− The present contribution is focused on the measurement of the degradation induced in the case of two splitters and two attenuators used in optical fiber communication systems, under gamma and neutron irradiation. The measurements were carried out at specific wavelengths (λ = 1310 nm and λ = 1550 nm) or over a spectral band (λ = 1510 – 1620 nm), in order to evaluate the wavelength dependence o...

The non-target effect of neutron-irradiation was assessed in unirradiated human peripheral blood lymphocytes using an alkaline comet assay. The isolated cells were incubated with an autologous plasma for 1 h at 37 degrees C before performing the assay. The cells exhibited a significant increase in the tailmoment when the irradiated blood (2 Gy, 570 keV neutron) was the source of plasma. The gen...

This study aimed to evaluate the residual radioactivity in mice induced by neutron irradiation with an accelerator-based boron neutron capture therapy (BNCT) system using a solid Li target. The radionuclides and their activities were evaluated using a high-purity germanium (HP-Ge) detector. The saturated radioactivity of the irradiated mouse was estimated to assess the radiation protection need...

The new research reactor of the Technische Universität München will provide the German needs of neutrons for the beginning of the next century. High intensities of thermal neutrons are provided by a particular densely packed core of highly enriched uranium and are extracted by 12 beam apertures. The low thermal power of 20 MW allows the positioning of a D2 cold source at a maximum of the therma...

A fatigue test method by a miniaturized hourglass-shaped fatigue specimen has been developed for International Fusion Materials Irradiation Facility (IFMIF) and sufficient potential as the alternative to a conventional large specimen was presented. Furthermore, focused ion beam micro-sampling method was successfully applied to microstructural analysis on fracture process. Where, the effects of ...

The embrittlement of two types nuclear pressure vessel steel, 15Kh2NMFA and A508 Cl.2, was studied using different methods magnetic nondestructive testing: micromagnetic multiparameter microstructure stress analysis (3MA-X8) adaptive testing (MAT). mechanical properties reactor (RPV) materials are modified due to neutron irradiation; this material degradation can be characterized methods. For t...

BACKGROUND The aim of the study was to clarify the effect of p53 status of tumor cells on radiosensitivity of solid tumors following accelerated carbon-ion beam irradiation compared with γ-rays or reactor neutron beams, referring to the response of intratumor quiescent (Q) cells. METHODS Human head and neck squamous cell carcinoma cells transfected with mutant TP53 (SAS/mp53) or with neo vect...

High resistivity silicon particle detectors will be used extensively in experiments at the future CERN Large Hadron Collider where the enormous particle fluences give rise to significant atomic displacement damage. A model has been developed to estimate the evolution of defect concentrations during irradiation and their electrical behaviour according to Shockley-Read-Hall (SRH) semiconductor st...

introduction: bleomycins are dna-binding biomolecules, which can be used as targeted therapy carriers when labeled with particle-emitters such as yb-175. in this work the development of yb-175 bleomycin (175yb-blm) has been reported. methods: yb-175 chloride was obtained by thermal neutron irradiation (3 × 1013 n.cm-2.s-1) of natural yb2o3 samples at various neutron fluxes and irradiation time...

Materials designed for nuclear reactors undergo microstructural changes resulting from a combination of several environmental factors, including neutron irradiation damage, gas accumulation and elevated temperatures. Typical ion beam irradiation experiments designed for simulating a neutron irradiation environment involve irradiating the sample with a single ion beam and subsequent characteriza...