
%0 Journal Article
%A Caldwell, RA 
%A Hacobian, S 
%T Theory of super-regenerative detection of N.Q.R.
%J Australian Journal of Chemistry
%D 1970/07/01
%V 23
%N 7
%P 1321-1331
%K 
%R https://doi.org/10.1071/CH9701321
%U https://www.publish.csiro.au/paper/CH9701321 
%X Signal intensities of the 35Cl nuclear quadrupole transition in para-dichlorobenzene, obtained using a frequency modulated superregenerative spectrometer, are investigated as a function of quenching frequency. The quenching voltage is applied in the form of pulses of variable on (ton) and off (toff) times. A method is provided for the calculation of (Vs2/Vn2)½ which appears in the detection equation     &#916;A = aV0In(1 + Vs2/Vn2)½  By applying the theory of nuclear induction to a series of pulses, such as those of a super-regenerative oscillator, it is possible to explain the observed behaviour of signal intensities with operational characteristics and solid state relaxation parameters. 
