift beryllium oxide dependence residua...

Abstract A design of a compact hadron driver for future cancer therapies based on the induction synchrotron concept is given. In order to realize slow extraction technique in fast cycling synchrotron, which allows energy sweep beam scanning, zero momentum-dispersion D ( s ) region and high flat are necessary. The present meets both requirements. lattice has two-fold symmetry with circumference ...