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Newly evaluated (recommended) values of the decay and radiations of the Au radionuclide, obtained with allowance for the information published up to 2014, are presented. The evaluation is performed as part of the DDEP (Decay Data Evaluation Project) program for international cooperation in research work. [ABSTRACT FROM AUTHOR]

Evaluations of the characteristics of the radionuclides Cm, Cm, Cm, and Cm obtained from data published up to 2013 are presented. A computer program is developed for constructing and visualizing the decay schemes of radionuclides and is used to determine the decay schemes for these curium isotopes. [ABSTRACT FROM AUTHOR]

The current status of some decay data used in nuclear astrophysics and cosmochronology is presented. The half-life of Se has been evaluated as 3.6(3) × 10 yr. The total energy of non-neutrino radiation released in act of Ar decay has been obtained being 2.709 (16) keV per disintegration. The recommended half-life values of the long-lived radionuclides ( T ≳ 10 yr) of Al, K, Mn, Fe, Rb, Zr, Tc, Pd, I, Cs, Sm, Lu, Hf, Re, Pb, Th, U, U, Pu, and Cm are given based on the evaluations published until 2010. [ABSTRACT FROM AUTHOR]

New estimated values of the decay and radiation characteristics of the radionuclides 233Th, 239U, 236Np, 236 mNp, 238Np, and 239Np obtained in light of information published in 2009 are presented. [ABSTRACT FROM AUTHOR]

Methods and procedures for monitoring the consistency of sets of recommended data for radioactive nuclide decay characteristics are considered. A procedure is proposed, which combines three methods of checking the consistency of quantities related to the decay scheme of a radionuclide: the decay energy, the energies and probabilities of nuclear transitions, the internal conversion coefficients and the energies and emission probabilities of the radiations accompanying the decay. [ABSTRACT FROM AUTHOR]

The decay data evaluation results are presented for the 242Cm and 244Cm radionuclides decaying to the levels in 238Pu and 240Pu, respectively. The evaluated data have been obtained using information published up to 2005. [ABSTRACT FROM AUTHOR]

Estimated values of the half-life, the energy and absolute emission probability of alpha-particles for radionuclides, forming part of the standard spectrometric alpha-radiation sources: 226Ra with daughter decay products 233U, 238Pu, and 239Pu, are presented as a draft of standard reference data. The recommended values are obtained by analyzing and selecting published estimated and experimental data (up to December 2000). [ABSTRACT FROM AUTHOR]

New estimates of the decay and radiation characteristics of93mNb,111In, and170Tm that take into account data published up to 1999 are presented. [ABSTRACT FROM AUTHOR]

A simple method is described for rapidly determining the activity of alpha-emitting radionuclides in a plane source which is based on measuring the counting rate in a detector under fixed geometry conditions for two positions of the source. [ABSTRACT FROM AUTHOR]

The present status of our understanding of natural synthesis of heavy nuclei in an astrophysical process of rapid neutron capture is reviewed. Particular emphasis is placed on the discussion of r-process duration and the importance of the nuclear constants including beta-delayed fission probabilities. [ABSTRACT FROM AUTHOR]

During a reestimation of the half-lives of 42 radionuclides used to calibrate x-ray and γ-ray detectors a comparison was made between statistical procedures for obtaining the final errors of the estimated values. A rule is proposed for regulating the errors of the estimated values which assumes an increase in the error as a function of the mutual consistency of a set of data determined by the χ2 value. [ABSTRACT FROM AUTHOR]

Recommended energies are given for reference gamma rays in the decay ofEu andTb in the photonenergy range 0.8-1.2 MeV with errors of a few electron volts, which are derived from data on gamma transitions from levels ofGd occurring in (nγ) reactions and the decays ofEu andTb. [ABSTRACT FROM AUTHOR]

A new type of nuclear isomeric transition similar to double beta decay, the βɛ process, is proposed. Under the full ionization of atoms, this process can compete with ordinary types of nuclear isomeric transitions in which the excited metastable state is deexcited via a gamma transition. [ABSTRACT FROM AUTHOR]