75

Dec 9,1949 N15 RESONANCE FREQUENCY MEASUREMENT
J. R .Zacharias &J.M.B.Kellogg,Plus Rev. 57,570(1940)
N15(4750->4725KC)
Time Distance bet Markers Marker Resonance Dist Resonance Frequency
21Min 106.9mm #2 100.4mm 4726.4KC
68 107.7 1 104.7 4725.8
110 107.8 2 106.1 4725.3
153 218.0 1 111.0 4724.6
(50KC)
Compared at same frequency,
M(N15)has negative sign.
D2 (7175->7150KC)
Time Distance bet. Markers Marker Resonance Frequency
36min 54.0mm #1 31.6mm 7160.5KC
80 54.3 1 33.7 7159.6
124 54.0 1 35.5 7158.7
188 54.8 1 38.5 7157.5
0
V(N15)/V(D2)=4727.0/7160.8 1+-5.6x10-5/1+-5.4x10-5=0.660050(1+-5x10-5)
=0.66004+-000033
=0.66004+-0.00003
M(N15)=-(0.283032+-0.00004)MN