[en] In this report the abstracts of different articles, which are partly published or to be published, are listed, in which the measurements of different nuclear data are described, which were performed in different laboratories in the Federal Republic of Germany. The data concern mainly neutron capture cross sections but also reactions by which neutrons are produced together with other neutron reactions. (HSI)

[en] An apparatus was developed to measure the covariance and delayed covariance of the counting rates in two gamma ray detectors, where each detector is adjusted to accept one of two cascading gamma rays. The apparatus was used to measure the halflife of the 304 keV level of ₇₅As produced in the radioactive decay of ₇₅Se. Preliminary measurements of the angular distributions between pairs of gamma rays cascading through the 316 keV level of ₁₆₉Tm, produced in the radioactive decay of ₁₆₉Yb, were also performed

[en] Separate entries were made in the data base for 117 of the 205 papers presented. 78 papers were previously included in the data base

[en] An international data centre network operating data banks for experimental nuclear data, EXFOR, and for evaluated nuclear data, ENDF/B, is described. (orig.)

[en] Most of the group's effort during the past year was directed toward production of the Radioactivity Handbook, scheduled for publication in 1985. The primary purpose of the Handbook is to provide applied scientists with a source of recommended decay data that is both detailed enough for use in sophisticated applications and organized clearly so as to be usable in simple routine applications. Nuclear physicists should also find the Handbook useful. Recommended decay data are taken from the current version of ENDSDF and analyzed to provide adopted values (e.g., radiation energies and intensities) for presentation in the Handbook. Additional calculations and evaluation provide recommended data for x-rays, conversion electrons, and continuous radiations

[en] The SIGMA1 kernel broadening method is presented to Doppler broaden to any required accuracy a cross section that is described by a table of values and linear-linear interpolation in energy-cross section between tabulated values. The method is demonstrated to have no temperature or energy limitations and to be equally applicable to neutron or charged-particle cross sections. The method is qualitatively and quantitatively compared to contemporary approximate methods of Doppler broadening with particular emphasis on the effect of each approximation introduced

[en] A collection of historically significant papers on analog states is presented

[en] Multi-plate interferometry is discussed in respect to new kinds of phase echo systems and delayed choice experiments. For pulsed sources various resonators systems using crystals are discussed which become more powerful by a combination with active energy shift devices. 25 refs., 5 figs

[en] The Isotopes Project compiles and evaluates nuclear structure and decay data and disseminates these data to the scientific community. From 1940-1978 the Project had as its main objective the production of the Table of Isotopes. Since publication of the seventh (and last) edition in 1978, the group now coordinates its nuclear data evaluation efforts with those of other data centers via national and international nuclear data networks. The group is currently responsible for the evaluation of mass chains A = 167-194. All evaluated data are entered into the International Evaluated Nuclear Structure Data File (ENSDF) and are published in Nuclear Data Sheets. In addition to the evaluation effort, the Isotopes Project is responsible for production of the Radioactivity Handbook

[en] A technique for precise charge measurement of particle tracks in nuclear emulsion is describe. The method is based on measurements of the lacunarity, i.e., fractional transparency, and/or the fractional opacity in the linear track structure of ionization tracks observed in the developed emulsion. The method yields estimates of charge for relativistic Z = 1 and 2 nuclei to a precision of 0.05 charge units, in agreement with Barkas' theoretical model of track structure. The technique is applicable up to Z approx. = 6, but with diminished charge resolution with increasing charge above Z = 3