Conventional pulse NMR uses the nuclear polarization due to the Boltzmann d
istribution, which is of the order of 10(-5) for protons at room temperatur
e in typical magnetic fields. About five orders of magnitude in sensitivity
can therefore be gained if polarization of the order of 100% is achieved b
y other means. We report the first detection of free induction decay signal
s of protons from a polarized cyclotron beam implanted into liquid D2O and
Br-2. Possible applications are discussed. (C) 1999 Elsevier Science B.V. A
ll rights reserved.