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Preliminary evaluation of neutron capture cross sections for /sup 144/Sm, /sup 145/Sm and /sup 145/Pm
We have made preliminary neutron-capture cross-section calculations of the Hauser-Feshbach type for the isotopes /sup 144/Sm, /sup 145/Sm, and /sup 145/Pm to investigate the production of radioactive /sup 145/Pm by neutron capture on the stable isotope /sup 144/Sm. The calculations were made for incident neutron energies from 2.5 MeV to about 1/sup -4/ or 10/sup -5/ MeV, wherever the first unbound resonance was estimated to occur in each case. At that energy, the calculated value was reduced by a somewhat arbitrary factor, and the excitation function extended down to thermal energy using a (E/sub n/)/sup -1/2/ energy dependence. Since very large uncertainties are associated with the position and magnitude of the first unbound resonance and the subsequent extrapolation back to thermal energy, the cross sections in this low-energy region should not be considered more accurate than +- a factor of 10. For incident neutron energies above each step, the calculations represent an average through the separated and overlapping resonance regions and may be accurate to better than +- a factor of 2. 18 refs., 7 figs., 5 tabs.
Date:
February 13, 1986
Creator:
Gardner, D. G. & Gardner, M. A.
Object Type:
Report
System:
The UNT Digital Library
Consolidation and shear failure leading to subsidence and settlement. Final report
Subsidence and settlement are phenomena that are much more destructive than generally thought. In shallow land burials they may lead to cracking of the overburden and eventual exposure and escape of waste material. The primary causes are consolidation and cave-ins. Laboratory studies performed at Los Alamos permit us to predict settlement caused by consolidation or natural compaction of the crushed tuff overburden. We have also investigated the shear failure characteristics of crushed tuff that may lead to subsidence. Examples of expected settlement and subsidence are calculated based on the known geotechnical characteristics of crushed tuff. The same thing is done for bentonite/tuff mixes because some field experiments were performed using this additive (bentonite) to reduce the hydraulic conductivity of the crushed tuff. Remedial actions, i.e., means to limit the amount of settlement, are discussed. We finally discuss our field experiment, which studies the influence of subsidence on layered systems in general and on biobarriers in particular. The share of the produced cavities is compared with cavities produced by idealized voids in an idealized environment. Study of root penetration at subsidence sites gives us an indication of the remaining degree of integrity. 30 refs., 24 figs., 19 tabs.
Date:
February 1, 1986
Creator:
Abeele, W.; Nyhan, J. W.; Hakonson, T. E.; Drennon, B. J.; Lopez, E. A.; Herrera, W. J. et al.
Object Type:
Report
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 93, No. 13, Ed. 1 Monday, February 24, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 24, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 92, No. 7, Ed. 1 Thursday, February 13, 1986
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 13, 1986
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 93, No. 12, Ed. 1 Saturday, February 22, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 22, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 93, No. 15, Ed. 1 Wednesday, February 26, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 26, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 93, No. 7, Ed. 1 Monday, February 17, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 17, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 92, No. 308, Ed. 1 Friday, February 7, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 7, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 92, No. 8, Ed. 1 Thursday, February 20, 1986
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 20, 1986
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 93, No. 14, Ed. 1 Tuesday, February 25, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 25, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 92, No. 305, Ed. 1 Tuesday, February 4, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 4, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 92, No. 309, Ed. 1 Saturday, February 8, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 8, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 93, No. 8, Ed. 1 Tuesday, February 18, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 18, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 92, No. 306, Ed. 1 Wednesday, February 5, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 5, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 92, No. 307, Ed. 1 Thursday, February 6, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 6, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 93, No. 17, Ed. 1 Friday, February 28, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 28, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 92, No. 9, Ed. 1 Thursday, February 27, 1986
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 27, 1986
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 93, No. 16, Ed. 1 Thursday, February 27, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 27, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Pacific Northwest Laboratory annual report for 1985 to the DOE Office of Energy Research. Part 1. Biomedical sciences
This report summarizes progress on OHER biomedical and health-effects research conducted at PNL in FY 1985 to develop information for a comprehensive understanding of the interaction of energy-related radiation and chemicals with man. Our continuing emphasis on decreasing the uncertainty of health-effects risk estimates to man from existing and/or developing energy-related technologies supports the DOE goal of increasing and diversifying national energy resources and decreasing risks to human health. The report is arranged to reflect the PNL research relative to OHER programmatic needs. The first section concerns evaluation of possible health effects among nuclear workers. The next two sections, which contain reports of health-effects research in biological systems, include health effects of radiation and health effects of chemical mixtures. The last section is related to medical applications of nuclear technology.
Date:
February 1, 1986
Creator:
Park, J. F.
Object Type:
Report
System:
The UNT Digital Library
Jewish Herald-Voice (Houston, Tex.), Vol. 77, No. 48, Ed. 1 Thursday, February 20, 1986
Weekly Jewish newspaper from Houston, Texas that includes local, state, and national news along with advertising.
Date:
February 20, 1986
Creator:
Samuels, Joseph W. & Samuels, Jeanne F.
Object Type:
Newspaper
System:
The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 100, No. 36, Ed. 1 Thursday, February 6, 1986
Weekly newspaper from De Leon, Texas that includes local, state, and national news along with advertising.
Date:
February 6, 1986
Creator:
Wilkerson, Gayle E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Big Lake Wildcat (Big Lake, Tex.), Vol. SIXTY-FIRST YEAR, No. 7, Ed. 1 Thursday, February 13, 1986
Weekly newspaper from Big Lake, Texas that includes local, state and national news along with advertising.
Date:
February 13, 1986
Creator:
Werst, David
Object Type:
Newspaper
System:
The Portal to Texas History
The Big Lake Wildcat (Big Lake, Tex.), Vol. SIXTY-FIRST YEAR, No. 9, Ed. 1 Thursday, February 27, 1986
Weekly newspaper from Big Lake, Texas that includes local, state and national news along with advertising.
Date:
February 27, 1986
Creator:
Werst, David
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 64, No. 29, Ed. 1 Monday, February 3, 1986
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 3, 1986
Creator:
Lobell, Joe
Object Type:
Newspaper
System:
The Gateway to Oklahoma History