सामग्रियों के लिए यह क्यों महत्वपूर्ण है
A single MRI machine needs a superconducting magnet cooled by helium, and the contrast agent injected into the patient is a rare earth. Neither has an obvious alternative.
यह किससे बना है
सभी सामग्रियाँ →| सामग्री | यह यहाँ क्या करता है | महत्त्व |
|---|---|---|
| Gadolinium क्रिटिकल | MRI contrast agent | परिभाषित करना |
| Helium | Cooling superconducting MRI magnets | परिभाषित करना |
| Niobium क्रिटिकल | Superconducting MRI wire | परिभाषित करना |
| Titanium क्रिटिकल | Implants and instruments | परिभाषित करना |
| Barite क्रिटिकल | X-ray contrast | महत्त्वपूर्ण |
| Cobalt क्रिटिकल | Radiotherapy sources and implant alloys | महत्त्वपूर्ण |
| Lutetium क्रिटिकल | PET scanner crystals and cancer therapy | महत्त्वपूर्ण |
| Platinum क्रिटिकल | Chemotherapy drugs and electrodes | महत्त्वपूर्ण |
| Holmium क्रिटिकल | Surgical lasers | वर्तमान |
| Silver क्रिटिकल | Antimicrobial dressings | वर्तमान |
Gadolinium
A rare earth that absorbs neutrons better than almost anything, and that makes MRI scans easier to read.
Helium
The only element cold enough to keep an MRI magnet superconducting, and the only one light enough to escape Earth's…
Niobium
A metal that makes steel much stronger when added in tiny amounts — a few hundred grams per tonne changes the whole…
Titanium
A metal as strong as steel at about half the weight, which does not corrode in seawater or in the human body.
Barite
A very heavy, soft mineral used mostly to weigh down drilling mud so an oil well does not blow out.
Cobalt
A hard, bluish metal that keeps a battery's cathode stable so it does not overheat, and that holds its strength when…