Preface: This book is the fifth edition of what was previously known as BNL-325, Neutron Cross Sections, Volume 1, Resonance Parameters (Third Edition, 1973) by S. F. Mughabghab and D. I. Garber. The first edition of the BNL-325 reports which appeared in 1955 was prepared by Donald J. Hughes and John A. Harvey. The fourth edition was published by Academic Press in two parts in 1981 and 1984. As with the last two editions, only recommended parameters are presented. For more detailed information relating to experimental data, the user is encouraged to consult the web site of the National Nuclear Data Center at Brookhaven National Laboratory, www.nndc.bnl.gov.

In addition to the extensive list of detailed individual resonance parameters for each nucleus, this book contains thermal cross sections and average resonance parameters as well as a short survey of the physics of thermal and resonance neutrons with emphasis on evaluation methods. The introduction has been expanded to include commonly used nuclear physics formulas and topics of interest such as direct or valence neutron capture, sub-threshold fission, the nuclear level density formula, and the treatment of electric dipole radiation in terms of the Fermi Liquid Model. As in the last edition, additional features have been included to appeal to a wider spectrum of users. These include (1) spin-dependent scattering lengths that are of interest to solid state as well as nuclear physicists and neutron evaluators, (2) Maxwellian average 30-keV capture cross sections that are of importance to astro-physicists, (3) s-, p-, and d-wave average radiative widths, gamma strength functions for s- and p-wave neutrons, and (4) nuclear level density parameters.
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Summary Table: Atlas contains evaluated neutron data for 98 elements and 486 ground and isomeric states of 476 isotopes (381 isotopes with resonance data). A complete list of evaluated nuclei is shown in the summary table, isotopes that contain resonance data are shown in green.

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Web: Boris Pritychenko, NNDC, Brookhaven National Laboratory
Last Modified: November 21, 2006