| AVS 63rd International Symposium & Exhibition | |
| Vacuum Technology | Monday Sessions |
| Session VT-MoM |
| Session: | Vacuum Measurement, Calibration, Primary and Industry Standards |
| Presenter: | James A. Fedchak, National Institute of Standards and Technology (NIST) |
| Authors: | J.A. Fedchak, National Institute of Standards and Technology (NIST) J. Scherschligt, 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 |
We are creating a program at NIST to develop new vacuum standards that cover the UHV and XHV. This addresses the needs of advanced manufacturing and research, including the semiconductor industry, accelerators, nanotechnology, and space science. NIST is also interested in developing metrological tools and other practical devices based on ultra-cold atoms, a technology pioneered at NIST that fundamentally operates in the UHV. Gravimeters, inertial sensing, and clocks are all examples of such devices, and any such device based on ultra-cold atoms will necessarily operate in UHV. To this end, we are presently developing a cold-atom vacuum standard (CAVS) to absolutely determine the vacuum level in the range of 10-7 torr to 10-12 torr. Our CAVS will use ultra-cold atoms to sense the absolute number density of gas molecules in the vacuum, and will be an SI traceable primary realization of UHV and XHV. In addition, we’re developing the Cold-Core Technology program, which seeks to create a platform enabling the miniaturization of the CAVS and other practical cold-atom devices. An active UHV and XHV program is critical and necessary for this effort. This includes traditional activities such as producing and measuring low-outgassing rate materials and building dynamic expansion chambers for generating UHV pressures, as well as new efforts like building the CAVS. This talk will be an overview of these activities in light of creating the CAVS and other devices based on ultra-cold atom technology.