The LA150N Library

Released: 1996-07-25

This 150-MeV neutron library designated LA150N was released in July 2000 and updated in May 2002. There are data tables for 42 isotopes in the library. Forty-one are based on T-16 work and extend to 150 MeV. These are all ENDF/B-VI Release 6 evaluations, with the exception of Si-28, Nb-93, Bi-209, Pb-208, and the Hg isotopes. These exceptions were either not submitted for ENDF/B-VI Release 6, or have undergone minor modifications since then. The 42nd isotope is Be-9, which extends to 100 MeV and is based on work performed in T-2.

The modification in May 2002 update was made to Pb-208 to correct a small error in the original release. The ZAID for Pb-208 has been changed from 82208.24c to 82208.25c to differentiate from the earlier version.

The isotopes and ZAIDs on LA150N are as follows:

(all ZAIDs end in .24c except for Pb-208)

Isotope	ZAID
H-1	1001.24c
H-2	1002.24c
C-nat	6000.24c
N-14	7014.24c
O-16	8016.24c
Al-27	13027.24c
Si-28	14028.24c
Si-29	14029.24c
Si-30	14030.24c
P-31	15031.24c
Ca-nat	20000.24c
Cr-50	24050.24c
Cr-52	24052.24c
Cr-53	24053.24c
Cr-54	24054.24c
Fe-54	26054.24c
Fe-56	26056.24c
Fe-57	26057.24c
Ni-58	28058.24c
Ni-60	28060.24c
Ni-61	28061.24c
Ni-62	28062.24c
Ni-64	28064.24c
Cu-63	29063.24c
Cu-65	29065.24c
Nb-93	41093.24c
W-182	74182.24c
W-183	74183.24c
W-184	74184.24c
W-186	74186.24c
Hg-196	80196.24c
Hg-198	80198.24c
Hg-199	80199.24c
Hg-200	80200.24c
Hg-201	80201.24c
Hg-202	80202.24c
Hg-204	80204.24c
Pb-206	82206.24c
Pb-207	82207.24c
Pb-208	82208.25c
Bi-209	83209.24c

Documentation

1. "APT Neutron Library for MCNP - Version 1," Little, R.C., (1997), LA-UR-98-838
2. "New High-Energy Evaluated Nuclear Data Libraries for the Accelerator Production of Tritium Program (U)," Chadwick, Mark B., Frankle, Stephanie C., Little, Robert C., and Young, Phillip G. LA-UR-08-7576