The individual who discovered roentgenograms x rays

Wilhelm Röntgen

Explanation:

The German physicist Wilhelm Röntgen was the one who discovered the X-rays in 1895, while conducting experiments to investigate the violet fluorescence produced by the cathode rays. After this, he used photographic plates to show that the objects were more or less transparent to X-rays depending on their thickness and performed the first human radiography, using his wife's hand.

He called these newly discovered rays "X-rays" because he did not know what they were and thanks to this discovery he was awarded the Nobel Prize in 1991.

At present it is known that X-rays are electromagnetic radiation, whose wavelength is between 10 nm and 0.01 nanometers, invisible to the human eye, capable of crossing opaque bodies and of being an ionizing radiation.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia