ENDF/B-VI, Release 8
                             --------------------
 The fourteenth distribution of the ENDF/B-VI data tapes was released in 
 October 2001. The distribution includes eight new tapes for the neutron induced
 sublibrary, as well as three new sub-libraries comprising an Atomic Relaxation
 data library, an Electro-Atomic Interaction data library and a Photo-Atomic Interaction 
 data library.
 The neutron induced sub-library contains eight completely new evaluations, as well as 
 updates of secondary gamma spectra for 33 other evaluations, 15 fission product evaluations 
 (new and updated), 12 minor revisions and the conversion of 3 tin isotopes from ENDF/B-V. 
 Please note that all other sublibraries remain unchanged from Release 7 and are shown at 
 the bottom of the page.
 Summary of ENDF/B-VI, Release 8 files.

 Tape 156, ENDF/B-VI Sublibrary 10, # recs = 126,063 (10,211,103 bytes)

 MAT #   Mod    Contents

   425    2     Secondary gamma spectra
   725    1     Secondary gamma spectra
   925    1     Secondary gamma spectra
  1125    1     Secondary gamma spectra
  1200    1     Secondary gamma spectra
  1325    1     Secondary gamma spectra
  1600    1     Secondary gamma spectra
  1625    1     Secondary gamma spectra
  1900    1     Secondary gamma spectra
  2000    1     Secondary gamma spectra
  2125    1     Secondary gamma spectra
  2200    1     Secondary gamma spectra
  2300    1     Secondary gamma spectra

 Tape 157, ENDF/B-VI Sublibrary 10, # recs = 97,744 (7,917,264 bytes)

 MAT #   Mod    Contents

  2425    1     Secondary gamma spectra
  2431    1     Secondary gamma spectra
  2434    1     Secondary gamma spectra
  2437    1     Secondary gamma spectra
 
 Tape 158, ENDF/B-VI Sublibrary 10, # recs = 109,920 (8,903,520 bytes)

 MAT #   Mod    Contents

  2525    1     Secondary gamma spectra
  2625    1     Secondary gamma spectra
  2631    1     Secondary gamma spectra
  2634    1     Secondary gamma spectra
  2637    1     Secondary gamma spectra

 Tape 159, ENDF/B-VI Sublibrary 10, # recs = 123,600 (10,011,600 bytes)

 MAT #   Mod    Contents

  2825    1     Secondary gamma spectra
  2831    1     Secondary gamma spectra
  2834    1     Secondary gamma spectra
  2837    1     Secondary gamma spectra
  2843    1     Secondary gamma spectra

 Tape 160, ENDF/B-VI Sublibrary 10, # recs = 128,614 (10,417,734 bytes)

 MAT #   Mod    Contents

  2925    1     Secondary gamma spectra
  2931    1     Secondary gamma spectra
  7431    1     Secondary gamma spectra
  7434    1     Secondary gamma spectra
  7437    1     Secondary gamma spectra
  7443    1     Secondary gamma spectra

 Tape 161, ENDF/B-VI Sublibrary 10, # recs = 36,368 (2,945,808 bytes)

 MAT #   Mod    Contents

  4234    1     Fission product
  4325    1     Fission product
  4440    3     Fission product
  4525    1     Fission product
  4634    3     Fission product
  4731    1     Fission product
  5446    1     Fission product
  6028    3     Fission product
  6034    3     Fission product
  6234    2     Fission product
  6243    3     Fission product
  6246    3     Fission product
  6249    3     Fission product
  6434    1     Fission product
  6440    1     Fission product

 Tape 162, ENDF/B-VI Sublibrary 10, # recs = 48,806 (3,953,286 bytes)

 MAT #   Mod    Contents

   125    5     Minor revision
   228    1     Minor revision
   528    2     Minor revision
  1428    3     Minor revision
  3731    1     Minor revision
  4025    1     Minor revision
  4028    1     Minor revision
  4031    1     Minor revision
  4037    1     Minor revision
  4043    1     Minor revision
  5049    2     Converted from ENDF/B-V 
  5055    2     Converted from ENDF/B-V 
  5061    2     Converted from ENDF/B-V 
  6425    2     Minor revision
  6431    2     Minor revision

 Tape 163, ENDF/B-VI Sublibrary 10, # recs = 84,193 (6,819,633 bytes)

 MAT #   Mod    Contents

   825    3     New evaluation
  1725    1     New evaluation
  1731    1     New evaluation
  5125    1     New evaluation
  5131    1     New evaluation
  9134    1     New evaluation
  9219    2     New evaluation
  9343	  1     New evaluation

 Tape 709, ENDF/B-VI Sublibrary 6, # recs = 107,781 (8,730,261 bytes)

 MAT #      Mod    Contents

 100-9920    1     EADL Library

 Tape 710, ENDF/B-VI Sublibrary 113, # recs = 303,125 (24,553,125 bytes)

 MAT #      Mod    Contents

 100-9920    1     EEDL Library

 Tape 711, ENDF/B-VI Sublibrary 3, # recs = 286,230 (23,184,630 bytes)

 MAT #      Mod    Contents

 100-9920    1     EPDL Library

 The complete ENDF/B-VI Archive Tape for the Incident Neutron Sublibrary is available (tape_n_all.eb68) 108,284,120 bytes 
 or in a gzipped file (tape_n_all.eb68.gz) 25,562,211 bytes 
(this includes the relevant parts of tape 100 (B-VI.4 part of tape superseded), tapes 139-144 (B-VI.5 part of tape superseded), tapes 145-153 (B-VI.6), tapes 154-155 (B-VI.7) and tapes 156-163 (B-VI.8) giving only the latest evaluation for each isotope).
 Or an alternative archive (in tar format then gzipped) (archive_n_all.eb68.tar.gz) 25,592,799 bytes
 is available which contains the complete ENDF/B-VI.8 library (as one file per isotope).
 NOTE: ALL of the above release 8 tapes (156-163 and 709-711) contain the new sequencing style, 
        i.e. placing 99999 at the end of each section.
 ----------------------------------------------------------------------------------------- 
 The previous tape releases have been loaded using the tape numbers given below and are 
 also available for download.  Please note that none of these have changed since release 7 and
 many have not changed since the original release of the ENDF/B-VI file, i.e. for most users there
 is probably no need to download these again.
 Thermal Neutron Scattering Sublibrary (tape 101) 10,989,918 bytes 
Neutron Induced Activation Sublibrary (tape 102) 1,877,823 bytes
Photon Interaction Sublibrary (tape 104) 18,317,340 bytes
Neutron Induced Dosimetry Sublibrary (tape 105) 1,277,289 bytes
Radioactive Decay Data Sublibrary (tape 106) 28,436,103 bytes
Neutron Induced Fission Product Yields Sublibrary (tape 107) 6,916,833 bytes
Spontaneous Fission Product Yield Sublibrary (tape 108) 1,219,898 bytes
Incident Proton Sublibrary (release 7) (tapes 300-309) 42,270,903 bytes or the gzipped file 11,073,923 bytes
Incident Deuteron Sublibrary (release 1) (tape 320) 153,090 bytes
Incident Deuteron Sublibrary (release 5) (tape 321) 81,243 bytes
Incident Triton Sublibrary (release 1) (tape 340) 37,098 bytes
 A summary file for all the tapes in the ENDF/B-VI distribution is available here
 and another showing the details for materials is available here 
Please note: the numbering of the tapes shown in these files relates to the numbers originally allocated by Brookhaven National Laboratory (the issuing centre for the ENDF/B library). These are not always consistent with those used at the NEA.

Last updated: 29 October 2001
NEA Data Bank, Paris