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US Nuclear Data Program Meeting 2001 Held at Brookhaven National Laboratory April 16-20, 2001 |
To NNDC
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US Nuclear Data Program Meeting 2001 Held at Brookhaven National Laboratory April 16-20, 2001 |
To NNDC
|
|---|
| Contributions | ||
| Nuclear Structure & Decay |
Nuclear Reaction | Data Dissemination |
|---|---|---|
| Working Group & Task Force Reports | ||
| High Spin TF | ||
| Center Reports | ||
| Argonne | Argonne | Brookhaven |
| Brookhaven | Brookhaven | Lawrence Berkeley |
| Idaho Falls | LANL T-16 | LANL T-16 |
| Lawrence Berkeley | NIST | NIST |
| McMaster | Oak Ridge | Oak Ridge |
| NIST | TUNL | TUNL |
| Oak Ridge | ||
| TUNL | ||
| Other Status Reports | ||
| ENSDF Codes (BNL) | ||
| XUNDL Status Report | ||
| Format Proposals & Other Submissions | ||
| ENSDF Formats (BNL) | ||
Abstract:
An investigation of appropriate methods to be used for representing large
errors in astrophysical reaction rates has been continued this year. A
manuscript on the results obtained from this study to date has been drafted
and is undergoing refinements. An experimental investigation of 6-7 MeV
production via the
reaction from a stopping target of the gas SF6 was completed. It was
determined that this is an excellent target material to use for gamma-ray
production purposes. Furthermore, when the gas cell and entrance window are
fabricated from aluminum, spurious neutron production is reduced to a minimum
for protons with energies smaller than 4 MeV. Use of these gamma rays for the
detection of sensitive nuclear weapons materials has been investigated further
and it was concluded that the approach - code named FIGARO - is quite resistant
to countermeasure techniques which might be attempted by terrorists to
avoid detection. Measurements of neutron activation cross sections from 16-20
MeV for reactions associated with the following elements were completed at
IRMM, Geel, Belgium, during January - February 2001: Cr, Cu, Mo, Se, Sr, Zn,
Zr, V, Tc, and Pb. Progress was made during the past year in the analysis of
these data and earlier data taken at IRMM during 1998-2000. Work continued on
a nuclear model parameter sensitivity study first undertaken last year, and a
journal article on the results of this work has been submitted for publication.
Finally, Argonne has begun a program of nuclear structure data evaluations.
Software used in this activity was acquired from NNDC-BNL and work has begun on
the evaluation of structure and decay data for selected mass A=143 nuclei.
Argonne has also agreed to act as a reviewer of some completed ENSDF evaluations
prepared by other researchers in the international network of nuclear structure
evaluators.
Full text: PostScript,
Portable Document Format.
