1 - IAEA Nuclear Data Services

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The configuration of the IBM 1800 data acquisition
and control system has been specified in detail. The
IBM 1800 computer will replace the IBM 1401 at the
beginning of 1968. The new computer system will allow
for on-line data acquisition and supervisory control
of the data collection process. Off-line problems can
be treated in time-sharing. Suitable interface equipment
is under construction.
2. Data Analysis and Programming
M.G. Cao, H. Horstmann, G. Nastri, H. Schmid
2.1. Reduction and Analysis of Fission and Scattering Cross
Section Data
A set of IBM 1401 programs for the reduction of fission
cross section data has been written f"22]. These programs
have been used to process data for
255
^U in the
energy ranges 0.15 ©V - 20 eV and 4 eV - 20 keV, and
for 240 Pu in the energy range 200 eV - 3 keV. 240 Pu
scattering cross section data in the range 20 eV -
1 keV have been processed.
A modified version of programs SMNF 032S (Saclay) for
shape analysis of fission cross section data has been
tested and used to determine resonance parameters of
235
^U in the energy range 6 - 150 eV.
The correlation coefficient between T„ and rv, and the
number of degrees of freedom in the Porter-Thomas
distributions have been calculated with IBM 1401 programs.
Program GACA (General Atomic) for area analysis of
capture cross section data has been modified to be
used for fission data.
A program in French PORTEAN (Saclay) for multiple
scattering and self-absorption corrections has been
rewritten in FORTRAN II, V3 for the IBM 7090 computer.