Cold Atomic Beam System
Complete cold atomic beam sources for alkaline-earth precision experiments and atomic devices.
- Description
- Additional information
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Description
Detailed description of item: Complete cold atomic beam sources for alkaline-earth precision experiments and atomic devices. Small chambers with patented permanent-magnet Zeeman slowers and in-vacuum 2D MOT optics allow high flux with low outgassing and no thermal beam flux at the cold atom port, which provides a CF-133 connection to customer vacuum chamber. Advanced thermal design of the effusion oven allows long-lifetime operation at minimal heating power, with no water cooling. An integrated low-outgassing hot window is provided for coupling of on-axis Zeeman cooling light. Ion and getter pumps integrated into the chamber manage outgassing from the oven at temperatures up to 520 °C. Operating baseline pressures below 1×10-11 mbar can be attained in the customer’s downstream cold atom (typically 3D MOT) science chamber, with suitable pumping speed provided at the differentially-pumped cold beam output port.
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Additional information
| Beam-RevC-XX | Beam-RevC-Ca, Beam-RevC-Sr, Beam-RevC-Yb |
|---|
| Cold Atomic Beams System | Performance |
| Cold atom flux | 1011 atoms/s |
| Temperature transverse | TꞱ < 3 mK |
| Axial Speed | ~40 m/s |
| Atomic Beam Oven | Performance |
| Stontium flux, 17 mrad half-angle | >3x1013 atoms/s |
| Calcium flux, 11 mrad half-angle | >1x1014 atoms/s |
| Power consumption | 5 W at 520 C |
| Outgassing | 6x10-8 Torr-L/s at 400˚C |
| Water cooling | none |
| Maximum temperature (tested) | 650˚C |
| Zeeman Slower | Performance |
| Type | Sigma-minus standard |
| B-field generation | Permanent magnets |
| Magnetic shield | Integrated |
| Thermal shield | Integrated |
| Mounting | In-vacuum |
| Hot Window for Slower | Performance |
| Maximum temperature (tested) | 480˚C |
| Outgassing | 3x10-9 Torr-L/s at 480˚C |
| Mounting | In-vacuum |
| Window material | Z-cut sapphire, AR coating |
| Clear aperture | 8.5 mm |
| Atomic Beams Chambers | Performance |
| Windows | Welded, AR coated |
| Seals | ConFlat |
| Volume | 2 L, complete system |
| Ion Pump | 3 L/s, integrated |
| Getter Pumps | 50 L/s and 5 L/s |
| Beam chamber baseline vacuum level (before pressure drop across the differentially-pumped output tube): - Oven and hot window off - 480˚C oven, 350˚C window - typical operation | < 1x10-10 Torr < 2x10-8 Torr |
| Connection to the customer systems | UHV gate valve standard |
