What Are the Non-Invasive Methods to See Inside Objects?

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Discussion Overview

The discussion revolves around non-invasive methods for examining the interiors of objects, particularly those encapsulated in metallic shells. Participants explore various technologies and techniques, including X-rays, ultrasound, and other forms of radiation.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants mention traditional methods such as X-rays and ultrasound for non-invasive imaging.
  • One participant suggests weighing the object and checking its center of gravity as preliminary methods.
  • There are mentions of using light, radio waves, gamma rays, and MRI as potential techniques for probing interiors.
  • Another participant emphasizes that X-rays are particularly effective for penetrating metal, while questioning the efficacy of other methods like sonic or infrared imaging.
  • Some participants propose that sonar and thermal infrared could provide insights into the object's characteristics.
  • One participant references the use of sound waves in geophysical studies, suggesting that similar techniques might apply to other objects.
  • X-ray crystallography is noted as a practical application for understanding molecular structures.

Areas of Agreement / Disagreement

Participants express differing views on the effectiveness of various non-invasive methods, particularly regarding the capabilities of X-rays compared to other techniques. There is no consensus on a single best method, and multiple competing views remain.

Contextual Notes

Some methods discussed may depend on specific conditions or the nature of the object being examined, and limitations regarding the effectiveness of certain techniques in different scenarios are acknowledged but not resolved.

Who May Find This Useful

This discussion may be of interest to individuals exploring non-invasive imaging techniques in fields such as engineering, materials science, and medical imaging.

physior
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hello!

what are the available methods that we can see inside things? obviously non invasive, ie. without actually open an item to see its inside

there is obviously X-rays, ultrasound, but are there any other technologies?

thanks!
 
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I would start by weighing the object. You can shake it and see if it rattles. Also not its center of gravity.
Of course, you can try to penetrate it with light, radio, xrays, gamma rays, etc. Either plane or CAT scans.
Checks its response to a magnetic field - changing or otherwise. MRI combines radio with magnetics.
You mentioned sonar - there's a wide variety of wavelengths.
 
Last edited:
Thanks but I had in mind something encapsulated in a metallic shell
 
X-Rays will be your best bet.
 
only xrays can penetrate metal and see the inside? no rayman, sonic, infrared, electromagnetic, etc?
 
physior said:
only xrays can penetrate metal and see the inside? no rayman, sonic, infrared, electromagnetic, etc?
Sonar might work. Thermal infrared will tell you whether it is a heat source.
You can also warm it slowly and then let it cool to discover its thermal characteristics.
 
X-rays would be the best method for understanding what's inside things a process known as X-ray crystallography is used when trying to understand what an unknown molecular structure looks like, not to mention x-rays are quite practical in terms of application.
 

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