Recent work has shown that a young, rapidly rotating neutron star loses angular momentum to gravitational waves generated by unstable r-mode oscillations. We study the spin evolution of a young, magnetic neutron star including both the effects of gravitational radiation and magnetic braking (modeled as magnetic dipole radiation). Our phenomenological description of nonlinear r-modes is similar ...

I give a brief introduction to the problem of detecting gravitational radiation from neutron stars. After a review of the mechanisms by which such stars may produce radiation, I consider the different search strategies appropriate to the different kinds of sources: isolated known pulsars, neutron stars in binaries, and unseen neutron stars. The problem of an all-sky survey for unseen stars is t...

As it was recently shown by Derishev, initial GRB ejecta are likely to contain comparable number of protons and neutrons. During acceleration process, and/or later, due to interaction with external medium, such ejecta are likely to be split into spatially distinct shells of neutron and proton-electron plasmas. This leads to dynamical effects which can affect the afterglow light curves. In this ...

EPR spectra of alanine dosimeters irradiated by gamma-rays and alpha-particles were measured at different microwave power. The decomposed into three components corresponding to stable radiation-induced radicals. Different ratio the was obtained for gamma- alpha-irradiated alanine. observed effect can be used discrimination contribution alpha- gamma-radiation in mixed radiation field. That may u...

A neutron irradiation facility is being developed at the 88-Inch Cyclotron at Lawrence Berkeley National Laboratory for the purposes of measuring neutron reaction cross sections on radioactive targets and for radiation effects testing. Applications are of benefit to stockpile stewardship, nuclear astrophysics, next generation advanced fuel reactors, and cosmic radiation biology and electronics ...

Boron neutron capture therapy (BNCT) is a form of chemically targeted radiotherapy that utilises the high neutron capture cross-section of boron-10 isotope to achieve a preferential dose increase in the tumour. The BNCT dosimetry poses a special challenge as the radiation dose absorbed by the irradiated tissues consists of several dose components with different relative biological effectiveness...

The operation of a high energy particle accelerator facility is accompanied by neutron fields which are widely distributed in energy. As the neutron component dominates the dose outside the shielding neutron dose meters are needed for monitoring the radiation level at beam lines and experimental areas which can be accessed by personnel. For this purpose the so-called neutron rem-counter of the ...

diation and radiobiological researches and radiation protection. The first two lines are included in the Topical Plan for Scientific Research of JINR and were concentrated on: • neutron spectrometry and radiometry, radiation monitoring; • investigation of radiation fields around thick targets; • physical support of radiobiological experiments; • shielding calculations and design; • investigatio...

Keywords: Special nuclear materials Cosmic-ray radiation Monte Carlo simulation Joint and marginal probability density functions Multiplicity correlation a b s t r a c t The challenge in detection and identification of Special Nuclear Materials (SNM) is to discriminate between the time-correlated neutrons and gamma-rays emitted from SNM and those originating from non-correlated or differently-c...

background: miniature neutron sources with high neutron flux have abundant applications in medicine, industry and researches. the most important general characteristic of miniature neutron sources is their diameter which is 3mm in average. in this research, we have surveyed and designed an am-be miniature neutron source fabrication. materials and methods: this investigation resulted in creation...