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'''[[../|..Up]]''' '''[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus|..Up]]'''
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There are some issues to be discussed.
||Beam radius ||3cm ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue1|issue 1]] ||
||Suspension length ||40cm || ||
||Diameter of suspension fiber ||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 || ||
||Bulk absorption ||20ppm/cm ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue4|issue 4]] ||
||Coating absorption ||0.1ppm ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue4|issue 4]] ||
||Number of coating layers (ITM) ||9 (?) || ||
||Number of coating layers (ETM) ||18 (?) || ||
||Mechanical loss of Silica coatings ||1e-4 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue5|issue 5]] ||
||Mechanical loss of Tantala coatings ||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% || ||
||Temperature of mirrors ||20K || ||
||Mechanical loss of a mirror ||1e-8 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue7|issue 7]] ||
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There are some issues to be discussed.
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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]]||
|| 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 || ||
|| Bulk absorption || 20ppm/cm || [[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue4|issue 4]] ||
|| Coating absorption || 0.1ppm || [[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue4|issue 4]] ||
|| Number of coating layers (ITM) || 9 (?) || ||
|| Number of coating layers (ETM) || 18 (?) || ||
|| Mechanical loss of Silica coatings || 1e-4 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue5|issue 5]]||
|| Mechanical loss of Tantala coatings || 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% || ||
|| Temperature of mirrors || 20K || ||
|| Mechanical loss of a mirror || 1e-8 || [[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue7|issue 7]] ||
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||
Young's modulus of Sapphire || 4e11 || Pa ||
|| Density of Sapphire || 4e3 || kg/m^3||
||
Poisson ratio of Sapphire || 0.29 || ||
|| Thermal expansion of Sapphire (20K) || 5.6e-9 || 1/K||
||
Specific heat of Sapphire (20K) || 0.69 || J/K/kg ||
|| Thermal conductivity of Sapphire (20K) || 1.57e4 || W/m ||
|| Thermal expansion of Sapphire (300K) || 5.0e-6 || 1/K||
|| Specific heat of Sapphire (300K) ||
790 || J/K ||
|| Thermal conductivity of Sapphire (300K) || 40 || W/m/K ||
|| 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 || 1/K||
||
Specific heat per volume of Silica (300K) || 1.64e6 || J/K/m^3 ||
|| Thermal conductivity of Silica (300K) || 1.38 || W/m ||
|| dn/dT of Silica (300K) || 8e-6 || 1/K ||
||
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 || 1/K||
||
Specific heat per volume of Tantala (300K) || 2.1e6 || J/K/m^3 ||
|| Thermal conductivity of Tantala (300K) || 33 || W/m/K ||
|| dn/dT of Tantala (300K) || 14e-6 || 1/K ||
||Young's modulus of Sapphire ||4e11 ||Pa ||
||Density of Sapphire ||4e3 ||kg/m^3 ||
||
Poisson ratio of Sapphire ||0.29 || ||
||Thermal expansion of Sapphire (20K) ||5.6e-9 ||1/K ||
||
Specific heat of Sapphire (20K) ||0.69 ||J/K/kg ||
||Thermal conductivity of Sapphire (20K) ||1.57e4 ||W/m ||
||Thermal expansion of Sapphire (300K) ||5.0e-6 ||1/K ||
||Specific heat of Sapphire (300K) ||
790 ||J/K ||
||Thermal conductivity of Sapphire (300K) ||40 ||W/m/K ||
||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 ||1/K ||
||
Specific heat per volume of Silica (300K) ||1.64e6 ||J/K/m^3 ||
||Thermal conductivity of Silica (300K) ||1.38 ||W/m ||
||dn/dT of Silica (300K) ||8e-6 ||1/K ||
||
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 ||1/K ||
||
Specific heat per volume of Tantala (300K) ||2.1e6 ||J/K/m^3 ||
||Thermal conductivity of Tantala (300K) ||33 ||W/m/K ||
||dn/dT of Tantala (300K) ||14e-6 ||1/K ||

..Up

Classical-Noise parameters

There are some issues to be discussed.

Beam radius

3cm

issue 1

Suspension length

40cm

Diameter of suspension fiber

1.8mm

issue 2

Number of suspension fiber

4

Temperature of suspension

16K

Mechanical loss of fiber

2e-7

Mirror radius

12.5cm

issue 3

Mirror thickness

15cm

Bulk absorption

20ppm/cm

issue 4

Coating absorption

0.1ppm

issue 4

Number of coating layers (ITM)

9 (?)

Number of coating layers (ETM)

18 (?)

Mechanical loss of Silica coatings

1e-4

issue 5

Mechanical loss of Tantala coatings

4e-4

issue 5

Optical loss of each arm

70ppm/roundtrip

issue 6

Optical loss in the SRC

2%

Optical loss at the PD

10%

Temperature of mirrors

20K

Mechanical loss of a mirror

1e-8

issue 7

Physical constants

Young's modulus of Sapphire

4e11

Pa

Density of Sapphire

4e3

kg/m^3

Poisson ratio of Sapphire

0.29

Thermal expansion of Sapphire (20K)

5.6e-9

1/K

Specific heat of Sapphire (20K)

0.69

J/K/kg

Thermal conductivity of Sapphire (20K)

1.57e4

W/m

Thermal expansion of Sapphire (300K)

5.0e-6

1/K

Specific heat of Sapphire (300K)

790

J/K

Thermal conductivity of Sapphire (300K)

40

W/m/K

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

1/K

Specific heat per volume of Silica (300K)

1.64e6

J/K/m^3

Thermal conductivity of Silica (300K)

1.38

W/m

dn/dT of Silica (300K)

8e-6

1/K

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

1/K

Specific heat per volume of Tantala (300K)

2.1e6

J/K/m^3

Thermal conductivity of Tantala (300K)

33

W/m/K

dn/dT of Tantala (300K)

14e-6

1/K

LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise (last edited 2009-06-09 16:20:41 by whitehole)