Diff for "LCGT/subgroup/ifo/ISC/ClassicalNoise"

Differences between revisions 2 and 6 (spanning 4 versions)

Parameters

There are some issues to be discussed.

Beam radius	3.5 cm	issue 1
Suspension length	40 cm
Diameter of suspension fiber	1.8 mm	issue 2
Number of suspension fiber	4
Temperature of suspension	16 K
Mechanical loss of fiber	2e-7	issue 8
Mirror radius	12.5 cm	issue 3
Mirror thickness	15 cm
Bulk absorption	20 ppm/cm	issue 4
Coating absorption	0.1 ppm	issue 4
Temperature of mirrors	20 K
Mechanical loss of a mirror	1e-8	issue 7
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	70 ppm/roundtrip	issue 6
Optical loss in the SRC	2%
Optical loss at the PD	10%

Material properties

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/K
Thermal expansion of Sapphire (300K)	5.0e-6	1/K
Specific heat of Sapphire (300K)	790	J/K/kg
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/K
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	2.06
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/ClassicalNoise (last edited 2010-11-08 02:06:02 by KentaroSomiya)

-  ⇤ ← Revision 2 as of 2010-06-03 14:38:50 → 
  Size: 2863
  Editor: YoichiAso
  Comment:
+   ← Revision 6 as of 2010-11-08 02:06:02 → ⇥
  Size: 2703
  Editor: KentaroSomiya
  Comment:
-Deletions are marked like this.
+Additions are marked like this.
 Line 6:
-||Beam radius ||3cm ||[[LCGT/subgroup/ifo/ISC/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 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue8|issue 8]] ||
||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]] ||
||Temperature of mirrors ||20K || ||
||Mechanical loss of a mirror ||1e-8 ||[[LCGT/subgroup/ifo/ISC/TaskList/CurrentStatus/ClassicalNoise/issue7|issue 7]] ||
||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% || ||
+||Beam radius || 3.5 cm ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue1|issue 1]] ||
||Suspension length || 40 cm || ||
||Diameter of suspension fiber || 1.8 mm ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue2|issue 2]] ||
||Number of suspension fiber || 4 || ||
||Temperature of suspension || 16 K || ||
||Mechanical loss of fiber || 2e-7 ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue8|issue 8]] ||
||Mirror radius || 12.5 cm ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue3|issue 3]] ||
||Mirror thickness || 15 cm || ||
||Bulk absorption || 20 ppm/cm ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue4|issue 4]] ||
||Coating absorption || 0.1 ppm ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue4|issue 4]] ||
||Temperature of mirrors || 20 K || ||
||Mechanical loss of a mirror || 1e-8 ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue7|issue 7]] ||
||Number of coating layers (ITM) || 9  || ||
||Number of coating layers (ETM) || 18 || ||
||Mechanical loss of Silica coatings || 1e-4 ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue5|issue 5]] ||
||Mechanical loss of Tantala coatings || 4e-4 ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue5|issue 5]] ||
||Optical loss of each arm || 70 ppm/roundtrip ||[[LCGT/subgroup/ifo/ISC/ClassicalNoise/issue6|issue 6]] ||
||Optical loss in the SRC || 2% || ||
||Optical loss at the PD || 10% || ||
 Line 30:
-||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/K ||
||Thermal expansion of Sapphire (300K) ||5.0e-6 ||1/K ||
||Specific heat of Sapphire (300K) ||790 ||J/K/kg ||
||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/K ||
||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 ||2.06 || ||
||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/K ||
||Thermal expansion of Sapphire (300K) || 5.0e-6 ||1/K ||
||Specific heat of Sapphire (300K) || 790 ||J/K/kg ||
||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/K ||
||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 || 2.06 || ||
||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 ||