IMAGE SOURCE AND REUSE RECORD

Title: Printed Wiring Board Coupon Inspection
Source work: Implementation of NASA Materials and Processes Requirements at the Goddard Space Flight Center
Author: Charles E. Powers, NASA Goddard Space Flight Center
Publication date: 2009-07-23
Source location: PDF page 11, original embedded JPEG image xref 57
Credit: NASA / Goddard Space Flight Center
Copyright status reported by NTRS: Work of the US Gov. Public Use Permitted.
NTRS API determinationType: GOV_PUBLIC_USE_PERMITTED
NTRS API containsThirdPartyMaterial: false
Document-plate extraction: The full original embedded JPEG slide is retained. The complete lower-left micrograph rectangle was extracted from the slide at source-image pixel box (350, 1625, 950, 2075), top-left origin, right/bottom exclusive, to a 600 x 450 PNG. No resizing, retouching, color change, new arrow, mark removal, or photo-content change was performed. All original arrows are retained. PNG pixels were verified identical to the decoded source rectangle. This records the document-plate extraction, not a claim that the output file is the original JPEG.

Source URI (plain text):
https://ntrs.nasa.gov/citations/20090027819
Original PDF URI (plain text):
https://ntrs.nasa.gov/api/citations/20090027819/downloads/20090027819.pdf
NASA STI reuse-policy URI (plain text):
https://sti.nasa.gov/disclaimers/

The source page and metadata contain no third-party photo credit or copyright restriction for this slide. NASA STI states that unmarked photographs and documents may be reproduced without further NASA permission, while third-party rights must be respected. NASA should be acknowledged as the source. No endorsement of this website, its products, or its services by NASA or the U.S. Government is implied.

The bottom micrograph is described in the original source as a PWB coupon metallographic cross section showing missing internal and external annular rings; the original arrows are retained. The upper photographs are bare-board and assembled-board examples, not identified as test coupons.

This image is a coupon through-hole microsection from a source annular-ring defect example. It is not an APT specimen and does not establish a universal acceptance limit. The source does not provide dimensional or impedance measurements for this photograph.