  A new approach to the technique of scanning by wires is developed. Novelty of
the method is that the wire heating quantity is used as a source of information
about the number of interacting particles. To increase the accuracy and
sensitivity of measurements the wire heating measurement is regenerated as a
change of wire natural oscillations frequency. By the rigid fixing of the wire
ends on the base an unprecedented sensitivity of the frequency to the
temperature and to the corresponding flux of colliding particles. The range of
used frequencies (tens of kHz) and speed of processes of heat transfer limit
the speed characteristics of proposed scanning method, however, the high
sensitivity make it a perspective one for investigation of beam halo and weak
beam scanning. Traditional beam profile monitors generally focus on the beam
core and loose sensitivity in the halo region where a large dynamic range of
detection is necessary. The scanning by a vibrating wire can be also
successfully used in profiling and detecting of neutron and photon beams.
