Still further, {HEAD ~ the spatial distribution} of the magnetic field due to {TAIL ~ the eddy current} caused by ON and OFF of the gradient magnetic field is measured in a plurality of times in an equal time interval along with lapse of time 
due to
Still further , { HEAD ~ the spatial distribution } of the magnetic field due to { TAIL ~ the eddy current } caused by ON and OFF of the gradient magnetic field is measured in a plurality of times in an equal time interval along with lapse of time
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH