Relation Between Loss Angle & Per mol-atom Specific Heat

Document #:

LIGO-T0900218-v1

Document type:

T - Technical notes

Abstract:

This document shows the trend between measuered phi (loss angle) and "looked up" measured specific heat, and measured phi vs. an ab initio calculation of the specific heat. The trend provides a possibel way to select materials to lower the noise floor.

Files in Document:

• T0900218-v1 Phi vs C (SiO2 Al2O3 ZrO2 Ta2O5 HfO2).pdf (56.8 kB)

Topics:

• Basic R&D
• Other data analysis
• Core Optics

Author Groups:

• LSC

Keywords:

phi thermal noise loss angle specific heat