Picture of scraped petri dish

Scrape below the surface of Strathprints...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Explore world class Open Access research by researchers at Strathclyde, a leading technological university.

Explore

Optimization of immunity to helium tidal influences for the STEP experiment test masses

Lockerbie, N.A. and Xu, X. and Veryaskin, A.V. and Hosey, M.A. (1994) Optimization of immunity to helium tidal influences for the STEP experiment test masses. Classical and Quantum Gravity, 11 (6). pp. 1575-1590. ISSN 0264-9381

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

This paper describes an optimization strategy for the design of the three pairs of test masses in the STEP (satellite test of the equivalence principle) experiment. Using these designs, the allowable helium tidal amplitude is calculated for a STEP accelerometer sensitivity of , based on a worst case distribution of the liquid helium in the satellite's dewar. It is found that the hybrid belted/straight-cylinder geometry can be dimensioned such that the quadrupole moment and differential hexadecapole moment are identically zero. The resulting test mass designs are technically feasible. Some practical problems relating to their manufacture are discussed.