53 citations · 53 across the 1 of their papers we have counts for
7 papers
Outgassing rate comparison of seven geometrically similar vacuum chambers of different materials and heat treatments
James A. Fedchak, Julia K. Scherschligt, Sefer Avdiaj +5
We have measured the water and hydrogen outgassing rates of seven vacuum chambers of identical geometry but constructed of different materials and heat treatments. Chambers of five…
A radiofrequency voltage-controlled current source for quantum spin manipulation
D. S. Barker, A. Restelli, J. A. Fedchak +2
We present a design for a wide-bandwidth, voltage-controlled current source that is easily integrated with radiofrequency magnetic field coils. Our design uses current feedback to…
Challenges to miniaturizing cold atom technology for deployable vacuum metrology
Stephen Eckel, Daniel S. Barker, James A. Fedchak +3
Cold atoms are excellent metrological tools; they currently realize SI time and, soon, SI pressure in the ultra-high (UHV) and extreme high vacuum (XHV) regimes. The development of…
Light-induced atomic desorption of lithium
D. S. Barker, E. B. Norrgard, J. Scherschligt +2
We demonstrate loading of a Li magneto-optical trap using light-induced atomic desorption. The magneto-optical trap confines up to approximately ato…
Development of a new UHV/XHV pressure standard (cold atom vacuum standard)
Julia Scherschligt, James A Fedchak, Daniel S Barker +4
The National Institute of Standards and Technology has recently begun a program to develop a primary pressure standard that is based on ultra-cold atoms, covering a pressure range…
Towards Photonics Enabled Quantum Metrology of Temperature, Pressure and Vacuum
Zeeshan Ahmed, Nikolai N. Klimov, Kevin Douglass +5
This chapter presents a brief overview of photonic sensor and standards development that is currently undergoing in the thermodynamic metrology group at NIST in the areas of temper…