SCALE 6.0 NEWT/TRITON Update July 8, 2009 
Description
-----------
Updated October 1, 2009 to replace the previous NEWT/TRITON Update by adding Linux_i386
binary files and replacing TRITON6 for Linux_x86_64.

Updated October 29, 2009 to add qatable information for Linux/Mac installations.

NEWT was updated to address the following problems.

(1) I/O efficiency has been significantly improved in processing isotopic 
scattering data when creating macroscopic cross sections. Execution time for a 
very large problem was decreased by a factor of 5. 
(2) Fixed-field widths for cross section ID numbers were increased to allow 
large mixture numbers without field overflow.  
(3) The code was modified to correct a fatal error that occurs when reading and 
mixing scattering cross-sections if no scattering data are available.  
(4) Errors have been corrected in NEWT’s calculation of few-group homogenized 
cross-sections. 
(5) The geometry edit has been updated to remove the printing of asterisks 
(***) for some output fields.

Because TRITON and TRITON6 depend on NEWT, new executables were generated for 
both of these modules.

Installation and Use
--------------------
Windows: Download and run newt-update.exe to install the new
executable files to \scale6\bin. The test problems will be written to
\scale6\test. Updated Fortran source files are placed in \scale6\src\newt.
Prior to running the test cases, open the file \scale6\data\qatable in a text 
editor and change the version numbers (starting in column 65) of the following 
modules:

NEWT                            6.0.20
TRITON                          6.0.47
TRITON6                         6.0.33

Open the "Run SCALE6" shortcut and type the following command in the DOS
window: "updateqa". Change directories to \scale6\test and run the test
cases below. Compare output files with those in \scale6\output.
geomedit.inp
v5test.inp

----------------------
Unix: Updated Fortran source files, Linux 64-bit, Linux 32-bit and Darwin_8 (Mac) 32-bit 
executables, and test case input and output files for the user to verify that 
the update has been installed correctly are included.

Download newt-update.tar.gz. Unzip and untar in the directory above the head 
scale6 directory. The updated Fortran files are placed in scale6/src/, and updated binary 
files for are placed in Linux_x86_64/bin, Linux_i386/bin and Darwin_8/bin. The 
test problems geomedit.inp and v5test.inp are placed in scale6/test. Test 
problem output files for Linux_x86_64, Linux_i386 and Darwin_8 operating systems are placed 
in scale6/sysname/output, where sysname is the OS name.

If you are compiling the executables, execute the command "make install" from 
the head scale6 directory.

Prior to running the test cases, open the file qatable in scale6/sysname/data in a 
text editor and change the version numbers (starting in column 65) of the following modules.

NEWT                            6.0.20
TRITON                          6.0.48 (except for Darwin_8, which is 6.0.47)
TRITON6                         6.0.34