AVS 63rd International Symposium & Exhibition
    Vacuum Technology Monday Sessions
       Session VT-MoM

Paper VT-MoM6
Technical Challenges of the Cold Atom Vacuum Standard

Monday, November 7, 2016, 10:00 am, Room 104C

Session: Vacuum Measurement, Calibration, Primary and Industry Standards
Presenter: Julia Scherschligt, National Institute of Standards and Technology (NIST)
Authors: J. Scherschligt, National Institute of Standards and Technology (NIST)
J.A. Fedchak, National Institute of Standards and Technology (NIST)
M.S. Sefa, National Institute of Standards and Technology (NIST)
S. Eckel, National Institute of Standards and Technology (NIST)
D. Barker, National Institute of Standards and Technology (NIST)
Correspondent: Click to Email

NIST has recently launched a program combining cold-atom physics with vacuum metrology and has begun to build the Cold Atom Vacuum Standard (CAVS). Development of the cold atom vacuum standard presents a variety of technical challenges: we need a thorough understanding of the collision cross section of trapped atoms with background gas, we need to achieve excellent vacuum levels and prevent contamination of the test system with sensor alkali atoms, and we need a robust and user-friendly design if the device is ever to be practical for real-world applications. We will discuss progress that has been made in determining collision cross sections, measuring and reducing outgassing rates, as well as design considerations of the cold atom device itself.