Phantom no: 532, model 430, modified

 

Date: 2000 February 13. Time: 14:16

Slice thickness: 3.01 cm +/-0.02cm

Temperature: 20.0 degree Celsius +/-0.1øC

 

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,    -0.640,            1530.9,       0.5

 4.0,    -0.650,            1531.7,       0.5

 5.0,    -0.650,            1531.7,       0.5

 6.0,    -0.650,            1531.7,       0.5

 7.0,    -0.650,            1531.7,       0.5

 8.0,    -0.650,            1531.7,       0.5

 9.0,    -0.650,            1531.7,       0.5

10.0,    -0.650,            1531.7,       0.5

Mean velocity:   1531.7 m/sec

Calculated velocity at 23øC : 1540 m/sec

 

Measurement of attenuation:

Sampling frequency: 100.00 Ms/sec +/-0.01%

Density:         1050.0 Kg/m3

Impedance:       1.608 * 10E6 Kg/m2*sec

Reflection loss: -0.01 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

  3.08,    70.00,   3.08,   64.69,   5.31     1.759,    0.572,     0.033

  4.15,    73.80,   4.15,   67.52,   6.28     2.080,    0.501,     0.024

  5.13,    73.91,   5.13,   66.80,   7.12     2.359,    0.460,     0.019

  6.15,    70.71,   6.15,   62.70,   8.00     2.654,    0.431,     0.016

  7.13,    65.83,   7.13,   57.03,   8.80     2.920,    0.410,     0.014

  8.06,    61.01,   8.01,   51.37,   9.64     3.198,    0.397,     0.012

  9.03,    55.43,   9.03,   44.85,  10.59     3.513,    0.389,     0.011

 10.01,    49.92,   9.96,   38.49,  11.43     3.792,    0.379,     0.010