RF FARADAY CAGE • VC-E VIBRATION ISOLATION (≤3µm/s) • AIRLOCK DOCK • CRYOSTAT RIG-IN

Quantum Data Center RF Shielded Enclosure Rig-In & Vibration Pad Audit

Engineering audit protocol for rigging multi-ton quantum dilution cryostats into RF-shielded cleanrooms: floor slab dynamic vibration criteria (VC-E), zero-magnetic hoist anchoring, and helium recovery line pass-throughs.

Vibration Floor Criterion

NIST VC-E

≤ 3.12 µm/s RMS Velocity

RF Shielding Attenuation

> 110 dB

10 kHz – 18 GHz Faraday Room

Cleanroom Airlock

ISO Class 6

Overpressure >20 Pa • N2 Purge

Invar Anchor Studs

Zero-CTE Alloy

Non-Magnetic 316L / Invar-36

Phase 1: Foundation Pad & Micro-Vibration Isolation (VC-E)

FOUNDATION

Inertia Mass Concrete Plinth Decoupling (≥50-Ton Floating Pad)

Verification of perimeter expansion joint elastomeric acoustic air gap isolating quantum pad from facility HVAC plant vibration.

Triaxial Seismometer Baseline Audit (≤3.12 µm/s between 1Hz - 100Hz)

NIST-calibrated ultra-low-noise geophones placed across pad anchor studs for 48-hour continuous ambient spectrum logging.

Non-Magnetic Stainless / Invar Anchor Embedding

Verify zero ferromagnetic inclusions in anchor bolts to prevent stray magnetic flux distortion on superconducting transmon qubits.

Phase 2: RF Shielding Integrity & Waveguide Ingress

RF ENCLOSURE

Continuous RF Door Knife-Edge Beryllium-Copper Finger Gasket Sweep

Micro-ohmmeter testing across roll-in airlock double knife-edge door contact strips to maintain >110 dB attenuation across RF spectrum.

Cutoff Waveguide Dielectric Isolation on Cryogenic Lines

Confirm honeycomb waveguide below cutoff (WBC) brass pipes on liquid helium recovery lines to prevent electromagnetic signal leakage.

Single-Point Earth Ground Interface (<0.10 Ω DC Resistance)

Heavy copper busbar connection to facility master low-noise ground grid; zero ground loops through trailer rigging hoist cables.

Phase 3: Cleanroom Air-Bearing Rig-In & Cryostat Hoisting

CRYOSTAT RIG-IN

Pneumatic Air-Caster Skates on Stainless Steel Overlay Sheet

Floating cryostat frame across cleanroom access floor with zero wheel drag and zero particulate generation during doorway transit.

Overhead High-Precision Cleanroom Hoist Load Calibration (≤0.01G)

Variable frequency drive hoist with micro-stepping inching controls to lift dilution unit into support gantry without shock.

Final Plumb & Laser Theodolite Quadrant Alignment (±0.2mm)

Verification that mixing chamber stage hangs perfectly vertical within magnetic shielding cylinder to prevent conductive heat short.

Cleanroom Rig-In Readiness

55 % READY

Plinth Vibration: VC-E COMPLIANT

RF Shielding: >110 dB VERIFIED

Air-Caster Runway: PENDING OVERLAY

Cryostat Plumb Align: HOLD POINT

Request Cleanroom Rig-In Crew

Deploy Exspeedite certified micro-vibration rigging specialists and cleanroom technicians for quantum hardware installation.