Tungsten Alloy Radiation Focusing Ring
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- Category: Tungsten Information
- Published on Friday, 28 June 2013 11:56
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Focusing ring used to adjust the lens so that the subject appears sharp on the film or CCD. Most cameras now have automatic focus (AF), some have manual focus override (MF) and some have a fixed focus (F) lens that ensures things from about 1.5 meters to infinity are relatively sharp. A few cameras have a power focus (PF), which is a manual method, using a motorized tungsten alloy radiation focusing ring. Lenses with a ring that allows a good grip make tungsten alloy radiation focusing ring easier to adjust and focus manually.
A low-cost lens doesn't have a tungsten alloy radiation focusing ring. Found in very basic cameras. The lens is set to a distance of around three meters and relies on the depth of field to bring everything from about one and a half meters to infinity. The quality is always a compromise over a lens with adjustable focusing. Tungsten alloy radiation focusing ring is good to our health.
An optical device is built into older cameras or added as an attachment. That is used to work out the subject distance by comparing two viewpoints. You see a double image and adjust the lenses until the images form one which gives a distance reading that can then be transferred to the focusing ring.
As we know, all microelectronic have radiation when we used. In order to resistant radiation from these products, we have to protect measures to prevent it. Tungsten alloys is a best choices for tungsten alloy radiation focusing ring. Compared to traditional radiation shielding materials, tungsten alloy radiation focusing ring provide excellent value. A high-density alloy can provide the same energy absorption as lead using 1/3 less material. People are taking advantage of tungsten alloy reliable radiation focusing ring properties.
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Tungsten X-ray Protection Apron
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- Category: Tungsten Information
- Published on Friday, 28 June 2013 11:43
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To protect our health from the radiation, tungsten X-ray protection apron becomes more and more popular in medical areas. With the development of our daily life, more and more machines are used by people both in medical and other industries which brought much more radiation for us than ever, such as X-ray radiation, gamma radiation (energetic electromagnetic radiation), radiation of alpha particles (helium atoms) beta particles (electrons) and cosmic radiation, etc. they are very harmful to our body, there also comes a lot of shielding made by tungsten heavy alloy such as tungsten X-ray protection apron from tungsten powder which is very popular in medical especially when the patient makes a panorama X-ray.
Tungsten X-ray protection apron made from tungsten powder equally protects against the radiation, as tungsten powder is high density with small volume, good corrosion resistance, and high temperature resistance, non-toxic and environmentally friendly.
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Tungsten Alloy Brachytherapy Shielding
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- Category: Tungsten Information
- Published on Friday, 28 June 2013 11:17
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It is possible to use an alternative type of radiotherapy, which is known as afterloading (a version of brachytherapy) when it is difficult to access the diseased cells directly. Tungsten alloy brachytherapy shielding consists of implanting a radioactive seed inside the patient's body, via a catheter. Before and after treatment the seed is kept in a large tungsten safe, tungsten alloy radiation shielding is used to protect the patient and medical staff against radiation in the treatment.
When it is difficult to access the diseased cells directly, it is possible to use an alternative type of radiotherapy, known as afterloading (a version of brachytherapy shielding). This technique consists of implanting a radioactive seed inside the patient's body, via a catheter. Before and after treatment the seed is kept in a large tungsten safe, to protect the patient and medical staff against radiation.
Tungsten alloy brachytherapy shielding is an integral part of the treatment regimen for cervical cancer and, generally, outcome in terms of local disease control and complications is a function of dose to the disease bed and critical structures, respectively. Therefore, it is paramount to accurately determine the dose given via brachytherapy to the tumor bed as well as critical structures.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
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Tungsten Alloy Barrel Weight
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- Category: Tungsten Information
- Published on Friday, 28 June 2013 11:30
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Tungsten alloy barrel weight, is also called tungsten barrel weight is commonly used for fishing jigs and darts where there is a need of high mass in a limited space. Tungsten barrel weight resembles a bullet. Cylindrical in shape, tungsten alloy barrel weight is narrower at one end and widen out at the base.
It is difficult to find out what tungsten alloy barrel weight means in English, because both the weight for fishing and for darts are called tungsten alloy barrel weight. Besides, in Chinese,barrel means container used for stocking, but in the foreign countries, barrel is the object with barrel shape.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
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Tungsten Heavy Alloy Stopper Shields
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- Category: Tungsten Information
- Published on Friday, 28 June 2013 10:56
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Tungsten heavy alloy is ideal for shielding against radiation. The very high density of tungsten alloy shielding (more than 60% denser than lead) allows a reduction in the physical size of shielding components, without compromising their rigidity or the effectiveness of the shielding characteristics.
Tungsten heavy alloy stopper shields 50cm thick (concrete brick) around the 288cm tungsten alloy stopper shields. Concrete tungsten heavy alloy stopper shields before and after tungsten alloy stopper shields to stop the particles having interacted at or before the tungsten alloy stopper shields.
Tungsten heavy alloy stopper shields are usually made of concrete 50cm thick, with an inner aperture of 110cm and an outer aperture of 160 cm the all length of the beam stopper. It leaves a layer of air of 15cm around the tungsten heavy alloy stopper shield.
Tungsten heavy alloy stopper shields have been chosen instead of iron. Both material have a similar dE/dx (iron has even slightly higher one); therefore the particle absorption is twice the absorption in iron.
Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email: sales@chinatungsten.com
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