Cosmic Explorer Strain and Displacement Sensitivity

Document #:

CE-T2000017-v9

Document type:

T - Technical notes

Abstract:

Strain ASDs:
* cosmic_explorer_strain.txt: the baseline 40 km detector
* cosmic_explorer_20km_strain.txt: the baseline 20 km detector

Displacement ASDs:
* cosmic_explorer_displacement.txt: the baseline 40 km detector
* cosmic_explorer_20km_displacement.txt: the baseline 20 km detector

Strain curves are calculated for a source 15 deg off of normal incidence. Note that, due to the long arms of Cosmic Explorer, displacement cannot be converted into strain by simply dividing by the arm length.

Files in Document:

• ce_sensitivity.zip (74.8 kB)

Other Files:

• ce_displacement.pdf (16.4 kB)
• ce_strain.pdf (15.9 kB)

Topics:

• Detector

Authors:

• Kevin Kuns
• Paul Fulda
• Lisa Barsotti
• Matthew Evans

Notes and Changes:

v9: increased test mass mass to 440 kg, updated suspensions, included SQZ degradations around HOM arm cavity resonances (CE-P2400005), increased beam size to 13 cm
v8: Increased SEC lengths for more realistic optical design; impacts high frequency sensitivity
v7: make public page point to abstract; no change to noise.
v6: Added displacement sensitivities
v5: Added 20km compact binary and post-merger and 40 km low-frequency curves
v4: Curve from the Cosmic Explorer Horizon Study CE-P2100003
v3: Curves from arXiv:2012.03608
v2: Updated test mass sizes, radii of curvature, and suspensions.

Related Documents:

• CE-P2100003: Cosmic Explorer Horizon Study

Referenced by:

• CE-T2000007-v5: OBSOLETE (DO NOT USE): Sensitivity Curves for the Cosmic Explorer Trade Study
• CE-T2500009-v1: Science Traceability Matrix Sensitivity Curves