Technical Intelligence Report
01
Broadband High-Transmission Fused Silica Matrix
Forensic audit confirms the integrated high-purity fused silica (Quartz) windows exhibit zero surface tracking or solarization. This optical array provides the broad-spectrum transmission required for UV-Vis-NIR spectroscopy at cryogenic base temperatures, ensuring absolute signal fidelity for luminescence or reflective diagnostic cycles.
02
Cryogenic Planar Sealing Authority
Every O-ring landing and vacuum interface has been micro-inspected for planar perfection. This vetting ensure absolute technical baseline stability for high-vacuum service down to the 1 × 10-7 Torr range. The monolithic aluminum/304SS chassis provides the mandatory thermal isolation required to maintain 4.2 Kelvin (LHe) base temperatures during long-duration data acquisition.
03
Forensic Audit: Verified NOS - "Virgin" Metallurgy
Confirmed Unissued condition (Tier 2). Forensic handling audit confirms the asset is in a "Virgin" technical state: **zero system history, mechanical witness marks, or process-induced thermal discoloration**. Internal wetted paths are mirror-clean and verified free of atmospheric pitting or Hand-Oil contamination. Externally solvent-wiped; ready for immediate spectroscopy commissioning.
0X00 // THE LINCHPIN: "OPTICAL" LEAD-TIME KILLER
Standard procurement for standalone unissued Janis SHI-series optical shells currently faces lead times exceeding 10 weeks. This audited "NOS" node is a definitive **Lead-Time Killer**, providing an immediate 4K isolation solution with "Virgin" optics. Choosing unissued NOS over used cryostat bodies eliminates condensation-etch variables; this artifact is your project's mechanical and optical insurance policy.
MANUFACTURERJANIS (LAKE SHORE)
MODEL NUMBERSHI-4-5 (SHELL)
WINDOW MATERIALFUSED SILICA (UHP)
CRYO LIMIT4.2 KELVIN (LHe)
VACUUM BASELINE1 × 10-7 TORR
MAX BAKE TEMP325 K (SEAL LIMIT)
METALLURGY DNAALUMINUM / 304SS
HELIUM LEAK RATE< 2 × 10-9 ATM-CC/S
CONDITIONNOS (UNISSUED)
QC STATUSVETTED ZERO-CYCLE
Blue Diamond Protection Protocol: ACTIVE
TOP RATED PROTECTION: This listing qualifies for Free 30-Day Domestic Returns. Per eBay Seller Protection policy for Top Rated Plus members, any item returned in a condition different from the original shipment (including but not limited to: opened OEM Purity bags (SC-01/SC-10), damaged Knife-Edges, installation witness marks, or atmospheric contamination) will result in a 50% deduction from the refund to account for the loss in technical utility and resale value.