Sentences with phrase «type of radiation»

The sun puts out less energy when its activity is low, but different types of radiation vary to different degrees.
It is not uncommon for teachers to mention optical telescopes during physics lessons but references to telescopes that make use of other types of radiation are less common.
There are several types of radiation emitted from many computers, especially laptops, and they come with different risks.
Having developed the detector technology, the pair are now focused on building prototype detectors for the various types of radiation relevant to particular disciplines, including X-rays and beta particles.
Different types of radiation equipment and scheduled of radiation therapy used, and limited numbers of patients in studies make interpretation difficult.
The astronomers expect material falling onto a black hole to emit radio waves, among other types of radiation.
Stereotactic body radiation is a newer type of radiation therapy which delivers higher doses of radiation to the tumor but spares the surrounding tissue.
Our radiation oncologists provide the most advanced types of radiation therapy available today, including intensity - modulated radiation therapy and cone beam image - guided radiation therapy.
Currently, the U.S. Food and Drug Administration (FDA) approves the use of certain types of radiation on food and food products.
Such people, however, have been exposed to different types of radiation from what one encounters in space, and at best the correlation of data is imprecise.
The Truebeam system often is used to deliver intensity modulated radiation therapy (IMRT), an advanced type of radiation treatment that conforms to the shape of the tumor.
Specifically, we have a linear accelerator (linac), a giant machine that creates various types of radiation depending on patient needs.
There was some form of canopy made of of a water vapor which shielded everything from the suns harmful types of radiation.
In January 2012, Christoph Weniger, a physicist at the University of Amsterdam in the Netherlands, started noticing hints of a strange type of radiation around the center of our galaxy.
Based on previous research, the researchers hypothesized that radiation from phones would accelerate progression of the disease because other types of radiation cause free radical damage.
WRITING ON THE WALL A new type of radiation detection could make it much harder to keep radioactive material under wraps.
With only one tight pair known, he says, it was difficult to assess how common even tighter black hole pairs are, which are crucial in the hunt for gravitational waves — a subtle type of radiation predicted by Einstein's general theory of relativity.
If deemed necessary, countermeasures for immunity could include new types of radiation shielding, nutritional supplementation, pharmaceuticals and more.
The two main types of radiation treatment are external beam and interstitial brachytherapy.
University of Chicago radiation oncologists were the first in the Chicago area to offer this advanced type of radiation therapy.
Himalayan salt lamps are attributed to purifying the air by releasing negative ions into the atmosphere that neutralize the positive ions emitted from different types of radiation (like from cell phones and computers).
But the motion of positrons would have created other types of radiation, which the team did not see.
A new type of radiation that pinpoints the exact location to be treated helped save her life.
Male rats developed heart tumors when exposed to high levels of a type of radiation used by the wireless telephone industry, according to the draft studies released Friday.
The main concern people have about cell phones is that they emit radio - frequency (RF) energy, a type of radiation.
While pregnant women can't avoid all types of radiation, it's best to limit any unnecessary exposure.
Radiation therapy may also require an interruption in breastfeeding, depending on the type of radiation used and the duration of treatment.
Overall, about one - third of men with prostate cancer receive some type of radiation therapy.
Brachytherapy is a type of radiation therapy (RT) where radioactive seed implants are inserted directly into a patient's tissue to deliver treatment to the tumor while limiting radiation exposure for surrounding tissue.
Fission fragments are typically radioactive, and can emit different types of radiation, among them neutrons.
Gregg Hallinan of the California Institute of Technology and colleagues have detected both types of radiation from what appears to be a brown dwarf, an object that straddles the boundary between planet and star.
That's because different nuclear materials give off their own specific blend of gamma rays, X-rays and so on, and each type of radiation penetrates insulators with different strengths.
And for some frequencies of light — such as terahertz radiation, a type of radiation that falls between the infrared and microwave bands of the electromagnetic spectrum and passes through many materials that block visual and infrared light — ordinary materials developed so far don't work as lenses at all.
The big corrections are dose rate, type of radiation, and the differences between the populations who are exposed.
A new microscopic laser uses a sandwich of semiconductors to generate a beam of t - rays, a rarely used — but much coveted — type of radiation.
Delp and his colleagues also exposed mice to the type of radiation that Apollo astronauts would have experienced.
The final group was exposed to both types of radiation, plus the vacuum.
The doctor explained that there are two types of radiation: ionizing and non-ionizing.
To reach this level, it is necessary to know how a dosimeter will respond to different types of radiation and the optimal conditions for usage.
Scan from the region of visible light towards the longer wavelengths of the electromagnetic spectrum and you'll find, sandwiched between microwaves and the infrared, a type of radiation that we have previously had little time for: terahertz rays, or T - rays.
The high - energy particles, a type of radiation, vary over time and altitude and pose a health risk to exposed space travelers.
Even what we refer to as the heat given off by radiators is a type of radiation — infrared rays.
CyberKnife, as well as other types of advanced radiation treatment devices (such as image guided Linac [Linear Accelerators] and Tomotherapy), are used in a type of radiation therapy called stereotactic radiotherapy, also known as stereotactic body radiotherapy or SBRT.
cosmic microwave background A type of radiation that fills the universe with a faint glow.
Some types of radiation seem to be dimly emitted not from a certain object, but from the overall universe.
X-rays and gamma rays are two other types of radiation — both of which are found naturally and in man - made devices like imaging tests, scanners, and certain power plants — that can cause DNA mutations, which may lead to cancer in the future.
The limited evidences in humans may be why regulators are claiming that this type of radiation is safe.
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