Physics & Astronomy ETDs

Publication Date

5-31-1967

Abstract

In nuclear quadrupole resonance (NQR) it is desirable to better examine the magnitude of the resonance signals. This thesis describes the construction and testing of spectrometer control circuits which enable one to better examine a single resonance signal to the near exclusion of extraneous resonance side band responses and circuit noise in the NQR detection apparatus. Added to the basic spectrometer circuit is a step-wise varying quench rate control. For each adjustment of this control other control units are activated to keep the chosen NQR signal fixed in position and in magnitude within the spectrometer's span of detected radio frequencies. The output of the spectrometer may then be summed and averaged by appropriate recording devices. Extraneous signals due to resonance side band responses and circuit noise will have varying positions and magnitudes for the varying quench rates and would consequently average out to have negligible magnitudes, while the chosen NQR signal would remain at the uniform magnitude at which it was detected for each of the quench rate adjustments.

Degree Name

Physics

Level of Degree

Masters

Department Name

Physics & Astronomy

First Committee Member (Chair)

Christopher Dean

Second Committee Member

Derek B. Swinson

Third Committee Member

Howard Carnes Bryant

Fourth Committee Member

John Lee Howarth

Language

English

Document Type

Thesis

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