Phantom no: 531, model 453

 

Date: 2000 January 24. Time: 16:12

Slice thickness: 3.01 cm +/-0.02cm

Temperature: 20.3 degree Celsius +/-0.1ÝC

 

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,††† -0.120,††††††††††† 1492.3,†††††† 0.3

4.0,††† -0.360,††††††††††† 1510.3,†††††† 0.4

5.0,††† -0.130,††††††††††† 1493.1,†††††† 0.3

6.0,††† -0.140,††††††††††† 1493.8,†††††† 0.3

7.0,†† -0.140,††††††††††† 1493.8,†††††† 0.3

8.0,††† -0.140,††††††††††† 1493.8,†††††† 0.3

9.0,††† -0.140,††††††††††† 1493.8,†††††† 0.3

10.0,††† -0.140,††††††††††† 1493.8,†††††† 0.3

Mean velocity:†† 1493.5 m/sec

Calculated velocity at 23ÝC : 1501 m/sec

 

Measurement of attenuation:

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

Density:†††††††† 1038.0 Kg/m3

Impedance:†††††† 1.550 * 10E6 Kg/m2*sec

Reflection loss: -0.00 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*MHzdB/cm*MHz

3.13,††† 69.98,†† 3.13,†† 64.44,†† 5.54†††† 1.838,††† 0.588,†††† 0.033

4.15,††† 74.03,†† 4.15,†† 66.96,†† 7.07†††† 2.347,††† 0.566,†††† 0.025

5.18,††† 74.26,†† 5.13,†† 65.60,†† 8.65†††† 2.874,††† 0.555,†††† 0.020

6.15,††† 70.88,†† 6.15,†† 60.95,†† 9.93†††† 3.297,††† 0.536,†††† 0.017

7.13,††† 66.10,†† 7.13,†† 54.65,11.45†††† 3.801,††† 0.533,†††† 0.015

8.06,††† 61.24,†† 8.06,†† 48.47,12.77†††† 4.240,††† 0.526,†††† 0.014

9.03,††† 55.59,†† 9.03,†† 41.30,14.29†††† 4.746,††† 0.525,†††† 0.013

10.01,††† 50.02,†† 9.96,†† 34.33,15.69†††† 5.212,††† 0.521,†††† 0.012