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Title: An adaptable dual species effusive source and Zeeman slower design demonstrated with Rb and Li

Abstract

We present a dual-species effusive source and Zeeman slower designed to produce slow atomic beams of two elements with a large mass difference and with very different oven temperature requirements. We demonstrate this design for the case of {sup 6}Li and {sup 85}Rb and achieve magneto-optical trap (MOT) loading rates equivalent to that reported in prior work on dual species (Rb+Li) Zeeman slowers operating at the same oven temperatures. Key design choices, including thermally separating the effusive sources and using a segmented coil design to enable computer control of the magnetic field profile, ensure that the apparatus can be easily modified to slow other atomic species. By performing the final slowing using the quadrupole magnetic field of the MOT, we are able to shorten our Zeeman slower length making for a more compact system without compromising performance. We outline the construction and analyze the emission properties of our effusive sources. We also verify the performance of the source and slower, and we observe sequential loading rates of 12 × 10{sup 8} atoms/s for a Rb oven temperature of 140 °C and 1.1 × 10{sup 8} atoms/s for a Li reservoir at 460 °C, corresponding to reservoir lifetimes for continuous operation of 10more » and 4 years, respectively.« less

Authors:
; ; ; ;  [1]
  1. The Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia V6T 1Z1 (Canada)
Publication Date:
OSTI Identifier:
22597119
Resource Type:
Journal Article
Journal Name:
Review of Scientific Instruments
Additional Journal Information:
Journal Volume: 87; Journal Issue: 4; Other Information: (c) 2016 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0034-6748
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ATOMIC BEAMS; ATOMS; CONTROL; EMISSION; LENGTH; LITHIUM 6; LOADING; LOADING RATE; MAGNETIC FIELDS; MASS DIFFERENCE; PERFORMANCE; RUBIDIUM 85; ZEEMAN EFFECT

Citation Formats

Bowden, William, E-mail: william.bowden@physics.ox.ac.uk, Gunton, Will, Semczuk, Mariusz, Dare, Kahan, and Madison, Kirk W. An adaptable dual species effusive source and Zeeman slower design demonstrated with Rb and Li. United States: N. p., 2016. Web. doi:10.1063/1.4945567.
Bowden, William, E-mail: william.bowden@physics.ox.ac.uk, Gunton, Will, Semczuk, Mariusz, Dare, Kahan, & Madison, Kirk W. An adaptable dual species effusive source and Zeeman slower design demonstrated with Rb and Li. United States. doi:10.1063/1.4945567.
Bowden, William, E-mail: william.bowden@physics.ox.ac.uk, Gunton, Will, Semczuk, Mariusz, Dare, Kahan, and Madison, Kirk W. Fri . "An adaptable dual species effusive source and Zeeman slower design demonstrated with Rb and Li". United States. doi:10.1063/1.4945567.
@article{osti_22597119,
title = {An adaptable dual species effusive source and Zeeman slower design demonstrated with Rb and Li},
author = {Bowden, William, E-mail: william.bowden@physics.ox.ac.uk and Gunton, Will and Semczuk, Mariusz and Dare, Kahan and Madison, Kirk W.},
abstractNote = {We present a dual-species effusive source and Zeeman slower designed to produce slow atomic beams of two elements with a large mass difference and with very different oven temperature requirements. We demonstrate this design for the case of {sup 6}Li and {sup 85}Rb and achieve magneto-optical trap (MOT) loading rates equivalent to that reported in prior work on dual species (Rb+Li) Zeeman slowers operating at the same oven temperatures. Key design choices, including thermally separating the effusive sources and using a segmented coil design to enable computer control of the magnetic field profile, ensure that the apparatus can be easily modified to slow other atomic species. By performing the final slowing using the quadrupole magnetic field of the MOT, we are able to shorten our Zeeman slower length making for a more compact system without compromising performance. We outline the construction and analyze the emission properties of our effusive sources. We also verify the performance of the source and slower, and we observe sequential loading rates of 12 × 10{sup 8} atoms/s for a Rb oven temperature of 140 °C and 1.1 × 10{sup 8} atoms/s for a Li reservoir at 460 °C, corresponding to reservoir lifetimes for continuous operation of 10 and 4 years, respectively.},
doi = {10.1063/1.4945567},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 4,
volume = 87,
place = {United States},
year = {2016},
month = {4}
}