T1 measurement by saturation recovery

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In the Saturation Recovery experiment, the time it takes for the spins to recover from a saturated state is measured. If one has a probehead where the use of gradients is possible, this is quite easy:
In the Saturation Recovery experiment, the time it takes for the spins to recover from a saturated state is measured. If one has a probehead where the use of gradients is possible, this is quite easy:
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<pulse title="saturation recovery pulse sequence for T1 measurement">
+
<pulse title="saturation recovery pulse sequence for T1 measurement using pulsed field gradient">
anchors: @a @a2 @b @c @d
anchors: @a @a2 @b @c @d
disp: 2@a 8@a2 4@b 2@c 8@d
disp: 2@a 8@a2 4@b 2@c 8@d

Revision as of 06:02, 6 February 2009

Saturation Recovery

In the Saturation Recovery experiment, the time it takes for the spins to recover from a saturated state is measured. If one has a probehead where the use of gradients is possible, this is quite easy:

saturation recovery pulse sequence for T1 measurement using pulsed field gradient

However without the possibility to use gradients, a set of several pulses in a short timespan (often with decreasing delays between the pulses in this pulsetrain) can be used to saturate the spin system:

Pulse sequence image