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Size: 1505
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Size: 2477
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| ||Beam radius||3cm||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue1|issue 1]]|| ||Suspension length||40cm|| || ||Suspension thickness||1.8mm||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue2|issue 2]]|| || || || || |
|| Beam radius ||3cm||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue1|issue 1]]|| || Suspension length ||40cm|| || || Suspension thickness ||1.8mm||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue2|issue 2]]|| || Number of suspension fiber || 4 || || || Temperature of suspension || 16K || || || Mechanical loss of fiber || 2e-7 || || || Mirror radius ||12.5cm||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue3|issue 3]]|| || Mirror thickness || 15cm ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue4|issue 4]]|| || Temperature of suspension || 20K || || || Mechanical loss of mirror || 1e-8 || || || Number of coatings (ITM) || 9 || || || Number of coatings (ETM) || 18 || || || Mechanical loss of Silica coating || 1e-4 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue5|issue 5]]|| || Mechanical loss of Tantala coating || 4e-4 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue5|issue 5]]|| || Optical loss of each arm || 70ppm/roundtrip ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue6|issue 6]]|| || Optical loss in the SRC || 2% || || Optical loss at the PD || 10% || |
Classical-Noise parameters
There are some issues to be discussed.
Beam radius |
3cm |
|
Suspension length |
40cm |
|
Suspension thickness |
1.8mm |
|
Number of suspension fiber |
4 |
|
Temperature of suspension |
16K |
|
Mechanical loss of fiber |
2e-7 |
|
Mirror radius |
12.5cm |
|
Mirror thickness |
15cm |
|
Temperature of suspension |
20K |
|
Mechanical loss of mirror |
1e-8 |
|
Number of coatings (ITM) |
9 |
|
Number of coatings (ETM) |
18 |
|
Mechanical loss of Silica coating |
1e-4 |
|
Mechanical loss of Tantala coating |
4e-4 |
|
Optical loss of each arm |
70ppm/roundtrip |
|
Optical loss in the SRC |
2% |
|
Optical loss at the PD |
10% |
Physical constants
Young's modulus of Sapphire |
4e11 Pa |
Density of Sapphire |
kg/m^3 |
Poisson ratio of Sapphire |
0.29 |
Thermal expansion of Sapphire (20K) |
5.6e-9 K^-1 |
Specific heat of Sapphire (20K) |
0.69 |
Thermal conductivity of Sapphire (20K) |
1.57e4 |
Thermal expansion of Sapphire (300K) |
5.0e-6 K^-1 |
Specific heat of Sapphire (300K) |
790 |
Thermal conductivity of Sapphire (300K) |
40 |
Young's modulus of Silica |
7.2e10 Pa |
Poisson ratio of Silica |
0.17 |
Refraction index of Silica |
1.45 |
Thermal expansion of Silica (300K) |
5.1e-7 K^-1 |
Specific heat of Silica (300K) |
|
Thermal conductivity of Silica (300K) |
1.38 |
dn/dT of Silica (300K) |
8e-6 K^-1 |
Young's modulus of Tantala |
1.4e11 Pa |
Poisson ratio of Tantala |
0.23 |
Refraction index of Tantala |
2.07 |
Thermal expansion of Tantala (300K) |
3.6e-7 K^-1 |
Specific heat of Tantala (300K) |
|
Thermal conductivity of Tantala (300K) |
33 |
dn/dT of Tantala (300K) |
14e-6 K^-1 |
TO BE COMPLETED...