scholarly journals ELECTRONIC PARAMAGNETIC RESONANCE SPECTROGRAPH WITH FREQUENCY AND MAGNETIC FIELD MODULATION

1963 ◽  
Vol 19 (12) ◽  
pp. 816
Author(s):  
TUONG TAI-CHIAN
Keyword(s):  
Magnetic Field ◽  
Electronic Paramagnetic Resonance ◽  
Paramagnetic Resonance ◽  
Magnetic Field Modulation ◽  
Field Modulation

A DOUBLE MAGNETIC FIELD MODULATION PARAMAGNETIC RESONANCE SPECTROMETER

1956 ◽  
Vol 34 (7) ◽  
pp. 711-721 ◽  
Author(s):  
H. A. Buckmaster ◽  
H. E. D. Scovil
Keyword(s):  
Magnetic Field ◽  
Narrow Band ◽  
Signal To Noise Ratio ◽  
Resonant Cavity ◽  
High Sensitivity ◽  
Wide Band ◽  
Paramagnetic Resonance ◽  
Magnetic Field Modulation ◽  
Modulation Type ◽  
Field Modulation

A high sensitivity, wide or narrow band, double magnetic field modulation type paramagnetic resonance spectrometer operating at a wavelength of 1.25 cm. for use at liquid helium temperatures (4 °K.) is described. The spectrometer employs a transmission type, cylindrical resonant cavity excited in the H111 mode. The magnetic field is modulated simultaneously at 60 c.p.s. and 465 kc. A resonance from 10−11 mole of diphenyl trinitro phenyl hydrazyl has been observed with a signal-to-noise ratio of 2:1 at 290 °K. in wide band operation (8 kc.) indicating that a sensitivity of O(10−15) mole should be possible in narrow band operation (1 c.p.s.) at 4 °K. because of its inherent high stability.

On NMR spin imaging by magnetic field modulation

1980 ◽  
Vol 22 (3) ◽  
pp. 257-271 ◽  
Author(s):  
L. F. Feiner ◽  
P. R. Locher
Keyword(s):  
Magnetic Field ◽  
Magnetic Field Modulation ◽  
Field Modulation
Sign in / Sign up

Export Citation Format

Share Document