Theory of Operation
2021 Microchip Technology Inc.
DS50003057A-page 31
called C-Field to the resonance interrogation region. This deliberately shifts the
resonance frequency of the field dependent transitions away from the clock transition
frequency.
The complete spectrum of the 7610 CBT, showing all seven allowed Δm
F
= 0
transitions is shown in the following figure, as the RF frequency is swept across 400
kHz around 9192631770 Hz.
FIGURE 5-5:
Complete Spectrum of the 7610 CBT.
The complete 7610 CBT spectrum includes all seven allowed Δm = 0 magnetic dipole
transitions between the Zeeman sub levels of the two ground hyperfine states of
Cesium. With the exception of the central, or Clock transition, the frequencies of these
transitions all exhibit a linear dependence on external magnetic field. The separation
between the transitions is provided by the applied C-field and the frequency splitting is
termed the Zeeman frequency, in this case 46.4 kHz. The clock transition, that is
chosen for its relative insensitivity to applied field, exhibits only a small second order
Zeeman shift.
The clock transition is shown in greater detail in
FIGURE 5-6:
Zeeman Frequency, Clock Transition.
Summary of Contents for 4310B
Page 1: ...2021 Microchip Technology Inc Advance Information DS50003057A CSIII Model 4310B User s Guide...
Page 26: ...CSIII MODEL 4310B User s Guide DS50003057A page 26 2021 Microchip Technology Inc NOTES...
Page 38: ...CSIII Model 4310B User s Guide DS50003057A page 38 2021 Microchip Technology Inc NOTES...
Page 46: ...CSIII Model 4310B User s Guide DS50003057A page 46 2021 Microchip Technology Inc NOTES...
Page 48: ...CSIII Model 4310B User s Guide DS50003057A page 48 2021 Microchip Technology Inc NOTES...
