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Quantum Cores

Cold Atom Source Cells

Integrate a compact, UHV-compatible source cell into your vacuum system to produce high-flux beams of laser-cooled rubidium or cesium atoms with a 2D+ magneto-optical trap.

High Flux Delivery

High-Flux Delivery

The Cold Atom Source Cell (CASC) combines an alkali vapor source, optical access, and a differential-pumping aperture in one compact component. With the right 2D MOT laser parameters, typical atom flux is 1 × 10^9 atoms per second.

Typical atom flux: 1 × 10^9 atoms per second. Output depends on 2D MOT laser parameters.

Built to Integrate

  • DN16 (1.33-inch) CF vacuum connection

  • 2.75-inch adapter plate available

  • Up to two pre-installed Rb or Cs sources

  • Maximum bakeout temperature: 225 °C

  • Compact 30 × 30 × 94.6 mm footprint

Built to Integrate

Product Options

Choose Your Atom Source

Choose one or two pre-installed alkali sources to match your experiment. Configurations support rubidium, cesium, or both, with a common cell geometry and standard vacuum interface.

CSFX00 Rubidium or Cesium

Single Source

One pre-installed Rb or Cs source
  • One pre-installed Rb or Cs source
  • Non-evaporable getter (NEG) optional

Typical flux

1 × 10^9/s

CSFRR0 / CSFCC0 Rubidium or Cesium

Dual, Same Element

Two Rb sources or two Cs sources
  • Two Rb sources or two Cs sources

Two pre-installed sources

CSFRC0 Rubidium + Cesium

Dual, Mixed Element

One Rb source and one Cs source
  • One Rb source and one Cs source

Two-species flexibility, custom offerings available

BENEFITS

Focus on the Experiment

Bring a proven cold atom source architecture into your lab without developing the source cell from the ground up.

  • Established Architecture

    Based on the source-cell design used in Infleqtion’s RuBECi and doubleMOT two-chamber UHV systems.

  • Pressure Isolation

    A 0.75 mm aperture helps isolate the user’s vacuum system from the higher source-cell pressures required for 2D MOT operation.

  • Source Flexibility

    Choose rubidium, cesium, or both, with up to two pre-installed alkali sources and independent electrical connections.

  • Standard Integration

    Connect through the DN16 CF interface or use Infleqtion’s available 2.75-inch adapter plate.

How It Works

From Vapor to Cold Beam

External lasers and a magnetic field gradient capture atoms from alkali vapor in a 2D MOT. A push beam directs the cold atomic beam through the differential-pumping aperture.

Explore the User Manual

  1. Generate vapor

    Drive a pre-installed dispenser with constant current to generate rubidium or cesium vapor inside the cell.

  2. Capture in a 2D MOT

    External cooling and repump beams, paired with a magnetic field gradient, capture and cool atoms in two dimensions.

  3. Add axial momentum

    Direct a push beam along the cell axis to create a 2D+ MOT and move laser-cooled atoms toward the exit aperture.

  4. Deliver cold atoms

    The 0.75 mm aperture directs atoms into the connected vacuum system while supporting differential pumping.

Specifications

CASC at a Glance

Key dimensions, interfaces, and performance values.

Specification Value
Overall size 30 × 30 × 94.6 mm
Atom sources Rb, Cs, or both
Vacuum interface DN16 (1.33 in.) CF
Clear aperture 40 × 16 mm sides; Ø10 mm end
Glass thickness 1.5 mm
Vacuum aperture (pinhole) Ø0.75 mm
Max. bakeout 225 °C
Ramp rate 1 °C/min
Typical atom flux 1 × 10^9 atoms/s*
Exit velocity 10–20 m/s axial; <1 m/s transverse*
Beam divergence 4° full angle

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