This technical report details a process by which ion exchange was used for separation of rare earth metals in a highly pure form. Two techniques for resolving mixtures are described: ion-exchange elution chromatography and ion-exchange displacement chromatography.

Technical report. From Introduction : "The nuclear volume dependent isotope shift of optical spectral lines has long been a very useful means for studying the changes in the nuclear size or shape for different isotopes of heavy elements."

From Abstract : "The V50/V51 ratios of vanadium from the ascidians, Ciona intestinalis and Ascidia ceratodes were measured, on an absolute basis, by comparison with a reference using a CEC Model 21-220 180° mass spectrometer."

This report discusses Lauricella's hypergeometric function F[subscript]D. The report discusses the function R of n variables, special values of parameters and variables, relations between associated functions, differential relations, Euler-Poisson equations, integral representations, and elliptic integrals.

From Abstract : "A new method for the solution of experimental photonuclear yield functions for cross sections is presented. ... The resulting cross sections are compared to the assumed cross sections used to derive the trial yield function."

Technical report. From Abstract : "Paramagnetic susceptibilities of samarium structure alloys in the systems La-Gd, Nd-Y, Nd-Tm, and Ce-Y were measured from 4.2 - 300°K to determine what effect the formation of this structure has on the magnetic properties of the alloys. Susceptibility maxima were observed in the Nd-Y and Nd-Tm alloys, at 34.5 and 28.5°K, respectively. Slope changes were observed in the curve of 1/x versus T for the La-Gd alloy at 155 and 130°K, and the susceptibility of this alloy remained temperature-independent from 130-7°K. A rather poorly defined region of constant susceptibility was also observed or the Ce-Y alloy, from 26-37°K. Above these transition temperatures, the alloys obeyed the Curie-Weiss law, the susceptibilities of the La-Gd and Ce-Y samples indicating the possibility of electron transfer occurring in these cases."

From introduction: "The basic interactions which give rise to the interesting magnetic properties of dilute alloys, such as cobalt in palladium, have received a great deal of attention both theoretically and experimentally. This problem has many facets which are peculiarly interrelated. For example, there is the problem of Curie points of the order of magnitude of 10°K for concentrations of 'magnetic' ions of 0.1%. It has been proposed that this problem involves virtual d-states (Friedel) which permit one to understand much of what is observed."

Technical report. From Abstract : "Magnetic moment measurements have been made on single crystals of terbium (hcp) with fields of 50 to 18,000 oe applied along the <1120> (a-axis), <1010> (b-axis), and <0001> (c-axis) directions. The temperature range covered was 1.4 to 500°K."

From Abstract : "Phenomenal magnetostriction has been observed in Dy and Ho single crystals. ... [The} magnetostriction curve showed three slightly developed knees which agree well with the knees observed in the magnetization data for Ho previously reported."

From abstract: "The hydrides of group VB an VB elements, except CH4 and NH3, have been prepared and, except for PbH4 and BiH3, their mass spectra studied. Fragmentation patterns and appearance potentials of the positive ions from these hydrides are reported. The ions have been tested for excess kinetic energy and this energy was found to be negligible. The average M-H bond energies and the ΔHf° obtained from appearance potential data agree well with values obtained by other methods. Evidence is cited for the existence of distibine."

From abstract: "The mass spectra of the α-amino acids have been obtained in a mass spectrometer equipped with a heated crucible ion source. Correlations of these data have been made with the molecular formulae of the ion fragments, and mechanisms leading to these fragments are proposed. Comparisons of these data have been made with the mass spectra of the ethyl esters of the amino acids and with other carboxylic acids and their esters."

From Abstract : "The mass spectrum of leucine-dn, prepared by the reaction of pyridoxal with excess leucine in D2O medium, has been established using the crucible source techniques. ... The reaction can be used for the selective α, β-deuteration of amino acids other than leucine.

Technical report. From Abstract : "A step phenomenon in the nuclidic mass excess surface associated with magic numbers N, Z = 8 and 20 is shown to exist, whereas only breaks occur at higher magic numbers. Excited states are included which reveals possible smooth trends within Shell-Model subshells."

From abstract: "Over-all mass transfer coefficients were determined by considering the operation of the pulse column to be a stage-wise process. The area for mass transfer was obtained by direct photographic measurements...The mass transfer coefficient was found to increase when the interfacial tension was reduced..."

Technical report. From Abstract : "A number of imaging furnace systems and sources are discussed with emphasis on the carbon arc image furnace. Several potential applications of the carbon arc image furnace in high temperature research are described and a new method of heat capacity determination is discussed."

From abstract: "The Hall mobilities of germanium single crystals were measured with a microwave frequence of 9000 Mc/sec over the temperature range 30°K to 300°K. A rectangular sample occupied the central part of the wall of a rectangular cavity, which was doubly generate in the TE101 mode and in the TE011 mode at a single resonance microwave frequency. The external magnetic field and microwave field associated with one of the two modes gave rise to the other mode of oscillation, owing to excitation by the microwave Hall field. The theoretical analysis was verified by measurements on an n-type sample having a room temperature resistivity of 0.40 ohm cm. The measured Hall mobility at microwave frequencies (with a size correction) was compared with the D.C. Hall mobility between 30°K to 300°K. The maximum discrepancy was 15%. The estimated experimental error in the microwave measurement was 16%. The magnetic field dependence of the microwave Hall mobility in a p-type sample, having a room temperature resistivity of a 0.77 ohm cm, was in qualitative agreement with the D.C. results obtained by Willardson et al."

From introductory paragraph: "A study of the ionization efficiency of the positive ions derived from chromyl fluoride and chromyl chloride as a function of the electron energy has been reported."

This technical report discusses an infrared study of AlH3-2N(CH3)3 while the compound was in its gas phase. This investigation was then extended to include the Raman spectrum observed in liquid trimethylamine.

Technical report. From Abstract : "Reaction of NbBr5 and niobium metal in a sealed tube under a temperature gradient from 410° to 350° gave NbBr4 in good yields. However, an increase in the higher temperature from 410° to 450° was sufficient to eliminate NbBr4 as a product and cause deposition of a lower bromide."

From Abstract : "A proposed constitutional diagram was developed from equilibrium data obtained for the niobium-tin binary alloy system. ... Alloying Nb3Sn with Nb3Al appears to raise the zero field superconducting transformation temperature of Nb3Sn slightly."

From Introduction : "In this paper we describe a choice of normal elliptic integrals which appears to be very well suited for use in integral tables as well as for numerical work."

From introduction: "A nuclear quadrupole interaction may occur simultaneously in conjunction with an anisotropic magnetic shift in a variety of solids. The non-cubic pure metals, in particular the hexagonal close-packed ones, afford a considerable number of examples, some which have already been studied. Among the latter may be listed Ga, In, and Te, and the list of possibilities must include Ti, Zr, Hf, Lu, Sc, and La, and perhaps others. Nuclear magnetic resonances in intermetallic compounds may also be expected to exhibit these combined effects. The cubic Laves phase compounds of the MgCu2 type have provided a number of examples, principally involving Al[^]27 nucleus. transition metal borides and beryllides, as well as other hexagonal and tetragonal intermetallics may also be included in this category. Finally, the nuclear magnetic resonance of the halogen nuclei in the paramagnetic chlorides, bromides, and iodides of transition metals will in general reflect the presence of both types of interaction. In the following section the theory for these combined effects is considered in some detail..."

Technical report. From Abstract : "Thermal, metallographic, and vapor pressure data were obtained to establish the phase boundaries and the standard free energy, enthalpy, and entropy of formation for the compounds in the yttrium-zinc system."

From abstract: "The nuclide Be7 has been produced by photoactivation of Be9, B and C12 using the bremsstrahlung beam of an electron synchrotron operated at 45 Mev. Integrated cross sections for the formation of Be7 have been estimated by comparison with the Ta181([gamma],n)Ta180m reaction. The reaction C12([gamma],2p3n)Be7 has also been observed in irradiations at 30, 35 and 40 Mev maximum energy. Its yield has been compared with that of the C12([gamma],n) reaction at 45 Mev. The reaction A127([gamma],2p3n)Na22 was observed at 45 Mev."