A06_-_Scanner_Salient_Characteristics.docx

Salient Characteristics

1. Introduction The National Mine Map Repository (NMMR) requires a large-format, non-contact table scanner capable of digitizing oversized, fragile mine maps in compliance with 36 CFR 1236 Subpart E. The scanner must meet the performance requirements for permanent federal records and support the physical characteristics of historical mine maps.

The system offered must be equal to or exceed the capabilities and performance of the METIS DRS 2020 DCS.

2. Functional Requirements

2.1 Scanner Configuration

The scanner shall be a high-precision, overhead, non-contact imaging system designed to support fragile, oversized documents.

2.2 Minimum Table Size

The scanning table must have a minimum usable area of 78 × 47 inches.

2.3 Vacuum Table

The system must include a vacuum table capable of securing large, brittle materials without causing damage.

2.4 Non-Contact Capture

The imaging system must operate without direct physical contact between the sensor and the material being scanned.

2.5 Critical System Components

The scanner and its maintenance coverage shall explicitly include the following components:

· 16K CMOS imaging sensor

· DC SynchroLight lighting system

· Motorized holding/scanning table

3. Image Quality Requirements The scanner must meet all performance metrics of 36 CFR 1236.50(e)(4) at 400 DPI, validated using NARA-approved methods such as FADGI/DICE.

3.1 Optical Resolution

Minimum of 1600 PPI optical resolution, uniformly supported across the entire scanning surface.

3.2 Tone & Color Accuracy

· Tone Response (OECF ΔL*): ±5

· White Balance ΔE(ab): ≤4%

· Lightness Uniformity: ≤3%

· Average Color Accuracy (ΔE2000): ≤3.5

· 90th Percentile Color Accuracy: ≤8.75

3.3 Geometric & Optical Performance

· Color Channel Misregistration: <0.5 pixels

· Sampling Efficiency (SFR10): >80%

· MTF50: >40% and <75% of half sampling frequency

· Reproduction Scale Accuracy: ±2%

· Sharpening Modulation: <1.1

3.4 Noise

· Noise Upper Limit (Std. Dev L*): ≤2

4. Software Requirements

4.1 Core Software

Vendor shall install all required scanning and control software on a Government-furnished workstation.

4.2 Post-Processing Tools

The system must include a full software suite providing:

· Lighting correction

· Color and geometric normalization

· Image stitching

· 3D/relief rendering

· Artifact correction

· Metadata embedding

· Quality assurance tools

4.3 Software & Firmware Support

Vendor must provide, for the entire performance period:

· All software updates (e.g., METIS Scan Director, Light Inspector)

· All firmware updates, patches, and hotfixes

5. Installation & Calibration Vendor must provide:

· Delivery and installation at the NMMR facility

· Perform OEM-authorized calibration demonstrating compliance with 36 CFR 1236 performance metrics

· Validation using GoldenThread targets and OpenDICE (Government furnished)

· Written documentation of calibration results Installation must be performed exclusively by OEM-authorized personnel.

6. Training Requirements Vendor must provide OEM-authorized, on-site training for at least three (3) NMMR personnel.

Training topics shall include:

· Scanner operation

· Software workflows

· Routine maintenance and calibration

· Troubleshooting procedures Training must enable NMMR staff to independently operate and maintain the scanner and must be completed within 14 days of installation.

7. Maintenance and Service Requirements The Contractor shall provide comprehensive preventative and corrective maintenance services.

7.1 Preventative Maintenance

The maintenance agreement must include:

· 1-2 on-site preventative maintenance visits per year

· Factory-authorized inspections and calibrations

· System performance verification

7.2 Unscheduled ("Break/Fix") Maintenance

Vendor must provide:

· Diagnostics, parts replacement, and repair labor

· No refurbished, non-OEM, or grey-market parts permitted

7.3 Service Level Agreements

· Telephone support within 4 hours

· On-site technician response within 24–48 hours

· Services must occur during federal business hours (8:30 AM–5:00 PM, Monday–Friday, excluding federal holidays)

7.4 Technician Qualifications

All maintenance must be performed by factory-authorized or OEM-certified technicians.

8. Warranty The system must include a minimum three-year extended warranty covering:

· All hardware components

· Imaging sensors and lighting systems

· Software and firmware defects

· Calibration support

· Repairs performed exclusively by OEM-certified technicians

· Only new, OEM-approved replacement parts

9. Compliance The scanner must comply with:

· 36 CFR 1236 Subpart E

· 36 CFR 1236.46(b)(1) – Acceptable performance-evaluation methods

· 36 CFR 1236.50(e)(4) – Image-quality performance metrics