What are the fluorescent scintillation materials, and what is the difference between scintillation c

There are main types of luminescent materials: photoluminescence, cathode ray luminescence, electroluminescence, pyroluminescence, photoluminescence, radiluminescence, etc. (Qiyue Biology can ** a variety of luminescent materials).

Questions. Know.

What materials are self-luminous.

Does anyone know what materials are self-luminescent? It's the kind that glows at night. Except for the light lamp. LED lights. Phosphor. Is there anything else in the glow-in-the-dark powder?

I'll answer. 7 articles.

Yingzhou smoke and rain. Know Partner Education Specialist Recommended on 2018-04-02

Types of self-luminous materials (phosphorescent self-luminous materials):

1) Sulfide series phosphorescent self-luminescent materials.

Sulfide series phosphorescent self-luminous materials mainly include zinc sulfide, zinc cadmium sulfide, strontium sulfide, barium sulfide, calcium sulfide, etc. At the same time, it is also an important practical luminescent material for cathode rays and electroluminescence.

2) Aluminate phosphorescent self-luminous materials.

Aluminate phosphorescent self-luminescent materials have the characteristics of high luminous efficiency and good chemical stability.

3) Silicate system phosphorescent self-luminescent materials.

Silicate light-storing self-luminous materials are silicate light-storing self-luminous materials with good water resistance, stable ultraviolet irradiation, diverse luminescence colors, high afterglow brightness, and long afterglow time.

Phosphorescent self-luminous materials are a kind of luminescent materials that absorb the excitation light energy and store it, and after the light excitation stops, the stored energy is slowly released in the form of light, and can last for several or even ten hours. This process of absorbing light, storing and re-emitting light, and can be repeated indefinitely, is similar to the repeated repetition of charge-discharge-recharge-re-discharge of the battery, so it is called a phosphorescent self-luminous material.

Scintillation crystal roll refers to the high-energy particles (X-rays or rays) under the irradiation of ultraviolet light or visible light of the crystal, different from phosphor, the flash wide crystal is a huge single crystal material, it emits fluorescence can pass through the material itself, and phosphor is only the powder of the first coincidental aftermath of the crystalline, opaque. Scintillation crystals are combined with photomultiplier tubes, which can be used for nuclear radiation detection and are widely used in medical and industrial fields.

There are many types of fluorescent materials: phosphorescent type, reflected light type, and two-agent reaction type. These three are the most common three, and they have different luminescence principles.

1).Phosphorescent type: To put it simply, it is a process of rapid absorption and slow release.

2).Reflected light type: It is composed of a substance with a large surface secrecy and strong polishing of the skin, which is a kind of parallel diffuse reflection to put it bluntly, which is the same principle as the bicycle tail light.

And this kind of reflective light type of material is also the most commonly used in life to burn hail (such as: street signs, highlighters, safety sticks, etc.).

3).Two-dose reactive type: It is composed of two chemical agents, and when the two doses meet, a chemical reaction will occur, and the number of skins produced will be born. (For example, the same is true for the luminescence principle of glow sticks and glowworms).

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