Radiation damage produced inBaHfO3irradiated with thermal and fast neutrons

MSGC test with fast neutrons

Results are presented from the exposure of a CMS performance prototype MSGC to a fast neutron beam having an average energy of 20 MeV and an intensity of 7 106 neutrons/mm2/s. A fluence equivalent to 3 years of LHC operation has been accumulated without damages to the detector. The stability of the MSGC operation in a heavily ionising particle flux is reported and the estimation of their produc...

Irradiation with Neutrons and Formation of Simple Radiation Defects in Semiconductors

In this research, cobalt and nickel sulfide nanoparticles (NPs) were grown on AlMCM-41 matrix by using ion exchange method. The prepared samples were irradiated by thermalized neutron that emitted from Am-Be source up to fluencies (7.9+E9n/cm2). After that, X-ray diffraction (XRD), UV-Vis spectroscopy, Fourier transform...

Radiation track and DNA damage

Activation Measurements for Thermal Neutrons

The neutron energy spectrum from the atomic bomb consisted of a range of energies from thermal to fast neutrons. Fast neutrons contribute a larger dose to the human body than lowenergy neutrons per unit flux. The evaluation of the fast neutron component has been performed based on analyses of P (>3 MeV) activity measured immediately after the Hiroshima bomb and Ni (>2 MeV), which has a much lon...

Analysis of chaos and decoherence with cold and thermal neutrons

Abstract. We analyze the coherence properties of polarized neutrons, after they have interacted with a magnetic field undergoing different kinds of statistical fluctuations. We endeavour to probe the degree of disorder of the magnetic field by means of the loss of quantum mechanical coherence of the neutron. We find that the notion of entropy of the field and that of decoherence of the neutron ...