Directory: optical/
File:      optical.readme (July 15, 2002)
****************************************


                                   optical

              Structure and contents of the optical model segment
	           (provided by P. Young on July 15, 2002)
              ***************************************************
 


The optical directory of RIPL-2 contains the files required for preparing
inputs for optical model calculations and, in addition, one microscopic
optical model code. The directory is divided into three sub-directories, as
follows:
 
optical/
      optical.readme
      om-utility.readme
      om-utility.tgz
 
      om-data/
          om-alpha.readme
          om-alpha.tgz
          om-deformations.readme
          om-deformations.dat
          om-parameter.readme
          om-parameter-a.dat
          om-parameter-u.dat
          om-parameter-u.list
          totela-sys.readme
          totela-sys.tgz
 
      om-get/
          om-kd02.readme
          om-kd02.tgz
          om-retrieve.readme
          om-retrieve.tgz			

      om-microscopic/
          mom.readme
          mom.tgz
          mom-manual.ps
 
The om-utility codes are provided for creating convenient summaries of the
om-parameter-u(a).dat files and for adding or deleting potentials from the 
libraries.

The om-data directory contains the phenomenological OMP libraries and a
library of deformation parameters useful for, e.g., DWBA calculations. It
also contains a code for obtaining alpha-particle potentials in standard
format, using a built-in model and volume integrals. Finally, this 
directory contains a code system for calculating total, elastic, and
reaction cross sections and elastic angular distributions for neutron-
and proton-induced reactions from systematics.

The om-get directory contains a retrieval code and associated files that
can be used to calculate inputs for the SCAT2000 and ECIS96 optical model
codes from the phenomenological OMP libraries.  The code can also be used
to tabulate parameters as a function of incident energy. This directory also 
contains a code for providing neutron or proton optical model parameters at
any energy from the Koning-Delaroche global/local optical model potential. 

The om-microscopic directory contains a microscopic optical model code from
Bruyeres-le-Chatel, together with complete description of the contents and how
to use the code.