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A man changed a scanning electron microscope (SEM) into a transmission electron microscope (TEM). This happened in a video shared online.
The SEM usually looks at a surface. It uses electrons that bounce off the sample. The TEM works differently. It uses electrons that pass through the sample. This change is not new. People can use simple adapters to make this change. But these adapters can be expensive.
The man faced a problem with space. He needed to make sure the parts inside did not touch the sample holder. He made a thinner sample holder from aluminium. This gave him more space to work.
After testing, he found a problem with the electron shield. It did not block secondary electrons well. He fixed this, and the images improved. He then looked at mosquito wings and saw details inside them.
His next goal is to use the TEM to look at cells. This will need more work to prepare the cells.
Test Your Understanding
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How much do you know?
What is the main function of a scanning electron microscope (SEM)?
To look inside samples
To look at surfaces
To look at living cells
To look at large objects
How does a transmission electron microscope (TEM) work?
It uses bouncing electrons
It uses electrons that pass through the sample
It uses X-rays
It uses visible light
What material did the man use to create a thinner sample holder?
Plastic
Steel
Aluminium
Copper
What problem did the man face regarding space?
The sample was too big
The parts inside touched the sample holder
There was not enough light
The SEM was too heavy
What did the man observe in mosquito wings?
Nothing unusual
Details inside them
The external surface
The color of the wings
What is the man's next goal with the TEM?
To look at river samples
To observe cells
To create SEM models
To improve image resolution
A man changed an SEM into a TEM using expensive adapters.
The SEM uses electrons that pass through the sample.
The man used a thicker sample holder to create more space.
The man faced problems with the electron shield after testing.
The man’s next goal is to look at mosquito wings.
This change from SEM to TEM is a well-known process.
A man changed an SEM into a TEM using a .
The SEM usually looks at a while the TEM looks inside samples.
The man created a thinner sample holder from to save space.
After testing, he found the electron shield did not block electrons well.
The man is interested in using the TEM to look at next.
He observed details inside mosquito wings after the images.
