From ec88c2411416413c74988378c288e0cf78a31e6e Mon Sep 17 00:00:00 2001 From: Jameson Graef Rollins <jrollins@finestructure.net> Date: Thu, 22 Mar 2018 16:40:27 -0700 Subject: [PATCH] tweak comment formatting in aLIGO definition no functional change --- gwinc/ifo/aLIGO.yaml | 148 +++++++++++++++++++++---------------------- 1 file changed, 73 insertions(+), 75 deletions(-) diff --git a/gwinc/ifo/aLIGO.yaml b/gwinc/ifo/aLIGO.yaml index 6b3cc39b..f2f005dc 100644 --- a/gwinc/ifo/aLIGO.yaml +++ b/gwinc/ifo/aLIGO.yaml @@ -26,24 +26,22 @@ # 12. Gretarsson & Harry, Gretarsson thesis # 13. Fejer # 14. Braginsky -# -# Constants: # Temperature of the Vacuum - Temp: 290 # K + Temp: 290 # K Infrastructure: - Length: 3995 # m + Length: 3995 # m ResidualGas: - pressure: 4.0e-7 # Pa - mass: 3.35e-27 # kg; Mass of H_2 (ref. 10) - polarizability: 7.8e-31 # m^3 + pressure: 4.0e-7 # Pa + mass: 3.35e-27 # kg; Mass of H_2 (ref. 10) + polarizability: 7.8e-31 # m^3 TCS: - s_cc: 7.024 # Watt^-2 - s_cs: 7.321 # Watt^-2 - s_ss: 7.631 # Watt^-2 + s_cc: 7.024 # Watt^-2 + s_cs: 7.321 # Watt^-2 + s_ss: 7.631 # Watt^-2 # The hardest part to model is how efficient the TCS system is in # compensating this loss. Thus as a simple Ansatz we define the # TCS efficiency TCSeff as the reduction in effective power that produces @@ -58,14 +56,14 @@ TCS: SRCloss: 0.00 Seismic: - Site: 'LHO' # LHO or LLO (only used for Newtonian noise) - KneeFrequency: 10 # Hz; freq where 'flat' noise rolls off - LowFrequencyLevel: 1e-9 # m/rtHz; seismic noise level below f_knee - Gamma: .8 # abruptness of change at f_knee - Rho: 1.8e3 # kg/m^3; density of the ground nearby - Beta: 0.5 # quiet times beta: 0.35-0.60 + Site: 'LHO' # LHO or LLO (only used for Newtonian noise) + KneeFrequency: 10 # Hz; freq where 'flat' noise rolls off + LowFrequencyLevel: 1e-9 # m/rtHz; seismic noise level below f_knee + Gamma: .8 # abruptness of change at f_knee + Rho: 1.8e3 # kg/m^3; density of the ground nearby + Beta: 0.5 # quiet times beta: 0.35-0.60 # noisy times beta: 0.15-1.4 - Omicron: 1 # Feedforward cancellation factor + Omicron: 1 # Feedforward cancellation factor Suspension: # 0 for cylindrical suspension @@ -73,20 +71,20 @@ Suspension: Type: 2 # 0: round, 1: ribbons FiberType: 0 - BreakStress: 750e6 # Pa; ref. K. Strain + BreakStress: 750e6 # Pa; ref. K. Strain Temp: 290 VHCoupling: - theta: 1e-3 # vertical-horizontal x-coupling + theta: 1e-3 # vertical-horizontal x-coupling Silica: - Rho : 2200 # Kg/m^3; - C : 772 # J/Kg/K; - K : 1.38 # W/m/kg; - Alpha : 3.9e-7 # 1/K; - dlnEdT: 1.52e-4 # (1/K), dlnE/dT - Phi : 4.1e-10 # from G Harry e-mail to NAR 27April06 dimensionless units - Y : 72e9 # Pa; Youngs Modulus - Dissdepth: 1.5e-2 # from G Harry e-mail to NAR 27April06 + Rho : 2200 # Kg/m^3; + C : 772 # J/Kg/K; + K : 1.38 # W/m/kg; + Alpha : 3.9e-7 # 1/K; + dlnEdT: 1.52e-4 # (1/K), dlnE/dT + Phi : 4.1e-10 # from G Harry e-mail to NAR 27April06 dimensionless units + Y : 72e9 # Pa; Youngs Modulus + Dissdepth: 1.5e-2 # from G Harry e-mail to NAR 27April06 C70Steel: Rho: 7800 @@ -95,7 +93,7 @@ Suspension: Alpha: 12e-6 dlnEdT: -2.5e-4 Phi: 2e-4 - Y: 212e9 # measured by MB for one set of wires + Y: 212e9 # measured by MB for one set of wires MaragingSteel: Rho: 7800 @@ -127,12 +125,12 @@ Suspension: # in suspQuad, so including it here would double count) Stage: # Stage1 - - Mass: 39.6 # kg; current numbers May 2006 NAR - Length: 0.59 # m - Dilution: .nan # - K: .nan # N/m; vertical spring constant - WireRadius: .nan # m - Blade: .nan # blade thickness + - Mass: 39.6 # kg; current numbers May 2006 NAR + Length: 0.59 # m + Dilution: .nan # + K: .nan # N/m; vertical spring constant + WireRadius: .nan # m + Blade: .nan # blade thickness NWires: 4 # Stage2 @@ -199,45 +197,45 @@ Materials: ## Substrate Material parameters-------------------------------------------- Substrate: - c2 : 7.6e-12 # Coeff of freq depend. term for bulk mechanical loss, 7.15e-12 for Sup2 - MechanicalLossExponent: 0.77 # Exponent for freq dependence of silica loss, 0.822 for Sup2 - Alphas: 5.2e-12 # Surface loss limit (ref. 12) - MirrorY: 7.27e10 # N/m^2; Youngs modulus (ref. 4) - MirrorSigma: 0.167 # Kg/m^3; Poisson ratio (ref. 4) - MassDensity: 2.2e3 # Kg/m^3; (ref. 4) - MassAlpha: 3.9e-7 # 1/K; thermal expansion coeff. (ref. 4) - MassCM: 739 # J/Kg/K; specific heat (ref. 4) - MassKappa: 1.38 # J/m/s/K; thermal conductivity (ref. 4) - RefractiveIndex: 1.45 # mevans 25 Apr 2008 + c2 : 7.6e-12 # Coeff of freq depend. term for bulk mechanical loss, 7.15e-12 for Sup2 + MechanicalLossExponent: 0.77 # Exponent for freq dependence of silica loss, 0.822 for Sup2 + Alphas: 5.2e-12 # Surface loss limit (ref. 12) + MirrorY: 7.27e10 # N/m^2; Youngs modulus (ref. 4) + MirrorSigma: 0.167 # Kg/m^3; Poisson ratio (ref. 4) + MassDensity: 2.2e3 # Kg/m^3; (ref. 4) + MassAlpha: 3.9e-7 # 1/K; thermal expansion coeff. (ref. 4) + MassCM: 739 # J/Kg/K; specific heat (ref. 4) + MassKappa: 1.38 # J/m/s/K; thermal conductivity (ref. 4) + RefractiveIndex: 1.45 # mevans 25 Apr 2008 ## Laser------------------------------------------------------------------- Laser: - Wavelength: 1.064e-6 # m - Power: 125 # W + Wavelength: 1.064e-6 # m + Power: 125 # W ## Optics------------------------------------------------------------------ Optics: Type: 'SignalRecycled' - PhotoDetectorEfficiency: 0.95 # photo-detector quantum efficiency - Loss: 37.5e-6 # average per mirror power loss - BSLoss: 0.5e-3 # power loss near beamsplitter - coupling: 1.0 # mismatch btwn arms & SRC modes; used to + PhotoDetectorEfficiency: 0.95 # photo-detector quantum efficiency + Loss: 37.5e-6 # average per mirror power loss + BSLoss: 0.5e-3 # power loss near beamsplitter + coupling: 1.0 # mismatch btwn arms & SRC modes; used to - #SubstrateAbsorption: 0.5e-4 # 1/m; bulk absorption coef (ref. 2) - SubstrateAbsorption: 0.3e-4 # 1/m; 0.3 ppm/cm for Hereaus - pcrit: 10 # W; tolerable heating power (factor 1 ATC) + #SubstrateAbsorption: 0.5e-4 # 1/m; bulk absorption coef (ref. 2) + SubstrateAbsorption: 0.3e-4 # 1/m; 0.3 ppm/cm for Hereaus + pcrit: 10 # W; tolerable heating power (factor 1 ATC) Quadrature: - dc: 1.5707963 # pi/2 # demod/detection/homodyne phase + dc: 1.5707963 # pi/2 # demod/detection/homodyne phase ITM: - BeamRadius: 0.055 # m, 1/e^2 power radius + BeamRadius: 0.055 # m, 1/e^2 power radius Transmittance: 0.014 CoatingThicknessLown: 0.308 CoatingThicknessCap: 0.5 CoatingAbsorption: 0.5e-6 - SubstrateAbsorption: 0.3e-4 # 1/m, 0.3 ppm/cm for Hereaus + SubstrateAbsorption: 0.3e-4 # 1/m, 0.3 ppm/cm for Hereaus ETM: - BeamRadius: 0.062 # m, 1/e^2 power radius + BeamRadius: 0.062 # m, 1/e^2 power radius Transmittance: 5e-6 CoatingThicknessLown: 0.27 CoatingThicknessCap: 0.5 @@ -245,10 +243,10 @@ Optics: Transmittance: 0.03 SRM: Transmittance: 0.20 - CavityLength: 55 # m, ITM to SRM distance - Tunephase: 0.0 # SEC tuning + CavityLength: 55 # m, ITM to SRM distance + Tunephase: 0.0 # SEC tuning - Curvature: # ROC + Curvature: # ROC ITM: 1970 ETM: 2192 @@ -261,18 +259,18 @@ Optics: # OptimalOptimal = optimal squeeze angle, assuming optimal readout phase Squeezer: Type: 'None' - AmplitudedB: 10 # SQZ amplitude [dB] - InjectionLoss: 0.05 # power loss to sqz - SQZAngle: 0 # SQZ phase [radians] + AmplitudedB: 10 # SQZ amplitude [dB] + InjectionLoss: 0.05 # power loss to sqz + SQZAngle: 0 # SQZ phase [radians] # Parameters for frequency dependent squeezing FilterCavity: - fdetune: -14.5 # detuning [Hz] - L: 100 # cavity length - Ti: 0.12e-3 # input mirror trasmission [Power] - Te: 0 # end mirror trasmission - Lrt: 100e-6 # round-trip loss in the cavity - Rot: 0 # phase rotation after cavity + fdetune: -14.5 # detuning [Hz] + L: 100 # cavity length + Ti: 0.12e-3 # input mirror trasmission [Power] + Te: 0 # end mirror trasmission + Lrt: 100e-6 # round-trip loss in the cavity + Rot: 0 # phase rotation after cavity ## Variational Output Parameters-------------------------------------------- # Define the output filter cavity chain @@ -282,9 +280,9 @@ Squeezer: OutputFilter: Type: 'None' FilterCavity: - fdetune: -30 # detuning [Hz] - L: 4000 # cavity length - Ti: 10e-3 # input mirror trasmission [Power] - Te: 0 # end mirror trasmission - Lrt: 100e-6 # round-trip loss in the cavity - Rot: 0 # phase rotation after cavity + fdetune: -30 # detuning [Hz] + L: 4000 # cavity length + Ti: 10e-3 # input mirror trasmission [Power] + Te: 0 # end mirror trasmission + Lrt: 100e-6 # round-trip loss in the cavity + Rot: 0 # phase rotation after cavity -- GitLab