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The Automatic Bias and Flux-Reset of a Magnetic Modulator
None
Date:
May 1, 1964
Creator:
Taylor, J. L.
System:
The UNT Digital Library
An Autoradiographic and Histologic Study of Spleen White Pulp Germinal Centers During Early Intervals of the Primary Immune Response
None
Date:
May 1, 1964
Creator:
Hanna, M. G., Jr.
System:
The UNT Digital Library
The Electrical, Magnetic, and Optical Properties of Some Complex Organic Systems
None
Date:
May 1, 1964
Creator:
Ilten, D. F.
System:
The UNT Digital Library
ELECTRON-SLOWING-DOWN SPECTRUM IN Cu OF BETA RAYS FROM Cu$sup 6$$sup 4$
The electron flux spectrum resulting from the slowing down of electrons from /sup 64/Cu uniformly distributed in Cu was measured from 0.1 ev to 37 kev for both a plane disk source and a black body cavity source. The cavity source consisted of a hollow Cu frustrum with walls infinitely thick for /sup 64/Cu beta rays. A matching thick cover allowed only electrons from inside the cavity to enter the Keplertron, a spherical electrostatic beta spectrometer. The cavity data agreed well from 1 kev to 37 kev with a simplified calculation of the Spencer-Fano theory. Below 1 kev, the experimental flux exceeded the calculated flux by as much as 35% at 30 ev. A stopping power derived from proton dath was used in the theory for electrons below 5.5 kev. A buildup of several orders of magnitude in the electron flux below 1 kev was observed. The disk data was lower than the cavity data at all energies above 1 kev, the former approaching the latter at higher energies. The beth spectrometer was calibrated for transmission and resolution from 1.5 ev to 3 kev using an isotropic electron gun and at 31.4 kev using the /sup 152/Sm Auger line. (auth)
Date:
May 1, 1964
Creator:
McConnell, W. J.; Hubbell, H. H., Jr. & Birkhoff, R. D.
System:
The UNT Digital Library
Lanthanide Boride Systems and Properties. Part I. Lanthanide-Boron-Carbon Systems. Part 2. Vaporization and Stabilities of Lanthanide Borides
None
Date:
May 1, 1964
Creator:
Smith, P. K.
System:
The UNT Digital Library
Photoproduction of Charged Pions From Deuterium Near Threshold
None
Date:
May 1, 1964
Creator:
Yoon, Taek-Soon
System:
The UNT Digital Library