Neil Ashby

Publications

A relativistic framework to establish Coordinate time on the Moon and Beyond

February 17, 2024

Author(s)

Neil Ashby, Bijunath Patla

The rate of clocks, according to Einstein's theory of relativity, is influenced by the gravitational potential and relative motion of the clocks. A grid of

Initial Study of the distributed cavity phase shift for the new microwave cavities of Cs fountains at NIST

April 24, 2022

Author(s)

Gregory Hoth, Bijunath Patla, Neil Ashby, Vladislav Gerginov

The microwave cavities of NIST-F1, the cesium fountain primary frequency standard at the National Institute of Standards and Technology (NIST), have been

Initial study of the distributed cavity phase shift for the new microwave cavities of NIST F1

December 21, 2021

Author(s)

Gregory Hoth, Bijunath Patla, Neil Ashby, Vladislav Gerginov

We are in the process of re-evaluating NIST-F1, the cesium fountain primary frequency standard at the National Institute of Standards and Technology (NIST)

Comparison of Open and Solid Falling Retroreflector Gravimeters

May 29, 2020

Author(s)

Neil Ashby, Derek Van Westrum

We study whether the optical properties of a solid glass retroreflector influence the value of the acceleration of gravity $g$ determined by dropping both solid

A null test of General Relativity: Long term comparison of H-masers and Cs-fountains

August 1, 2018

Author(s)

Neil Ashby, Thomas E. Parker, Bijunath Patla

The fractional frequency comparison of clocks based on different atoms: hydrogen and cesium, is used to test one of the main postulates of general relativity to

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Neil Ashby (Assoc)

Publications