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AN ESTIMATE OF THE EFFECT OF NEUTRON-ENERGY SPECTRUM ON RADIATION DAMAGE OF STEEL
The postulate that the average number of lattice displacements is directly proportional to the available energy is carried one step further; it is assumed that damage to steel (particularly in regard to brittle fracture) is proportional to the number of lattice vacancies that occur. The model, although crude, permits estimation of the relative damage resulting from differences in neutron spectra. The results can be used as a rough method of correcting damage data for the effect of the neutron-energy spectrum. Radiation damage calculations for steel, relative to those for a fission spectrum, were made for neutron spectra that result from fission neutrons penetrating water or graphite. The results were plotted as a function of effective distance from the fission source. From this plot it is possible to make a conservative estimate of the correction factor to apply to damage data obtained with different neutron spectra. (auth)
Date:
July 27, 1962
Creator:
Claiborne, H.C.
Object Type:
Report
System:
The UNT Digital Library
EFFECTIVE CUTOFF ENERGIES FOR B, Cd, Gd, AND Sm FILTERS
Effective energy cutoffs have been calculated on an IBM7090 computer for Cd, Gd, Sm, and B filters as functions of filter geometry, the ratio of Maxwellian to epithermal flux (assumed to be 1/E), the lower energy limit of the 1/E flux, the energy corresponding to the Maxwellian most probable (modal) velocity and filter thickness. The geometrical configurations were spherical (which on the assumptions madc is equivalent to a beam flux case), cylindrical and slab. By the use of two or three different filters (Cd and Gd and perhaps Sm) it should be possible to detect resonances in the thermal to cutoff energy regions, in addition to measuring resonance integrals and thermial cross sections of unknown nuclides. (auth)
Date:
July 27, 1962
Creator:
Stoughton, R.W. & Halperin, J.
Object Type:
Report
System:
The UNT Digital Library
Temperature Coefficients of the Reactivity Measurement Facility
The temperature coefficient of the Reactivity Measurement Facility was found to be 49 plus or minus 1 mu k/ deg C (1 mu k = 10/sup -6/ DELTA k/k) in the range 15.4 to l7.8 deg C. The change in the net reactivity of a standard sample was --0.48 plus or minus 0.02, --0.66 plus or minus 0.03, and --0.78 plus or minus 0.02 mu k/ deg C in three measuring positions. These low values generally make temperature corrections insignificant. The above results are compared with previous determined values. This information developed in the RMF should be generally applicable to flux-trap-type reactors such as the Advanced Reactivity Measurement Facility (ARMF) and ARMF-ll, now under construction. RMF was dismantled in April 1962. (auth)
Date:
July 27, 1962
Creator:
Fast, E.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0223.0215]
Caption: "Oklahoma City police held a 7 1/2 foot Boa constrictor in custody for a while today. When officers spotted the serpent, it was wrapped around a man who was later booked as W. A. Chickanoka of Glasgow, Ky. The man was arguing with a clerk at a downtown hotel, trying to convince the clerk that he had a room reservation. Chickanoka, who also called himself "Wachickanoka, King of the Snakes," was booked for disorderly conduct. He posted $20 bond and was released. The snake king was wearing a tuxedo and stovepipe hat when he was arrested."
Date:
July 27, 1968
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0250.0020]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Mrs. Freddie Cudjoe, veteran Oklahoma City teacher, has been named an advisory specialist for students entering the city's combined junior and senior high schools."
Date:
July 27, 1968
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0316.0384]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "From wiener schnitzel to blueberry pancakes, any man can excel, believes Don Jan Duiker, a man who has been clattering about among the pots and pans ever since . . . "Well, even before I was a Cub Scout."
Date:
July 27, 1960
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0174]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Ken Crume, 12, son of Mr. and Mrs. Vernon Crume, 4704 Judy Drive, cheers as the Del City Panthers grab an 8-3 verdict over the Coronado Satellites in District 3 Midget action."
Date:
July 27, 1966
Creator:
Brown, Don
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0296.0071]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
July 27, 1964
Creator:
Wood, Tony
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0319.0089]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Present Eagletown post office isn't as fancy as the new one, local residents admit, but it's a whole lot handier."
Date:
July 27, 1961
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0308.0026]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Jay Dillman, drugstore manager, ponders trial which brought second acquittal on Sabbath-breaking charge."
Date:
July 27, 1961
Creator:
Matheson, Mandell
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0238.0276]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Outstanding DeMolay figure Doctor Lewellen Cooley III was the first Oklahoma youth to receive the DeMolay International Distinguished Service award."
Date:
July 27, 1963
Creator:
Foster, Ray
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0296.0072]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
July 27, 1964
Creator:
Wood, Tony
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0231.0409]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Already employed is Jesse Colbert jr., Okmulgee, who will graduate in Automotive Service Management at Oklahoma State tec., Okmulgee, in August."
Date:
July 27, 1966
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0223.0180]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Every Sunday since the turn of the century, Chicago's Maxwell Street has been the animated, raffish home of the "greatest open air market in the world."
Date:
July 27, 1969
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0366.0314]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Razed car damaged Saturday in a Midwest City butane explosion"
Date:
July 27, 1968
Creator:
Hill, Ron
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0234.0382]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Left to right, Paul Morgan, Jack Cooper, Demp Morgan, Ray Smith and Wesley Wins.lett, work on bleachers."
Date:
July 27, 1966
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0244.0388]
Photograph taken for a story in the Daily Oklahoman newspaper.
Date:
July 27, 1962
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0237.0118]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company. Caption: "B. L. Cook, treasurer Oklahoma Conference of Seventh-day Adventists."
Date:
July 27, 1962
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.1493]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
July 27, 1963
Creator:
Cobb, Dick
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.1494]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
July 27, 1963
Creator:
Cobb, Dick
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.1489]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
July 27, 1963
Creator:
Cobb, Dick
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0051.1495]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
July 27, 1963
Creator:
Cobb, Dick
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0092.0026]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Navy's recently retired top enlisted man said Friday the ease in regimentation in the Navy "is for the good."
Date:
July 27, 1967
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0094.0851]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Region Chief - Wayne F. Boan , a native of Pryor , manager in Tulsa for Standard & Poor's Corp., Financial publishing and investment advisory firm.."
Date:
July 27, 1969
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History