Interplanetary scintillation observations of compact radio sources in
the Perseus duster have been made at 102 MHz with the Large Phased Arr
ay of the Lebedev Physical Institute. The scintillating sources were o
bserved in NGC 1275, NGC 1265 and IC 310. Assuming that the spectrum o
f the scintillating radio source in the nucleus of NGC 1275 has a low-
frequency cutoff due to self-absorption of synchrotron radiation, we h
ave estimated H is similar to 10(-5) gauss, n(e) is similar to 10(-6)
cm-3, E(H) is similar to 10(47) erg, E(e) is similar to 10(55) erg in
the nucleus of NGC 1275, at a scale 0,03''. Relativistic particles can
escape from the nucleus of NGC 1275 because their energy is much grea
ter than the magnetic field energy. The 102 MHz map of the Perseus clu
ster has been obtained with a resolution 49' x 28'. No evidence was fo
und for the existence of the 1-degree cluster halo.