Phantom no: 543, THI HF, background
Date: 2000 October 2. Time: 18:50
Slice thickness: 3.01 cm +/-0.02cm
Temperature: 23.7 degree Celsius +/-0.1C
Sound speed measurement
Sampling frequency: 1000.00 Ms/sec +/-0.01%
frequency, time differens, sound speed,  +/- 2*SD
 MHz      microseconds       m/sec       m/sec
 3.0,    -0.690,            1546.0,       0.5
 4.0,    -0.690,            1546.0,       0.5
 5.0,    -0.690,            1546.0,       0.5
 6.0,    -0.690,            1546.0,       0.5
 7.0,    -0.700,            1546.8,       0.5
 8.0,    -0.700,            1546.8,       0.5
 9.0,    -0.700,            1546.8,       0.5
10.0,    -0.700,            1546.8,       0.5
Mean velocity:   1546.4 m/sec
Calculated velocity at 23C : 1545 m/sec
Measurement of attenuation:
Sampling frequency: 100.00 Ms/sec +/-0.01%
Density:         1055.0 Kg/m3
Impedance:       1.631 * 10E6 Kg/m2*sec
Reflection loss: -0.02 dB
trans.frq.,energy,rec.frq.,energy,transm.loss,att/dist,att/dist*frq,+/-2*SD
   MHz        dB     MHz       dB      dB     dB/cm    dB/cm*MHz  dB/cm*MHz
  2.98,    64.25,   2.98,   58.53,   5.72     1.895,    0.636,     0.035
  4.00,    66.01,   4.00,   58.56,   7.46     2.471,    0.617,     0.026
  4.98,    70.11,   4.98,   61.04,   9.07     3.007,    0.604,     0.022
  6.01,    70.89,   6.01,   60.87,  10.02     3.323,    0.553,     0.018
  6.98,    72.26,   6.98,   60.31,  11.95     3.965,    0.568,     0.016
  8.01,    73.36,   8.01,   59.91,  13.45     4.463,    0.557,     0.014
  8.98,    73.66,   8.98,   59.04,  14.62     4.850,    0.540,     0.013
 10.01,    72.24,  10.01,   56.11,  16.12     5.351,    0.535,     0.012
 10.99,    72.34,  10.99,   55.37,  16.97     5.632,    0.513,     0.011
 12.01,    68.87,  12.01,   50.61,  18.26     6.060,    0.504,     0.010
 12.99,    69.13,  12.99,   49.49,  19.64     6.519,    0.502,     0.010
 14.01,    67.89,  14.01,   46.47,  21.42     7.111,    0.507,     0.010