CR PD-R0120 DRAFT SSS.pdf

PRODUCT DESCRIPTION COMPUTED RADIOGRAPHY IMAGING SYSTEM

1. SCOPE. This Product Description (PD) provides the minimum requirements for a

Computed Radiography (CR) digital radiographic imaging system suitable for

Nondestructive Inspection of a variety of metallic and non-metallic products used in military aircraft maintenance environments, which may be located at fixed military bases or deployed to austere forward operating locations. These imaging systems shall directly digitize and process radiographic images recorded on both hard and flexible Imaging Plates

(IPs). The method of performing radiography shall be by using a storage phosphor system on both hard and flexible IPs. This PD provides for production evaluation as described herein.

2. CLASSIFICATION. The system described in this PD is classified as a complete CR system, employing state of the art photostimulable phosphor IPs as the collection media for radiographic data used for the purpose of nondestructive inspection/testing/evaluation. An automated, programmable method of extracting the data and subsequently erasing the IP;

and a method for displaying and storing the images shall be provided.

2.1. This PD contains system specifications necessary to meet Department of Defense (DoD) requirements for radiographic detection of foreign objects, water entrapment, and alignment (i.e., general purpose use), fatigue crack detection, and welder certification.

2.2. The CR system shall be a table-top, portable CR system with Integral Eraser capable of processing industry standard flexible IPs from 5 x 7 inch to 14 x 17 inch, as well as custom sized flexible IPs as small as 2 x 4 inch and Original

Equipment Manufacturer (OEM)-specific hard cassettes. Metric equivalent IP sizes are acceptable.

3. SYSTEM. The CR system described in this document shall be a turnkey system and shall include the following:

3.1. Flexible phosphors IPs.

3.2. Flexible exposure cassettes, and if required, rigid cassettes or adapters for processing.

3.3. Hard cassette for IPs.

3.4. Scanner (Image Reader/Erasure Unit/Processing Cassettes).

3.5. System Controller/Workstation.

3.6. Display Monitor.

3.7. Software for image acquisition, image viewing, database, data archiving, data sharing, and printing.

3.8. Hard-shell, appropriately padded, shipping containers/carrying cases suitable for storing and shipping the unit with accessories for all system components and accessories.

3.9. Process control devices.

3.10. Large format printer.

4. REQUIREMENTS AND SALIENT CHARACTERISTICS. The CR system shall have the following requirements and salient characteristics as a minimum unless specified in the solicitation:

4.1. The CR System. It shall be capable of producing radiographic images equal to or exceeding the general radiographic requirements of the American Standards for Testing and Materials specification E1742, Standard Practice for Radiographic Examination.

The CR System shall conform to the following requirements:

4.1.1. Environment:

4.1.1.1. The CR system shall be capable of operating in an industrial environment. Suitable mechanisms shall be incorporated to protect hardware, including IPs, from damage due to airborne particulates. All proposals shall describe these protective measures and testing by an independent laboratory to MIL-STD-810H, paragraph 510.7, low velocity sand and dust, or equivalent. Prior testing accomplished to a previous revision of MIL- STD-810 is acceptable, but shall be identified in the proposal.

4.1.1.2. The CR system shall be capable to perform to the requirements of this

PD throughout temperatures from 50 to 110 degrees Fahrenheit at 95% relative humidity, and from 0 to 7,000 feet above sea level. All proposals shall include testing to MIL-PRF-28800F, paragraph 3.8.2, or equivalent, testing by an independent laboratory. Prior testing accomplished to a previous revision of MIL-PRF-28800 is acceptable, but shall be identified in the proposal.

4.1.1.3. The CR system shall be capable of being stored from 0 to 150 degrees

Fahrenheit. All proposals shall include testing to MIL-PRF-28800F, paragraph

3.8.2.1, or equivalent testing by an independent laboratory. Prior testing accomplished to a previous revision of MIL-PRF-28800 is acceptable, but shall be identified in the proposal.

4.1.1.4. The CR system shall be capable of operation when supplied with 100-

250 Volt Alternating Current – 50 or 60 Hertz (100-250 VAC – 50/60 Hz) automatically selected.

4.1.2. Performance:

4.1.2.1. The CR system shall demonstrate system performance through successful completion of any of the production evaluations described in section 5.9 at the option of the Cognizant Engineer.

4.1.2.2. The CR system shall be capable of scanning and erasing a minimum of 15 each 14 x 17 inch IPs per hour at 50 micron sampling resolution.

4.1.3. Size and weight. The complete CR system in shipping cases shall not exceed a volume of 125 cubic feet, with no dimension larger than five (5) feet. The complete

CR system in shipping cases shall weigh no more than 500 pounds.

4.2. Hardware. The CR system shall contain the following sub-components:

4.2.1. Imaging plates and hard and flexible exposure cassettes. The types and generation of included IPs shall be identified in the deliverable CR Operational and Technical

Manual and Illustrated Parts Breakdown. All flexible IPs shall have a minimum bend radius of three (3) inches or smaller without damage. Hard exposure cassettes shall not have metallic screens unless otherwise specified. The following IPs and cassettes shall be included.

4.2.1.1. General purpose IPs. The following general purpose IPs shall be included:

Two (2) flexible 14 x 17 inch IPs, and two (2) flexible 8 x 10 inch IPs.

4.2.1.2. High resolution IPs. The following high resolution IPs shall be included:

Four (4) 14 x 17 inch flexible IPs, two (2) flexible 8 x 10 inch IPs, and two (2) flexible 5 x 7 inch IPs.

4.2.1.3. Ultra high resolution IPs. The following ultra high resolution IPs (Note these are often referred to as “blue” IPs.) shall be included: Two (2) flexible 8 x 10 inch IPs, and two (2) flexible 5 x 7 inch IPs.

4.2.1.4. Flexible cassettes. Seven (7) 14 x 17 inch, seven (7) 8 x 10 inch, and five

(5) 5 x 7 inch flexible cassettes.

4.2.1.5. Hard cassettes. Six (6) 14 x 17 inch, five (5) 8 x 10 inch, and three (3) 5 x 7 inch hard cassettes with integral lead back screens. Two (2) 14 x 17 inch, two

(2) 8 x 10 inch, and one (1) 5 x 7 inch hard cassettes with integral front and back lead screens of 0.005 or 0.010 inch, and permanent labeling on the cassette indicating front and back lead screens. Hard cassettes shall be capable of inserting the IP directly into the scanner, as applicable to the scanner.

4.2.2. Manufacturer’s recommended cleaning system to include fluid, wiping cloths, etc. necessary to clean 100, 14x17 inch IPs shall be included.

4.2.3. Manufacturer’s one-time recommended maintenance kit to include all hardware, supplies, tools, etc. shall be included.

4.2.4. Scanner (Image reader/erasure unit). Drum scanners are specifically excluded from consideration due to USAF history of operational damage to Imaging Plates.

Drum scanners require the imaging plate to be placed active side down on a half-cylinder and then mechanically moved over the laser-scanning window. Any particulates (e.g., dust, sand, etc.) on the drum cylinder or imaging plate will cause scratches to the imaging plate, causing an unacceptable decrease in the operational life of the imaging plate and increase in life-cycle costs.

4.2.4.1. The scanner shall operate with current USAF inventory of commercially-available IPs, including prior-generation IPs.

4.2.4.2. The scanner shall be capable of automatically reading and erasing the IP in a single operation.

4.2.4.3. The scanner shall read the IP at a 14 Bit minimum gray scale depth.

4.2.4.4. The scanner shall feature integral diagnostics and communication of error conditions with the workstation.

4.2.4.5. The scanner shall be capable of acquiring data from the IP from at least

50 to 100 micron sampling.

4.2.4.6. The scanner shall be capable of handling “cut” IPs (i.e. IPs of non-rectangular, unique shapes). It is acceptable to use a special or custom adapter to scan “cut” IPs and a minimum of two adapters shall be included.

4.2.4.7. Cassettes required for processing shall be included as required. If the processing cassette is not integral to the scanner, a minimum of two (2) processing cassettes shall be provided to accommodate the IP sizes listed in

5.2.1. Any special tools required to insert/extract IP in cassette or hard cassette in scanner shall be included.

4.2.4.8. The scanner shall include an erase function that may be operated independent from the scan/erase cycle. The scanner erase function shall be capable of erasing in a single pass, an ultra high resolution IP to less than 1% of full scale pixel value when at least 50% of the IP area is exposed to produce at least 80% full scale pixel value.

4.2.5. System controller/workstation.

4.2.5.1. The workstation shall include a CPU, keyboard, mouse, and high resolution monochrome display monitor. The workstation hardware shall be capable of supporting the overall CR system functionality and technical requirements (i.e.

I.O, processor speed, video graphics, memory, etc.). The workstation shall also contain a separate connection for a VGA projector for training, HMDI, and color display monitor for file maintenance; this projector or monitor is not a contract deliverable. Hardware type software keys or dongles shall not be required for workstation functionality.

4.2.5.2. The workstation shall serve as the controlling programming device and driver system for the scanner (Image Reader/Eraser Unit) and shall serve as a viewing device to view, manipulate, interpret, and store images.

4.2.5.3. The workstation shall include:

4.2.5.3.1. Internal dual-format DVD/CD writer where content can be viewed on other DVD-ROM drives, DVD players and DVD recorders.

4.2.5.3.2. Minimum of four (4) USB ports available for transferring data to/from external devices.

4.2.5.3.3. Two (2) internal hard drives in a RAID 1 (mirrored) configuration, each with a minimum of two (2) terabyte (2 TB) storage capacity. Separate hard drive partitions for system files, system recovery, and image storage may be used.

4.2.6. Display monitor. The CR system shall contain one (1) 21 inch minimum diagonal measurement, flat panel, five (5) mega pixel (minimum resolution) monochrome display monitor for viewing the computed radiograph. Minimum resolution shall be

2560 by 2048 pixels. Additional monitors shall be included if necessary to operate the system.

4.3. Software.

4.3.1. Operating system software. The system controller/workstation shall utilize a government-provided Windows 10 (64-bit) Operating System (OS). This OS is a modified version of the Secure Host Baseline (SHB) from the Defense Information

System Agency (DISA). The OS has been modified to function on a non-networked, stand-alone computer and has built-in security features. The government shall provide technical support of the OS to the OEM for integration, testing, and fielding of application software for CR functionality.

4.3.2. Application software. All delivered imaging and scanner control software shall be of the same version/build during the duration of the contract. All software updates made by the manufacturer during the duration of the contract shall be included at no additional charge. All proposals shall include detailed recommended procedures for maintaining configuration control of software. All software updates shall be coordinated with the Cognizant Engineer.

4.3.3. Freeware, shareware, and open source software. Software shall not use any freeware or shareware. Software shall avoid use of open source software. If open source software is used, it shall be supported with a Configuration Management Plan and Support Plan.

4.3.4. High level vulnerabilities. Software shall not have any high level vulnerabilities as reported in the NIST National Vulnerability Database (https://nvd.nist.gov/vuln) concerning Common Vulnerability and Exposures (CVEs).

4.3.5. Root directory. Software shall not write to the system root directory. Functionality of the application software shall not require administrative privileges.

4.3.6. Adobe Flash. Software shall not use Adobe Flash.

4.3.7. Self-signed certificates. Software shall not use self-signed certificates.

4.3.8. Foreign software. Software shall not use foreign software of any kind.

4.3.9. Image acquisition software.

4.3.9.1. Shall provide a means to record pertinent data related to the image including:

4.3.9.1.1. Shall have the ability to record and organize file data per ASTM

E2339 and E2738, (DICONDE). The proposal shall include a

Conformance Statement that accurately describes DICONDE implementation. Any deviations from DICONDE standards shall be identified in the proposal.

4.3.9.1.2. Shall have the ability to record technique information including but not limited to kV, mA, time, source-to-detector distance, and general notes.

4.3.9.1.3. Shall automatically record DICONDE data including but not limited to scanner settings, date/time, and operator.

4.3.9.1.4. This metadata shall be automatically recalled with the image during subsequent reviews.

4.3.9.1.5. Shall activate the start of the Read/Erase cycle.

4.3.10. Image analysis software. The CR system image analysis software shall be capable of leveling the image in no more than two (2) operations. All image manipulations and calculations shall be conducted with at least 14-bit grayscale pixel depth. Image analysis software shall provide the following tools as a minimum:

4.3.10.1. Window/level. Ability to manually adjust the Window (contrast) and Level

(brightness).

4.3.10.2. Pan. Ability to manually pan the image.

4.3.10.3. Magnification.

4.3.10.3.1. Ability to manually adjust the magnification (zoom) up to a minimum of 400%, including the ability to display the image at

1:1 pixel mapping.

4.3.10.3.2. Ability to display a thumbnail view indicating the displayed portion of the image relative to the entire image when using digital magnification.

4.3.10.3.3. Ability to display the digital magnification (zoom) level.

4.3.10.3.4. Ability to magnify an area of interest with a “floating” magnifier tool to 300% magnification.

4.3.10.4. Simultaneous viewing. Ability to display at least four (4) images simultaneously with independent software feature control of each image.

4.3.10.5. Gray value readout. Ability to measure and display the gray scale value

(pixel value) of individual pixels.

4.3.10.6. Measurement.

4.3.10.6.1. Ability to obtain calibrated measurements in linear, area, and angle, with user selectable metric or English format, with the ability to compensate for any geometric enlargement.

4.3.10.6.2. Ability to generate a region of interest (ROI). This tool shall display the size of the ROI (e.g. x pixels by y pixels), and as a minimum display the statistical mean, standard deviation, and signal-to-noise ratio of the pixel values in the region of interest.

4.3.10.6.3. Ability to generate a histogram of pixel values (gray scale value) along a line or ROI tool providing at a minimum, minimum and maximum pixel value, average pixel value, and standard deviation of pixel values.

4.3.10.6.4. Ability to generate a line profile tool capable of displaying the pixel values along a user defined line as a graph/histogram. The line profile tool shall have a user adjustable width (from 1 to 100 pixels in

1 pixel increments), user selectable axis and user adjustable length, pixels, or distance. The tool shall be capable of displaying the spatial resolution measurement calculated as the average modulation depth

(percent dip) on USAF approved line pair gauges in the ASTM E2445

Type II CR Test Phantom (See section 5.2 Process Control Devices) using the below equation.

𝐴𝑣𝑔. 𝑃𝑒𝑟𝑐𝑒𝑛𝑡 𝐷𝑖𝑝 = 𝐴𝑣𝑔 𝑃𝑒𝑎𝑘 − 𝐴𝑣𝑔 𝑉𝑎𝑙𝑙𝑒𝑦

𝐴𝑣𝑔 𝑃𝑒𝑎𝑘 − 𝐵𝑎𝑠𝑒𝑙𝑖𝑛𝑒

Figure 1. Calculation of Average Percent Dip

4.3.10.6.5. Ability to generate a Signal to Noise Ratio (SNR) tool, based on

ASTM E2445, which automatically places four (4) 64 pixel x 64 pixel

(4096 Pixels) region of interest (ROI) boxes at the center of four quadrants that intersect at 90 degrees and divide all IP sizes equally. The SNR tool shall calculate and display the SNR of each of the four (4) ROIs and one (1) average SNR value calculated from the four (4) ROI measurements. The tool shall allow the user to manually move the placement of the SNR boxes to adjust for IP artifacts, but shall restrain the SNR box to their respective quadrants.

4.3.10.7. Image manipulation and enhancements.

4.3.10.7.1. Ability to initially display images without image enhancements and then allow the user to apply filters, edge enhancements or contrast enhancements.

4.3.10.7.2. Ability to display the image in either negative or positive polarity.

4.3.10.7.3. Ability to change image display orientation, including the ability to mirror and rotate the image at 90 degree intervals.

4.3.10.7.4. Ability to include inspector generated annotations on the image including but not limited to text, circle/box outlines, and arrows.

4.3.10.7.5. Ability to display any selected DICONDE data on the image.

4.3.10.7.6. Enable the user to select image processing filters for inspection.

4.3.10.7.7. Ability to display the image menu filters applied to the image.

4.3.11. Display monitor software.

4.3.11.1. Visual test pattern. Monitor software shall include the SMPTE RP133 test pattern, and the ability to display the test pattern on the high resolution monochrome display monitor.

4.3.11.2. Self-diagnostic capability. Monitor software shall include self-diagnostic software, including but not limited to, display brightness checks on the high resolution monochrome display monitor.

4.3.12. Printing software.

4.3.12.1. The CR system shall have the ability to print to the included large-format printer described in paragraph 6.4, with both positive and negative formats, of various sizes and up to at least 14 x 17 inch to include a 1:1 scale.

4.3.12.2. The CR system shall have the ability to print from typical office laser printers, such as the Hewlett-Packard Laserjet series; as well as other specialty

DICONDE or DICOM (Digital Imaging and Communications in Medicine) compatible printers offered in commercial CR systems at no additional cost to the government.

4.4. Database, data archiving and data sharing. The CR system database shall provide for user selectable display of DICONDE tags and search and sorting of images by selectable DICONDE tags.

4.4.1. Filing structure. The CR system shall be able to logically search image inventory for image selection and retrieval.

4.4.2. File format.

4.4.2.1. DICONDE. Image files shall be in a DICONDE compliant file format per

ASTM E2339 and ASTM E2738. Any deviations shall be identified in the proposal.

4.4.2.2. DICONDE headers. The following data shall be stored in the DICONDE

Headers:

4.4.2.2.1. CR system manufacturer and model

4.4.2.2.2. Image analysis software and version number

4.4.2.2.3. Imaging plate serial number or other unique identifier

4.4.2.2.4. Pixel pitch (in microns)

4.4.2.2.5. Unit Name (Nomenclature)

4.4.2.2.6. Aircraft identification

4.4.2.2.7. Component identification

4.4.2.2.8. Technique parameters (kV, mA, time, distance)

4.4.2.2.9. Other notes as required

4.4.2.2.10. Date of Inspection

4.4.2.2.11. Inspecting Activity

4.4.2.3. Other file formats. Image files shall be able to be filed and exported in

PNG, JPEG, and TIFF.

4.4.3. Data Saving/Archival.

4.4.3.1. Software shall retain the original (raw) data. The original data shall be capable of being re-processed and re-displayed using the same or another process algorithm without having to take another radiographic exposure.

4.4.3.2. The full bit depth of the image, as read from the IP, shall be retained in the saved image.

4.4.3.3. Digital Annotation shall not permanently alter the nature of the image or hinder interpretation of an area within the image.

4.4.4. Data Sharing.

4.4.4.1. The CR system shall be capable of saving and retrieving data directly to/from the system’s hard drive, as well as CDs, DVDs, and external hard drives.

4.4.4.2. The CR system shall be capable of exporting images to other

DICONDE Compliant workstations.

4.4.4.3. Images exported to other DICONDE network shall be able to be viewed, manipulated, interpreted, and stored to meet global mission demands.

4.4.4.4. Users shall be able to transmit DICONDE images through DICONDE network without loss of image resolution when viewed at comparable display screens.

4.4.4.5. The CR image analysis software shall have the ability to allow viewing of third-party DICONDE images, without the requirement of having a system workstation.

4.4.5. External image viewing software. Software for viewing on a non-workstation shall be provided.

4.4.5.1.1. Image viewing shall include the minimum tools: window/level, magnification, and pan, line pair, and SNR tool.

4.4.5.1.2. No special, proprietary software or workstation shall be required to operate the viewing software. Viewing software shall be self-executing either from portable media or by copying to a third-party personal computer.

4.4.5.1.3. Viewing software shall be created or provided on a CD/DVD or USB interfaced mass storage device.

4.4.6. Diagnostics. The software shall enable the user to perform system diagnostics.

4.4.7. System recovery software. A system recovery disk(s) shall be included to return the system to an as delivered software configuration. A recovery partition on the hard drive may be used.

4.5. DICONDE image. A DICONDE compliant image of the line pair gauges of the Process

Control Phantom described in paragraph 5.2 shall be transmitted to the AF NDI Office at time of proposal submission to confirm compliance. File size is limited to 10MB.

Alternatively, the proposal can include a website URL to download the image file, or a

CD-ROM may be sent to the Cognizant Engineer. Notional data shall be stored under the DICONDE headers.

5. Accessories

5.1.Shipping Containers. The CR system shall include hard-shell carrying cases and be suitable for storing and shipping the unit with accessories. Carrying cases shall be appropriately padded to ensure potential shipping damage to the complete systems would be minimized. All proposals shall include testing conducted IAW the procedure in MIL-

PRF-28800F, paragraph 4.5.5.4.2, or equivalent, for a 46 centimeter (18 inch) drop in the hard cases, by an independent laboratory. Prior testing accomplished to a previous revision of MIL- PRF-28800 is acceptable, but shall be identified in the proposal. Cases shall have wheels and handles. (Note - it is desirable for cases be of similar size to facilitate stacking & palletizing for shipment.)

5.2.Process control devices. The CR System shall include a Process Control Phantom. NSN

6635-01-555-4372 (CAGE 6KCS9, ASES LLC, DBA FIELD AEROSPACE, CP 405-

219-3420, http://www.fieldaero.com, P/N A0295004002) is the initial configuration and drawings are available upon request. It is available commercially at CAGE 3DF34, NDT

SUPPLY, CP 913- 685-0675, http://ndtsupply.com/kowotest-usaf-cr-phantom-panel.html, P/N RT-KT-CR-Phan- USAF. Other suppliers require approval by the

Contracting Officer.

5.3.Image quality indicators. The CR System shall contain the following Image Quality

Indicators: a full ASTM E-1742, Annex A1 plaque-type IQI set meeting the requirements of NSN 6635-00-185-1983, P/N ASTM E1742 (Air Force Master Set with AL, CU, FE, MG, SS, TI), and ASTM E-747 wire IQI sets A-C, in aluminum, copper, and stainless steel, and A-B in Inconel and titanium.

5.4.Large format printer. A large-format printer, capable of replicating a 14 x 17 inch radiograph images on 14 x 17 inch paper shall be included. The printer shall have a minimum spatial resolution of 300 pixels per inch. Throughput shall be a minimum of fifteen (15) copies per hour of 14 x 17 inch size. Fifty (50) sheets of 14 x 17 inch paper shall be included.

Table 1

CR System Component Summary

Component Description Quantity Paragraph

Imaging plate General Purpose 14 x

17 inch

2 4.2.1.1

Imaging plate General Purpose 8 x

10 inch

2 4.2.1.1

Imaging plate High resolution 14 x

17 inch

4 4.2.1.2

Imaging plate High resolution 8 x

10 inch

2 4.2.1.2

Imaging plate High resolution 5 x 7 inch

2 4.2.1.2

Imaging plate Ultra High

Resolution 8 x 10 inch

2 4.2.1.3

Imaging plate Ultra High

Resolution 5 x 7 inch

2 4.2.1.3

Flexible cassette 14 x 17 inch 7 4.2.1.4

Flexible cassette 8 x 10 inch 7 4.2.1.4

Flexible cassette 5 x 7 inch 2 4.2.1.4

Hard cassette 14 x 17 inch 6 4.2.1.5

Hard cassette 8 x 10 inch 5 4.2.1.5

Hard cassette 5 x 7 inch 3 4.2.1.5

Hard cassette with lead screens

14 x 17 inch 2 4.2.1.5

Hard cassette with 8 x 10 inch 2 4.2.1.5 http://www.fieldaero.com/ http://ndtsupply.com/kowotest-usaf-cr-phantom-panel.html http://ndtsupply.com/kowotest-usaf-cr-phantom-panel.html

Table 1

CR System Component Summary

Component Description Quantity Paragraph lead screens

Hard cassette with lead screens

5 x 7 inch 1 4.2.1.5

IP cleaning system Fluid, wiping cloths, etc. for 100 IPs

1 4.2.2

Maintenance kit Maintenance kit 1 4.2.3

Scanner Image

Reader/Erasure Unit

1 4.2.4

Cut IP adapter Scan cut IPs 2 4.2.4.6

Processing cassette Scanner cassette 2 4.2.4.7

Workstation Scanner control and file imaging

1 4.2.5

Display monitor Workstation monitor 1 4.2.6

Software Software for system operation and file imaging

1 4.3, 4.4

Process control images

Process control device image

1 4.5, 8.2

Shipping containers System shipping containers

1 set 5.1

Process control device

Process Control

Phantom. NSN 6635-

01-555-4372

1 5.2

Image Quality

Indicators

ASTM E-1742

plaque-type penetrameter set, NSN 6635-00-185-

1 set 5.3

Image Quality

Indicators

E-747 wire IQI sets 1 set 5.3

Printer Image printer 1 5.4

ASTM E2445 report Report and images 1 6.0

Manual Operation and maintenance manuals, paper and electronic

1 ea 8.1

Recovery disk System recovery software

1 8.3

DVD Hardware and software familiarization

1 8.4

Market acceptability Report/statement 1 9

6. ASTM E2445-14 Report. A report based on ASTM E2445-14 evaluations along with images used for evaluation shall be provided using a production system and IPs. The following apply to this report.

6.1.The X-ray generator shall have a focal spot between 1.0 and 1.5 mm (EN12543) in one direction.

6.2.A Type II CR phantom shall be used where applicable.

6.3.Tests shall be performed for low-energy applications.

6.4.Tests shall be performed using one (1) IP from two (2) different production lots or batches for each IP type.

6.5.Tests defined in ASTM E2445 8.1.1.1 through 8.1.1.12 shall be performed using high resolution IPs supplied per paragraph 5.2.1.2 unless otherwise noted. Tests 8.1.1.1 through 8.1.1.11 shall be performed per 8.2. Tests in 8.1.1.12 for SNR shall be performed per 8.4.

6.6.Testing defined in ASTM E2445 8.1.1.2 shall be performed using software tools described in paragraph 5.3.2.6.4. This test shall be performed using high resolution IPs supplied per paragraph 5.2.1.2 and ultra high resolution IPs supplied per paragraph 5.2.1.3.

6.7.Testing defined in ASTM E2445 8.3.1.1 shall be performed five (5) times using a 14 x 17 inch high resolution IP supplied per paragraph 5.2.1.2.

6.8.Testing defined in ASTM E2445 8.4.2 shall be performed using software tools described in paragraph 5.3.2.6.5. This test shall be performed using high resolution IPs supplied per paragraph 5.2.1.2 and ultra high resolution IPs supplied per paragraph 5.2.1.3.

6.9. The system shall meet the following from ASTM E2445 9.3.

6.9.1. Basic spatial resolution of 5 lp/mm or better and a minimum SNR of 200 for high resolution IPs.

6.9.2. Basic spatial resolution of 6 lp/mm or better for ultra high resolution IPs that demonstrate a minimum SNR of 160; 7 lp/mm or better for ultra high resolution IPs that demonstrate a minimum SNR of 140.

6.9.3. Sections 9.3.1 and 9.3.3 through 9.3.9.

7. Production Evaluation. At the discretion of the Cognizant Engineer, The CR system (i.e.

scanner, workstation, IPs, display monitor) shall pass any of the production evaluations specified as follows using an Air Force approved X-ray apparatus. Final image evaluation shall be performed without digital image processing (software filters).

7.1. Achieving spatial resolution, SNR, and %EPS for delivered IPs noted in Table 2.

Table 2. Spatial Resolution (Visual) Requirement based on EPS (or SNR) Performance

7.2. Operational verification of the SNR tool and line pair tool described in paragraphs

5.3.8.6.4 and 5.3.8.6.5. All high resolution and ultra high resolution IPs supplied shall be tested and meet or exceed the values in Table 2. IPs having known SNR and line pair values from the AF inventory shall be tested with the SNR and line pair tools.

7.3. Successful completion of T.O. 1B-52H-36, wing trailing edge flaptrack inspection by scanning cut IPs and visualizing the area of interest according to the T.O. and

IP Type Line profile tool Minimum

SNR (SNR

software tool) High resolution 5.0 200

Ultra high resolution

6.0 160

7.0 140 the 2-2T hole (or wire equivalent) in the image quality indicator in the area of interest.

7.4. Successful completion of T.O. 1F-16A-36, wing internal spar, wing tip rib, and/or front spar by visualizing the area of interest according to the T.O. and the 2-2T hole (or wire equivalent) in the image quality indicator in the area of interest.

7.5. Successful completion of T.O. 1T-38C-36 wing spar and ribs by visualizing the area of interest according to the T.O. and the 2-2T hole (or wire equivalent) in the image quality indicator in the area of interest.

7.6. Successful completion of T.O. 1F-15A-36, tip closure rib (P/N 68A115105, without straps) for cracks, L/R first ramp rib support (P/N 68A327122), and L/R horizontal stabilator inboard leading edge rib (P/N 68A210130) for cracks by visualizing the area of interest according to the TO and the 2-2T hole (or wire equivalent) in the image quality indicator in the area of interest.

7.7. Successful radiographic inspection of a government owned welder certification tube butt joint weld specimen that contains porosity weld defects using existing T.O. 00-25-

252 procedures by visualizing defects according to the T.O. and the 2-2T hole in the image quality indicator in the area of interest.

7.8. Successful radiographic inspection of government owned fatigue crack specimens, imaging 5 of 15 cracks using high resolution IPs.

8. DOCUMENTATION.

8.1. One (1) paper copy of the commercial operation and maintenance instructions, including calibrations procedures and adjustments, as applicable, shall be shipped with each system. An electronic copy shall be loaded on the workstation. All documentation shall be releasable for third-party repairs. A draft copy shall be provided with the production evaluation article for engineering approval. Two (2) paper and two (2) electronic copies of the final version shall be sent to the USAF Equipment Specialist and Cognizant Engineer. The CR System’s Operation and Technical Manual shall as a minimum include:

8.1.1. CR System Technical Operation and Maintenance.

8.1.2. CR System Illustrated Parts Breakdown including compatible IPs available commercially.

8.1.3. Service and Calibration Maintenance Schedule Requirements.

8.1.4. A listing of all available accessory items & services, warranty information, and Vendor/Contractor’s Point of Contact.

8.1.5. See DI-TMSS-80527A and DI-MISC-80557 for additional information.

8.2. Radiographic images of the serialized process control devices described in paragraph 6.2, which are actually delivered with each system, shall be included on the workstation to document the manufacture’s quality control processes. The image shall contain serial numbers of the process control devices, the workstation, scanner, and date formed using metallic lead letters & numbers, or hand-scribed on metallic lead foil.

8.3. A system recovery disk(s) shall be included to return the CR system to an as delivered software configuration. A recovery partition on the hard drive may be used.

8.4. One (1) Digital Video Disk (DVD) providing hardware and software familiarization shall be included with each system. Two additional copies of each DVD shall be sent to the Contracting Officer for delivery to the Equipment Specialist and Cognizant

Engineer.

9. MARKET ACCEPTABILITY. All of the following market acceptance criteria are necessary to document the quality, reliability, and supportability of the product to be provided under this specification.

9.1. The company producing the item must have been producing CR systems for at least the past three (3) years.

9.2. The company must have sold the basic commercial system in the industrial market for a minimum of two (2) years.

9.3. The company must have sold at least 200 instruments similar to the instruments being offered, with no major defects within the last two (2) years. A major defect is a defect, which affects the performance of the instrument and requires an engineering change to the instrument’s original configuration in order for the instrument to perform the requirements of this document.

9.4. Instrument repairs shall be provided in the contiguous U.S. and shall have an average repair time of two (2) calendar weeks or less.

9.5. Data shall be provided showing the system is capable of operation for at least 1500 hours in a one (1) year period with no major repairs for 50 systems.