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Article summary:

1. NASA’s electron beam freeform fabrication (EBF3) technology is being evaluated to manufacture metallic parts in a space environment.

2. A near infrared (NIR) camera is used to image the melt pool and solidification areas to ensure a quality deposit.

3. This paper describes the calibration and application of a NIR camera for temperature measurement, as well as image processing techniques for deposit assessment metrics.

Article analysis:

The article is generally reliable and trustworthy, as it provides detailed information about the EBF3 technology and its components, as well as the use of NIR cameras for temperature measurement and image processing techniques for deposit assessment metrics. The authors provide evidence to support their claims, such as citing relevant research papers and providing technical details about the EBF3 system.

However, there are some potential biases in the article that should be noted. For example, the authors do not explore any counterarguments or alternative solutions to using NIR cameras for temperature measurement or image processing techniques for deposit assessment metrics. Additionally, they do not discuss any possible risks associated with using this technology in a space environment or any potential drawbacks of using NIR cameras instead of other methods of temperature measurement. Furthermore, they do not present both sides equally when discussing the benefits of EBF3 technology; instead they focus solely on its advantages without mentioning any potential disadvantages or limitations.