0.2m 0.3m to 2.4m 1.2m Square Shape Radiation Protection Lead Glass Instrument

Jovvi Lead Glass for X-ray, CT, SPECT, PET‑CT & Nuclear Medicine – Version 4 (Cost‑Effectiveness & Life Cycle Analysis)

1. Quality – The True Cost of “Cheap" Lead Glass

Quality directly impacts total cost of ownership (TCO). Lower‑priced lead glass often hides four long‑term expenses:

Jovvi nuclear‑grade glass maintains >80% light transmittance for >15 years under typical SPECT/CT workloads, while generic glass may drop to <70% within 5 years due to browning.

2. Application Scenarios – Matching Shielding Grade to Actual Dose Exposure

Over‑specifying increases cost; under‑specifying creates safety risks. Jovvi provides a dose‑based selection matrix:

*Workload measured at 1 m from source, normalized to 140 keV equivalent.

Case example: A hospital running 40 CT patients/day (120 kVp, 300 mAs each) plus 20 SPECT studies (⁹⁹ᵐTc, 25 mCi each) falls into the 150–300 range → Jovvi recommends 2.8 mm Pb monolithic glass, not 3.5 mm, saving ~18% on material cost without compromising safety.

3. Production Assurance – TCO Guarantees Beyond Initial Price

Jovvi’s production system is designed to minimize lifecycle costs through four guarantees:

3.1. 15‑Year Anti‑Browning Guarantee (Nuclear Grade)

• Accelerated aging test: 500 hours at 1 Gy/hour (⁶⁰Co gamma) → ΔE < 3.0

• If discoloration exceeds ΔE = 5.0 within 15 years under normal use, Jovvi provides free replacement (pro‑rated after year 10)

3.2. Breakage Warranty During Installation

• First‑time breakage caused by mishandling (not willful damage) – one free replacement within 60 days of delivery

• Industry standard typically excludes installation breakage entirely

3.3. Attenuation Re‑test Service

• At year 5 and year 10, Jovvi offers optional on‑site or laboratory re‑certification (140 keV and 511 keV) at 50% of original test cost

• Allows hospital to maintain regulatory compliance without buying new glass

3.4. Trade‑in Program

• When upgrading from ≤2.5 mm Pb to ≥3.5 mm Pb, Jovvi accepts old panels for material recycling and offers 15% credit toward new purchase

• Lead glass is 100% recyclable (lead oxide recovered via smelting)

4. Cost Comparison – Jovvi vs. Generic Lead Glass (5‑Year TCO)

Assumptions: SPECT control room window, 1200*800 mm, 2.8 mm Pb equivalent.

Generic glass is cheaper upfront but becomes more than twice as expensive over 5 years due to browning replacement and downtime.

5. Procurement Recommendation for Nuclear Medicine

For departments running >2,000 procedures/year (CT + SPECT + PET‑CT combined), Jovvi recommends:

1. Primary control booth windows – 2.8–3.0 mm Pb monolithic (best optical clarity)

2. Secondary viewing windows (hallways, corridors) – 2.0–2.3 mm Pb (cost‑optimized)

3. Hot lab viewing ports – 2.5 mm Pb with anti‑reflection coating (fine motor tasks)

4. PET‑CT – Composite window (2.5+10mm acrylic+2.5) rather than 5 mm monolithic (40% lighter, 25% lower cost, better 511 keV attenuation)

Return on investment: Jovvi’s premium price (typically 30–40% above generic) pays back within 18–24 months through avoided replacements and downtime.