Date : 03-05-1996 Flash -- Version : 2.90 Time : 10:17:55

Thermal Diffusivity
laser17.dat Filtered TPRL report: 0000

Description: SS
Value Time(sec)
Baseline -0.4644 0.106000
Halfmax: 1.4399 0.105990
Maximum: 3.344087 0.456000
Thickness: 0.17220
Temperature: 75. C
Baseline slope subtracted
Alpha Percent Value Time(sec)
----- ------- ----- ---------
0.04351 10.0 -0.0835 0.045049
0.04067 20.0 0.2973 0.061436
0.03987 25.0 0.4877 0.068961
0.03934 30.0 0.6782 0.076286
0.03911 33.3 0.8051 0.081117
0.03883 40.0 1.0590 0.090841
0.03883 50.0 1.4399 0.105990
0.03919 60.0 1.8207 0.122740
0.03955 66.7 2.0746 0.135741
0.03976 70.0 2.2016 0.143096
0.04004 75.0 2.3920 0.155903
0.04034 80.0 2.5824 0.171427
0.04051 90.0 2.9632 0.222172
Radiation heat loss corrections :
Alpha at 50% method :
0.03883--80/20 0.03790--80/30 0.03717--80/40 0.03862--75/25
0.03883--70/20 0.03820--70/30 0.03710--70/40 0.03799--66/33
0.03883--60/20 0.03883--60/30 0.03763--60/40
Average ALPHA is 0.03817
Cowan Method :
Ten halftimes : Greater than max time
Five halftimes : 0.03807 Voltage : 3.31978 corrected : 3.78414
Ten halftimes : 0.03772 Voltage : 3.19578 corrected : 3.66014