TUNL is responsible for data evaluations
in the mass range A = 3 - 20. The current status of these evaluations is
summarized below:
| Nuclear Mass | Publication/Status | Comments |
| A = 3 | Nucl. Phys. A474, 1 (1987) | TUNL |
| A = 4 | Nucl. Phys. A541, 1 (1992) | TUNL* |
| A = 5 - 10 | Nucl. Phys. A490, 1 (1988) | Penn** |
| A = 5 | Preliminary version mailed Feb. 1998 | TUNL* |
| A = 6 | Preliminary version scheduled for late 1998 | TUNL |
| A = 11 - 12 | Nucl. Phys. A506, 1 (1990) | Penn** |
| A = 13 - 15 | Nucl. Phys. A523, 1 (1991) | Penn** |
| A = 16 - 17 | Nucl. Phys. A564, 1 (1993) | TUNL |
| A = 18 - 19 | Nucl. Phys. A595, 1 (1995) | TUNL |
| A = 20 | Nucl. Phys. A636, 247 (1998) | TUNL*** |
* Co-authored with G. M. Hale, Los Alamos National
Laboratory
** Professor Fay Ajzenberg-Selove, University
of Pennsylvania
*** Co-authored with S. Raman, Oak Ridge National
Laboratory
Since the last NSDD/IAEA meeting in 1996, a review of the A = 20 nuclides, in collaboration with S. Raman of Oak Ridge National Laboratory, was completed and published as noted above. Evaluations for A = 5, (in collaboration with G.M. Hale of Los Alamos National Laboratory) and A = 6 were completed. A preliminary version was issued for A = 5 in Feb 1998. Release of A = 6 is planned for late 1998 in collaboration with H.M. Hoffman of the Universität Erlangen-Nürnberg. An evaluation for A = 7 is in progress. An "Energy Levels of Light Nuclei, A = 5 - 7" review is planned for submission to Nuclear Physics A in 1999.
II. ENSDF
ENSDF files which consist of adopted levels, decay data and reaction data are presently being prepared at TUNL by J.H. Kelley. The A = 3, 4, 16 and 17 ENSDF files have been updated to include data from the past TUNL reviews, and a file that reflects the most recent TUNL publication for A = 20 has been accepted. An ENSDF file which reflects information from the A = 5 preprint has been prepared, and a file for A = 6 is expected to come shortly after the release of the A = 6 preprint.
III. World Wide Web Services
TUNL continues to develop new WWW services for the nuclear science and applications communities. During the past year C.M. Cheves implemented a new design that emphasizes convenient access to individual A = 3 - 20 nuclides as well as to categories of information. The most recent evaluations (modified versions of "Energy Levels of Light Nuclei" publications) are available in pdf for A = 3, 5 - 10, 16 - 20. Energy Level Diagrams are provided for A = 4 - 20 nuclei. A new feature has been added which provides descriptions of important research published since the last full evaluation. References are divided into categories of level information, reaction information, decay information, and other properties, with experimental and theoretical subdivisions for each. These "Update lists" are currently online for A = 6 nuclei; lists for other nuclei are being prepared. This item represents the beginning of a new initiative by the TUNL group to provide to the nuclear community via our WWW page a continuously updated guide to important new work that has appeared in the literature since the most recent published review for each nuclide.
IV. Related Activities
TUNL makes extensive use of the Nuclear Science References services at NNDC. It supplements these resources by its own continued scanning of the literature, compiling bibliographical listings for relevant A = 3 - 20 experimental and theoretical work, utilizing the resources of the Triangle Area libraries, Monthly Updates from NNDC, Current Contents on Diskette with Abstracts, and Physics Abstracts.