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显示标签为“tungsten”的博文。显示所有博文

2015-12-04

What is Ionizing Radiation?

Ionizing radiation can be measured using units of electron volts, ergs, and joules. The electron-volt (abbreviated eV) is a unit of energy associated with moving electrons around. An electron is “tightly bound” in a hydrogen atom (one proton and one electron). It takes energy to move this electron away from the proton. It takes 13.6 electron-volts of energy to move this electron completely away from the proton. We say then that the atom is “ionized.” In the jargon, the “ionization energy” of the tightly bound electron in hydrogen is 13.6 electron volts. Tungsten would be the best choice for ionizing radiation, for more details, you could visit here.

Radiation Detector In Your Smartphone

A smartphone camera can make you a walking gamma ray detector. Without needing any extra hardware, you could get a warning on your phone when you're approaching potentially harmful levels of gamma radiation.
They concluded that the phones have the processing power to detect gamma radiation with their built-in cameras and to measure levels on the phone. With the help of a program on a remote server, the app captures and measures an average energy level, then uses a model to figure out what types of radioactive material could be emitting the radiation. Basically, once your phone has been calibrated with the app, you'll have a radiation detector in your pocket.
The scientists are considering a commercial partnership to develop the app for the general public. In the meantime, there are other apps that can give you an estimate of the gamma radiation around you.

Tungsten material is a suitable material for gamma radiation protection, for more details, you could visit here.


2015-10-30

Where Do X-rays Come From?

An x-ray machine, like that used in a doctor's or a dentist's office, is really very simple, but inside the machine is an x-ray tube, then X-rays come from that.

An electron gun inside the tube shoots high energy electrons at a target made of heavy atoms, such as tungsten material. X-rays come out because of atomic processes induced by the energetic electrons shot at the target. Tungsten material is a suitable choice for radiation protection, for more details, you could click X-rays protection.

Why Tungsten is Good Choice for Radiation Protection

Tungsten material could reduce the size and volume to have a better radiation absorption environment, which is much superior to lead, because of its high density rage from 17.0g/cm3 to 18.5g/cm3, then much denser. When you need to direct a specific amount of radiation to a targeted area, tungsten provides a control you need even under extreme, high-heat conditions.


Therefore, tungsten is popular for radioactive source containers, gamma radiography, source holders for oil-well logging and industrial instrumentation; also used widely for medical radiation protection such as in cancer therapy, syringe injections radioactive protection, X-ray examination, gamma knife operation, etc.


2015-09-29

Lead-free Radiation Shielding Advantages

Lead has been considered to be the good ability in radiation shielding for decades. It’s cheap, easy to process, and provides very effective shielding. Yet growing health, safety and environmental concerns over the mining, processing, handling and disposal of lead have brought about an increasingly stringent regulatory environment regarding the sale and use of lead products.
There are three factors which determine the amount of radiation received from a source: time of exposure; distance from source; and shielding. Based upon the application, the optimized shielding by designing the material density and wall thickness has been found. Utilizing a composite of tungsten powder in a polymeric matrix, lead free radiation shielding materials provide device manufacturers and material processors with a completely lead-free, injection-moldable thermoplastic solution to overcome all regulatory concerns and satisfy radiation shielding needs.

Lead-free radiation shielding advantages of high density, small capacity, good machinability, environment friendly, etc. have led tungsten material more and more popular with the public.

 Iridium 192 tungsten radiation shielding

2015-08-31

Tungsten is Good Choice for Radiation Shielding

Unlike lead, tungsten material could reduce the size and volume to have the same radiation absorption as lead.
As we know, tungsten is widely used for radioactive source containers, gamma radiography, shields and source holders for oil-well, logging, and industrial instrumentation, because of its high density, much denser then better radiation absorption. Therefore, tungsten is also popular for medical radiation shielding such as used in cancer therapy, as well as syringe protection for radioactive injections, etc.
When you need to direct a specific amount of radiation to a targeted area, tungsten provides the control you need even under extreme, high-heat conditions.

Any more details could found in tungsten radiation shielding


2014-04-25

Tungsten and Radiation

Hey guys, I'm studying in physics recently.

Okay, here's my idea: We use lead to protect us from gamma radiation because it's dense enough to somewhat absorb the tiny wave length.
As I take it, tungsten is more dense than lead, right? Wouldn't it be safer to use tungsten instead of lead? (Looking away from the price aspect, of course...)


Read more: http://www.tungsten-alloy.com/en/alloy07.htm


2014-02-10

Tungsten Used for Atomic Radiation

Everything has a price, and the price of powerful rockets with nuclear propulsion is of course the dread horror of deadly atomic radiation, and the danger can be brought under control with appropriate counter-measures. By treating the power plant with the respect it deserves, the same measures will come in handy if your ship is an interplanetary warship that may be facing hostile nuclear warheads.

The ionizing radiation in space is comprised of charged particles, uncharged particles, and high-energy electromagnetic radiation. The particles vary in size from electrons (beta rays) through protons (hydrogen nuclei) and helium atoms (alpha particles) to the heavier nuclei encountered in cosmic rays, e.g., HZE particles (High Z and Energy, where Z is the charge). They may have single charges, either positive (protons, p) or negative (electrons, e), multiple charges (alpha or HZE particles); or no charge, such as neutrons. The atomic nuclei of cosmic rays, HZE particles, are usually completely stripped of electrons and thus have a positive charge equal to their atomic number.

As for this terrible radiation, export discover that tungsten alloy could be the most suitable material for radiation protection. The higher density of tungsten alloy, the denser of itself would be. Especially for the outstanding machinability of tungsten alloy, it should be machined into different shape as per the required drawing.