Could x-ray or other high energy device alter rice grains?

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Discussion Overview

The discussion centers around the potential effects of x-ray and other high-energy scanning devices on rice grains and other foods during customs inspections. Participants explore the implications of these scanning technologies on food safety and integrity.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants suggest that x-rays primarily pass through food, with only a minimal portion absorbed, which may knock electrons out of orbitals or split some molecules, but this is not enough to adversely affect food.
  • Others mention that scanning devices using lower energy electromagnetic radiation, such as infrared and microwaves, do not have sufficient energy to ionize atoms or molecules, indicating they do not damage food.
  • One participant asserts that any scanning technology used in customs is virtually harmless to food when used properly, emphasizing that damaging food would have serious consequences for companies.
  • A participant challenges the misconception that irradiation makes food radioactive, clarifying that this occurs primarily with neutron radiation, which is not applicable to the radiation used for food sanitation.
  • Another participant humorously claims that the effects of x-ray scanning on food are negligible compared to the effects of cooking.

Areas of Agreement / Disagreement

Participants generally agree that x-ray and other scanning technologies do not adversely affect food, but there are varying perspectives on the specifics of how these technologies interact with food materials.

Contextual Notes

Some assumptions about the safety and effects of different types of radiation on food remain unexamined, and the discussion does not resolve the nuances of how various scanning technologies might differ in their impact.

kenny1999
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I almost always buy food from local market but recently I want to buy some rice (and probably other foods later) overseas which will be imported through our customs, so most likely the food will be scanned through x-ray or other high energy devices that I don't know, could rice grains or other food be altered adversely after passing through those scanning devices?
 
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The X-Rays will mostly just pass right through. The small portion that is absorbed will knock some electrons out of the orbitals and perhaps split some molecules apart, but we're talking a very, very small portion. Not enough to adversely affect any food.
 
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Drakkith said:
The X-Rays will mostly just pass right through. The small portion that is absorbed will knock some electrons out of the orbitals and perhaps split some molecules apart, but we're talking a very, very small portion. Not enough to adversely affect any food.

How about other possible scanning devices in addition to x-ray? Thanks
 
kenny1999 said:
How about other possible scanning devices in addition to x-ray? Thanks
The only other scanning devices I'm aware of use lower energy EM radiation, such as infrared and microwaves, which are not of a high enough energy to ionize atoms and molecules. Thus, they don't damage the food at all.

In any case, any scanning technology used in customs is going to be virtually harmless to food when used properly. Damaging food or other items would be a serious consequence that would not go unnoticed by companies selling these products.
 
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After this process, it's still food.

Even safer than before, actually :doh:

You have nothing to fear from them being simply scanned.
 
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A common misconception is that irradiation will make the food "radioactive". Essentially this only occurs when the radiation is neutrons: either primary neutrons as from a nuclear reactor; or secondary from a daughter decay initiated by a high energy X-ray. Neither process is possible from the radiation used to sanitize food against bacteria and insect infestation.
 
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Could x-ray or other high energy device alter rice grains?

Not as much as cooking them.
 
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