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Articles 1411 - 1429 of 1429

Full-Text Articles in Physics

Elastic Scattering Of Alpha Particles From 12C, Hsi-Chiu Liu Aug 1971

Elastic Scattering Of Alpha Particles From 12C, Hsi-Chiu Liu

Masters Theses

No abstract provided.


Small Angle Elastic Scattering Of 1.33 Mev Photons From Lead, Chwan-Kang Chiang Aug 1970

Small Angle Elastic Scattering Of 1.33 Mev Photons From Lead, Chwan-Kang Chiang

Masters Theses

No abstract provided.


Elastic Scattering Of 1.33 Mev Gamma Rays From Uranium, Joan Sue De Vries Apr 1970

Elastic Scattering Of 1.33 Mev Gamma Rays From Uranium, Joan Sue De Vries

Masters Theses

No abstract provided.


Excitation Of Hydrogen Atoms By Fast Protons, Edward Ellis Fitchard Jan 1970

Excitation Of Hydrogen Atoms By Fast Protons, Edward Ellis Fitchard

Physics Theses & Dissertations

In this thesis a theoretical study is made of excitation of hydrogenic atom by charged particles such as protons or electrons. The approximation to the cross section for an inelastic scattering process is obtained under the following radically simplifying assumptions. The projectile is represented in its initial and final state by plane waves. All distortions are neglected whether they originate in an inelastic process or an elastic deflections of the charged particle by the nucleus. The perturbation of the atomic orbits between which the projectile induces transitions is neglected. Nonrelativistic hydrogenic wave functions are used for the electronic states. In …


A Study Of Some Matrix Elements For The Four-Pion Decay Mode Of Neutral Bosons, George Victor Weller Dec 1969

A Study Of Some Matrix Elements For The Four-Pion Decay Mode Of Neutral Bosons, George Victor Weller

Masters Theses

No abstract provided.


The Elastic Scattering Of 1.33 Mev Gamma Rays From Tin, J. Edward Terdal Aug 1969

The Elastic Scattering Of 1.33 Mev Gamma Rays From Tin, J. Edward Terdal

Masters Theses

No abstract provided.


Inelastic Deuteron Scattering From 151Eu, Gerald Ralph Boss Aug 1969

Inelastic Deuteron Scattering From 151Eu, Gerald Ralph Boss

Masters Theses

No abstract provided.


Directional Correlation Of The 346-136 Kev Gamma-Gamma Cascade In Ta¹⁸¹, Robert Allan Wilson May 1969

Directional Correlation Of The 346-136 Kev Gamma-Gamma Cascade In Ta¹⁸¹, Robert Allan Wilson

Dissertations and Theses

The directional correlation of the 346-136 Kev gamma-gamma cascade in Ta¹⁸¹ was measured using the delayed coincidence method with a source of Hf¹⁸¹ in 27 N HF. The contributions to the composite delayed coincidence spectrum of the interfering 133-482 Kev and 133-346 Kev cascades were removed by the subtraction from this spectrum of appropriate 133-482 Kev pure delayed coincidence data. The extracted 346-136 Kev coincidence data then yielded the correlation coefficients A₂₂ = 0.190±0.011 and A₄₄. = -0.025±0.024 that are consistent with the established spin sequence 5/2(E2)9/2(M1 + E2)7/2 and with an admixture of 16.2%±1. 2% E2 radiation in the …


Fabrication Of Lithium Drifted Germanium Detectors Of Planar Structures, Khin M. Yin Apr 1969

Fabrication Of Lithium Drifted Germanium Detectors Of Planar Structures, Khin M. Yin

Masters Theses

No abstract provided.


Elastic Scattering Of 1.33 Mev Gamma Rays From Lead, William Jack Merrow Apr 1969

Elastic Scattering Of 1.33 Mev Gamma Rays From Lead, William Jack Merrow

Masters Theses

No abstract provided.


Elastic Scattering Of 1.33 Mev Gamma Rays From Uranium, David Rood Schwandt Apr 1969

Elastic Scattering Of 1.33 Mev Gamma Rays From Uranium, David Rood Schwandt

Masters Theses

No abstract provided.


Nuclear Spin, Hyperfine-Structure Separation, And Nuclear Magnetic Moment Of 18-Min Rb88, Paul A. Vanden Bout, Antoni Dymanus, Vernon J. Ehlers, Michael H. Prior Dec 1968

Nuclear Spin, Hyperfine-Structure Separation, And Nuclear Magnetic Moment Of 18-Min Rb88, Paul A. Vanden Bout, Antoni Dymanus, Vernon J. Ehlers, Michael H. Prior

University Faculty Publications and Creative Works

We have used the atomic-beam magnetic-resonance technique to measure the nuclear spin and the hyperfine-structure separation of 18-min Rb88 in the S122 electronic ground state. These results, combined with the Fermi-Segrè formula, yield the nuclear magnetic moment. Our results are: I=2, Δν=±1186.084(18) MHz, μI(uncorr)=±0.506(5) nm, μI(corr)=±0.508(5) nm. Present nuclear theory favors assignment of the negative sign to the value of the moment.


A Study Of The 16.7 Mev Level Of The 5He, James David George Aug 1968

A Study Of The 16.7 Mev Level Of The 5He, James David George

Masters Theses

No abstract provided.


Angular Correlation Study Of The 105 Kev Level In Gd155, John B. Gouvas Apr 1968

Angular Correlation Study Of The 105 Kev Level In Gd155, John B. Gouvas

Masters Theses

No abstract provided.


Nuclear Quadrupole Resonance Of Chlorine35 In Ammonium Chlorate And Ammonium Perchlorate, James Derwin King May 1963

Nuclear Quadrupole Resonance Of Chlorine35 In Ammonium Chlorate And Ammonium Perchlorate, James Derwin King

Theses

Nuclei which have a spin number, I, greater than 1/2 usually have an electric quadruple moment as well as a magnetic moment. The electric quadrupole moment describes the deviation from spherical symmetry of the positive charge over the nucleus. Interaction of this electric quadruple moment of the nucleus with an inhomogeneous (axially symmetric) electric field existing in molecules and crystals due to the surrounding charge cloud causes radio frequency resonances to exist. The resonant frequency is dependent on the nuclear quadruple moment as well as the shape and magnitude of the electric field existing at the nucleus due to the …


"The Effects Of Radioactive Fallout And Disarmament", Linus Carl Pauling May 1962

"The Effects Of Radioactive Fallout And Disarmament", Linus Carl Pauling

Special Collections: Oregon Public Speakers

There is a slight lapse of about 5 seconds where re-recorded overlap didn't quite cover. Recorded on a Berlout 33 stereo recorded using both tracks in one direction.


Development Of A Chemical Dosimeter Readout System, Everett Oscar Richey May 1962

Development Of A Chemical Dosimeter Readout System, Everett Oscar Richey

Theses

One of the various methods for measuring doses of ionizing radiation is the halogenated hydrocarbon dosimeter, also called the "chlorinated hydrocarbon," or the "water equivalent" dosimeter. These dosimeters have a range from ten to greater than 10^6 roentgens, and the response is essentially independent of energy, dose-rate, and temperature. This dosimeter consists, basically, of triply distilled water saturated with a halogenated hydrocarbon and an acidimetric indicator dye. Chemical chain reactions induces by radiation liberate acid and the amount of acid formed is directly proportional to the dose.


A Matrix Formulation Of The Least-Squares Method And Its Application To Nuclear Decay Schemes, Otto Harry Otteson Jan 1962

A Matrix Formulation Of The Least-Squares Method And Its Application To Nuclear Decay Schemes, Otto Harry Otteson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Many people call physics an ''exact science". This may be true depending on our definition of exact. Most dictionaries include as a definition of exact the words "strictly accurate". The average man thinks of an "exact science" as one which yields "strictly accurate'' results. Physics then is exact only to a degree.


"American Foreign Policy In The Atomic Age", Arthur Meier Schlesinger Jr. Dec 1960

"American Foreign Policy In The Atomic Age", Arthur Meier Schlesinger Jr.

Special Collections: Oregon Public Speakers

No abstract provided.