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[Chemical Knowledge]：The use of rubidium-to explore the unknown mysterious elements

Read： 1060 Time：17months ago Source：Transform the World with Simplicity

Rubidium is a chemical element whose chemical symbol is Rb and atomic number is 37. In nature, rubidium rarely appears as an element because it is easily replaced by other elements. However, the presence of rubidium still excites the curiosity of scientists, creating many amazing technologies and applications.

1. Nuclear Magnetic Resonance

Nuclear magnetic resonance (NMR) is a technique that uses the interaction between the spin of an atomic nucleus and an electron cloud to study the structure of matter. The Rb-87 isotopes of rubidium are widely used in nuclear magnetic resonance spectroscopy and become important probes for detection. Due to the special properties of this isotope, it has a wide range of applications and important representativeness in the study of pharmaceuticals, chemistry and biological systems.

2. ionization smoke detector

ionization smoke detector is an instrument used to detect indoor fire, in which the radioactive source is generally selected cesium 137 or uranium 238. In our country, the short life of cesium 137 and high-energy radioactivity makes some ionization smoke detectors using rubidium. Its working principle is to detect the existence of indoor fire source through the ionization ability of radioactive rubidium, so as to detect indoor smoke. The sensitivity of rubidium is extremely high, and this detector can accurately detect very small smoke.

3. optoelectronic device

rubidium optoelectronic device is a kind of light control element, with high sensitivity and good frequency response characteristics. Different from traditional optoelectronic devices, rubidium optoelectronic devices adopt the principle that rubidium atoms absorb photons and release photoelectrons, so the photoelectron output intensity responds symmetrically to input light of different wavelengths, and can realize applications such as full optical transmission, optically controlled switching and optical power control.

4. thermal conductivity agent

rubidium has a very high thermal conductivity, often used as a nuclear reactor pipe material, rubidium ion laser medium. Its thermal conductivity can efficiently transfer heat energy, making rubidium widely used in industrial production, scientific research and other fields.

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