IFEG   20353
INSTITUTO DE FISICA ENRIQUE GAVIOLA
Unidad Ejecutora - UE
artículos
Título:
Short Recovery Time NMR Probe
Autor/es:
RAMIA M.E.; MARTÍN C.A.; JEANDREVIN S.
Revista:
ANNALS OF MAGNETIC RESONANCE
Editorial:
AUREMN
Referencias:
Lugar: Río de Janeiro; Año: 2010 p. 1 - 10
ISSN:
1519-8308
Resumen:
A NMR probe for low frequency work and short recovery time is presented in this work. The probe contains the tuning circuit, diode expanders and quarter wavelength networks to protect the receiver from both the amplifier noise and the coil ringing following the transmitter power pulse. It also possesses a coil damper which is activated by of non active components. The probe performance shows a recovery time of about of 15 micro seconds , a sensitive Q factor reduction and an increase of the signal to noise ratio of about 68% during the reception at a work frequency of 2 MHz.