Tungsten Alloy Leaf for Gamma Ray Shielding

As the high density and excellent radiation absorption for radiation, tungsten alloy leaf is widely used for medical radiation protection, such as gamma ray shielding, etc.

Compared to pure tungsten, tungsten alloy material is not so brittle, and could be machined into various shapes as per client’s drawing requirement. Therefore, it could be easily machined as per the beam stopper demand, which including simultaneous beam shaping and intensity modulation of therapeutic beams. To stop the gamma ray better, tungsten alloy usually is made into leaf shape as the following picture, also it could be machined into the size as L2000mm max. xW600mm max. xT0.02mm min. , and the components are usually 90WNiFe, 90WNiCu, 93WNiFe, 95WNiFe, 95WNiCu, 97WNiFe, for more information, you could visit the website tungsten alloy radiation shielding, and also could e-mail to sales@chinatungsten.com.

Tungsten Alloy Invention to Multi-Leaf Collimator

As the properties such as high density and environmental-friendly, tungsten alloy material is usually used to invent a new type of multi-leaf collimator for radiation protection.

Embodiments of the present invention provide a multi leaf collimator (MLC). These embodiments have a plurality of leaves having a length of travel. Each leaf has a proximal end, a distal end, a radio opaque distal blocking portion having a length L and width W, a proximal drive portion having a length L′ and width W′, one or more conductive coils fixed to the proximal drive portion and operatively connected to an electrical current source, where electrical current passing through the conductive coils generates a first magnetic field. The MLC of these embodiments also have a leaf guide with a plurality of channels arranged approximately parallel and adjacent to each other where at least a portion of each of the plurality of leaves is slidingly arranged into each of said channels, and a plurality of stationary magnets positioned adjacent to the proximal drive portion, where each stationary magnet has a second magnetic field configured to operate in conjunction with the first magnetic field from the coils to exert a force on the proximal drive portion. For the high density, we could reduce the size and the volume for the collimator with tungsten alloy material but having the same radiation absorption before. 

What is multi-leaf collimator?

Multi-leaf collimator includes a plurality of leaves, a leaf guide configured to support the plurality of leaves, and a plurality of magnets. Each leaf includes a blocking portion that is radio opaque, a drive portion connected to the blocking portion, and a coil embedded in the drive portion. The coil is operatively connected to an electrical current source to generate a first magnetic field. The first magnetic field interacts with the magnetic field generated by the magnet to thereby move the leave to a desired state. The leaves have the capability of moving at speeds of 50 cm/s up to and higher than 1 m/s.

Tungsten alloy material shows as a very suitable choice for multi-leaf collimator radiation protection. The present invention shows that the higher responsive to radiation could be acquired through tungsten alloy multi-leaf collimator.

Radiation Has Effect on Mars Mission

NASA now has to expose astronauts to cancerous, or even lethal, levels of space radiation. It's an ethical quandary for those involved in NASA's renewed push toward deep-space exploration. And it's being explored by some of the most distinguished scholars, scientists, engineers, health professionals and ethicists in the nation.

On a 500-day round trip to Mars, astronauts would fly outside the Earth's magnetic field, which largely protects International Space Station crews and the planet from deadly forms of space radiation. Those flying beyond Earth orbit would face consequential radiation risks, including exposure to: Solar energetic particles generated by solar flares or coronal mass ejections from the sun. Galactic cosmic rays from the exploding stars, quasars and gamma ray burst outside our solar system. Shielding and sheltering measures can protect crews from solar energetic particles, but new breakthroughs in lightweight materials are needed to make deep-space missions possible.

Actually, there is also a suitable material of tungsten alloy for radiation protection, for more details, you could visit: http://www.tungsten-alloy.com/en/alloy07.htm.

How to Protect Yourself from Nuclear Fallout?

Nuclear bomb No. one wants to think about a nuclear crisis – and hopefully it will never happen, but we all must accept the fact nuclear tensions are rising globally with North Korea (plus Iran, Al-Qaeda and others are seeking nukes) so we should prepare ourselves and our loved ones in the event the unthinkable strikes our soil.
Unless you are actually at ground zero or within several miles radius of the blast zone (depending on the size of the nuke, of course), there is a very high probability you’ll survive as long as you. Therefore, to know clearly how to protect yourself from nuclear fallout is very important:
Limit your exposure to radiation,
Take shelter with proper shielding, and
Wait for the most dangerous radioactive materials to decay.
The last point is very important for our life, actually, there is one kind of basic material of nuclear radiation absorption, that is tungsten alloy material, for more details, you could visit our website: http://www.tungsten-alloy.com/en/alloy07.htm

What is Beta-Gamma Radiation?

Beta-Gamma is a non-traditional style hall, housing residents in four-room suites consisting of double rooms and a shared bathroom. Each room has its own exterior door. The stacks of Ridgeway Gamma weave their way through the trees and hillsides on which they are built. Located between north and south campus, the Ridge is closest to the Rec Center and just uphill from the library, Red Square and most everything else on campus.
Gamma Stack 3 has two lounges, one with a kitchenette, and one with a big screen TV and piano. Beta residents also have access to the lounges located in Beta Stack 8. Laundry facilities are one floor down from each respective lounge, and a sauna in Beta is also open to residents of the Beta-Gamma community. A small indoor bike storage area and outdoor bike storage is available.
Tungsten heavy alloy material is an excellent material for radiation protection. For more details, you could visit our website: http://www.tungsten-alloy.com/en/alloy07.htm

What Are X-Rays And Gamma Rays?

There are many different types of radiation – from the light that comes from the sun to the heat that is constantly coming off our bodies. But when talking about radiation and cancer risk, it is often x-rays and gamma rays that people think about.

X-rays and gamma rays can come from natural sources, such as radon gas, radioactive elements in the earth, and cosmic rays that hit the earth from outer space. But this type of radiation can also be man-made. X-rays and gamma rays are created in power plants for nuclear energy, and are also used in smaller amounts for medical imaging tests, cancer treatment, food irradiation, and airport security scanners.

X-rays and gamma rays are both types of high energy (high frequency) electromagnetic radiation. They are packets of energy that have no charge or mass (weight). These packets of energy are known as photons. Because X-rays and gamma rays have the same properties and health effects, they are grouped together in this document.

There is one type of the most suitable material for radiation protection, which is tungsten alloy material; you could get more information from http://www.tungsten-alloy.com/en/alloy07.htm.