gamma ray

Some researchers had thought magnetars wouldn't be massive enough to produce the kind of energy required for a gamma-ray burst.

Gamma-ray bursts cannot be seen by the human eye, but if they could the sky would light up like a camera flash each time they occurred.

When particles in the jet strike a photon of visible or infrared light, they cause the photon to jump up in energy and become a gamma ray.

Most gamma ray bursts last for only tens of milliseconds up to a few minutes.

The probability of a specific interaction occurring depends on the atomic number of the material and the energy of the gamma ray.

These observations revealed a burst of radio light that coincided with the gamma-ray flares, which usually lasted a few days.

Usually gamma-ray bursts mark the end of a massive star and emission from these events never lasts more than a few hours.

Last month, we discovered a bright gamma-ray flare from the direction of this star while it was undergoing a huge optical outburst.

Every week, astronomers sight two or three gamma ray bursts (GRBs), short flashes of high-energy radiation from collapsing stars.

The bubbles display a spectrum with higher peak energies than that of the diffuse gamma-ray glow seen throughout the sky.

NASA's Fermi spacecraft has discovered a pair of enormous gamma-ray-emitting bubbles extending from the Milky Way's center.

Gamma Ray curve is mainly used for the location of lithology and calculate the clay content.

These positrons then come into contact with electrons in the body, and the two annihilate, releasing two gamma-ray photons.

however , it is now proposed that the conversion of neutron stars to strange stars is another possible origin of gamma - ray bursts.

That was a Gamma Ray Burst that just slammed into you, but instead of mutating into a rampaging green bahemoth, you die instantly.

Dr. Vicki Kaspi , a Professor of Physics at McGill University, explores the irradiating effects of a giant gamma ray burst.

At the point of collision they may release a giant Gamma Ray Burst.

What intrigued the researchers about this gamma ray burst is that it flared up four times over a period of four hours.

Gamma-ray bursts (GRBs) are flashes of gamma-ray occurring at cosmological distances, being the most powerful explosions since the Big Bang.

A diffused gamma-ray glow from the plane of our Milky Way Galaxy is clearly seen across the middle.

Observations from NASA's Fermi Gamma-ray Space Telescope hint that all forms of light may not travel through space at the same speed.

Many new black holes in the distant universe previously have been detected in the form of gamma-ray bursts (GRBs).

SOIL QUALITY. EVALUATION OF APPARENT DENSITY OF A SOIL. GAMMA-RAY TRANSMISSION METHOD.

The nuclear-cement log is similar to a density log in that it contains a gamma ray source and measures the backscattered gamma rays.

Shales and clays are responsible for most natural radioactivity, so the gamma ray log often is a good indicator of such rocks.

An empirical technique for calculation of the capture gamma ray dose in the maze of high-energy medical accelerators is described.

Fermi was located immediately above a thunderstorm for most of the observed gamma-ray flashes, but in several cases, storms were far away.

The gamma ray index is usually computed from a well log such as a gamma ray log.

Phenomena resulting from the transfer of energy from a gamma ray to matter, usually to an electron.

Astronomers keep discovering new noisemakers in space: colliding black holes, glitching pulsars, gamma ray bursts.

This discovery came in 1959, when researchers measured the gravitational redshift in gamma-ray light emitted in a lab here on Earth.

The gamma ray log was the first nuclear well log and was introduced in the late 1930s.

The latest gamma-ray burst to be detected accurately occurred last December.

Pulsed neutron decay spectrum (PND-S) logging can simultaneously measure the gamma ray of inelastic scattering and capture gamma ray.

From brief glimpses throughout the past decade, astronomers have pieced together a standard theory of gamma ray bursts.

A gamma-ray burst spews out photons in a range of energies in a very brief explosion.

As in other active galaxies, that process likely generates the radio, X-ray, and gamma-ray energy radiated by Centaurus A.

Radiating candied apricot with Co60 gamma-ray could prolong its time of guaranteeing quality.

The tool bombards the formations with neutrons and measures both the inelastic and capture gamma ray spectra that results.

NASA launched the Swift gamma-ray telescope thinking it would give scientists a way to monitor the births of black holes.

"The idea is to make a gamma-ray laser from stimulated decay of dipositronium. "

The gamma-ray detector spotted the antimatter signals while searching for at terrestrial flashes of gamma rays.

The films are developed and the degree of fogging observed is a measure of the gamma-ray exposure.

Positrons and electrons annihilated each other, emitting gamma rays detected by Fermi's gamma-ray burst detector, researchers said.

He's principal investigator of the Large Area Telescope on NASA's Fermi Gamma-ray Space Telescope.

Great progress on Gamma-ray burst (GRB) research has been made since the discovery of afterglows in 1997.

Both groups searched for the gamma-ray glow from dark matter in dwarf galaxies orbiting the Milky Way.

Another group of scientists studied a sampling of gamma-ray bursts observed by NASA's Swift gamma-ray satellite.

The Large Area Telescope is the most sensitive and highest-resolution gamma-ray detector ever launched.

NASA's Fermi Gamma-ray Space Telescope has unveiled a previously unseen structure centred in the Milky Way.

In the ensuing dramatic collapse, a flood of high-energy, short-wavelength gamma-ray light is released.

The release of gamma ray and specifically radiation containing cesium & irredium is extremely harmful for human being.

Are Gamma-ray Bursts due to Isotropic Fireballs or Cylindrical Jets?

High performance large-size BGO crystal is adopted to reduce fluctuation of gamma-ray counts.

Combined with log response, it can be identified efficiently by gamma ray logging curve, neutron logging curve and density logging curve.

A neutron gamma ray type of wireline log that is run to determine the amount of chlorine present in a formation.

The gamma ray spectrums provide the PIPA equipment with baseline data for analysis.

Countless civilizations that were destroyed by gamma ray burst.

The highest probability for this effect occurs at low gamma ray energy and in a material of high atomic number.

Angels Cry was recorded at Gamma Ray guitarist Kai Hansen's studio in Hamburg, Germany.

This team used data from NASA's Fermi spacecraft, which also observes in gamma-ray light.

Gamma-ray bursts are the most powerful objects in the Universe.

This paper presents a new automatic spectra-stabilization method for natural gamma ray spectralog.

The Hubble Space Telescope captured this image of a gamma ray explosion on January 23, 1999.

"We've basically explained what that gamma ray source is, " says Crocker.

The writer tries to bring creatively up a new way to research the ecosystem environment with natural gamma ray spectrum data.

They release flashes of X-raysabout every 10 seconds with an occasional gamma-ray burst.

Gamma ray index a number that indicates the shaliness of a rock.

The Vela pulsar is the brightest persistent source in the gamma-ray sky.

The gamma-ray values were relativistically corrected and rescaled.

IceCube's task is to watch for energetic neutrinos emanating from violent cosmic events such as supernovae and gamma-ray bursts.

EGS4 user code developed for design and optimization of Gamma-ray detection system.

Or a supernova or gamma-ray burst near our spot in the Milky Way could prove ruinous for life on Earth.

This artist's concept depicts what a gamma-ray burst might look like if we could view it up close (this is not something we'd recommend).

Gamma ray interactions with matter.

If the black hole eats a star every 30, 000 years, that hot plasma could provide enough energy to power the gamma-ray bubbles.

The higher a gamma ray's energy, the shorter its wavelength.

Airborne gamma-ray spectrometry has been widely used.

Gamma-ray bursts last for an average of about 30 seconds.

PSR J0357 was originally discovered by the Fermi Gamma Ray Space Telescope in 2009.

The Japanese Kaguya spacecraft, which was launched in 2007, detected uranium with a gamma-ray spectrometer.

the actual airborne gamma-ray spectrometry has played a guiding role and qualitative analysis, but also provides a theoretical basis.

The gamma-ray burst was first detected by NASA's Swift satellite in April 2009.

What shines in Fermi's gamma-ray sky?

Black holes, on the other hand, have no upper mass limit, so can encompass any mass needed to power a gamma-ray burst.

Follow-up observations showed the light changing, and not just in gamma-ray wavelengths, but also in X-rays and infrared.

Some tools, such as the gamma ray, are calibrated only at the wellsite.

Water quality - Determination of the activity concentration of radionuclides by high resolution gamma-ray spectrometry

Prediction of formation sensitivity with natural gamma ray spectrometry log used in Dagang oilfield

Spectrum striping technology research on gamma-ray spectrometric logs quantitative interpretation

Application of natural gamma ray spectrometry log to the glutenite body of the northern actic region in Dongying Sag

Test Method for Nondestructive Analysis of Special Nuclear Materials in Homogeneous Solutions by Gamma-Ray Spectrometry

cryostat end - cap dimensions for germanium semiconductor detectors for gamma - ray spectrometers

coincidence anticoincidence gamma ray spectrometer

Standard Guide for Nondestructive Assay of Special Nuclear Material Holdup Using Gamma-Ray Spectroscopic Methods

Causation of Difference in Uranium Content Measured by Natural Gamma Ray Spectrometry Log and Neutron Activation Analysis

Test Method for Nondestructive Assay of Special Nuclear Material in Low Density Scrap and Waste by Segmented Passive Gamma-Ray Scanning

Climatic and biogeochemical effects of a galactic gamma ray burst

Simulation of influence of source distances on neutron-gamma ray spectra for oil sandstone formation and water flooding in borehole

Practice for dosimetry for a self-contained dry-storage gamma-ray irradiator

Application of three dimensional gamma-ray tracking transmission model in mobile communication

Nuclear instrumentation - Sample containers for gamma-ray spectrometry with Ge-detectors

Application of Dual-Energy Gamma-Ray System in Measuring Phase Fraction of Multiphase Flow and Statistical Error Analysis

Neutron and Gamma-Ray Cross Sections for Nuclear Radiation Protection Calculations for Nuclear Power Plants

An Effective Method for Correcting Kalium Contained Minerals in Natural Gamma-ray Spectrometry Logging

Problems about small diameter natural gamma ray tool and its improvements

Quality Inspection and Radiation Monitoring of Gamma-ray Radiotherapy Instrument

Gamma-Ray Attenuation Coefficients and Buildup Factors for Engineering Materials

clinical dosimetry ; therapeutical application of x - ray , gamma - ray and electron beams

the gamma detecting unit is used for measuring near-bit gamma rays to generate gamma ray data;

Changes in Physicochemical and Sensory Characteristics of Chilled Pork Irradiated at Low-dose Gamma Ray

In-situ-gamma-ray spectrometry for nuclide specific environmental measurements

Application of ground gamma-ray spectrometric survey to prospecting for salt lake-type potash deposits

Gravitational Radiation, Luminous Black Holes and Gamma-Ray Burst Supernovae

Application of Natural Gamma Ray Spectrometry Logging in Glutenite Reservoir

Radiological protection standard for gamma-ray afterloading brachytherapy

Research and development of gamma-ray intravascular brachytherapy treatment planning system

Applications of Analytic Method for Neutron-Gamma-Ray Spectra From Formation Elements

Odd Gamma-Ray Burst Points to New Form of Stellar Suicide

Standard Test Method for Determining the Content of Cesium-137 in Irradiated Nuclear Fuels by High-Resolution Gamma-Ray Spectral Analysis

Finished product rolling mill of aluminum alloy foil (equipped gamma ray thickness gage)

Experimental observation on the effect of gamma-ray stereotactic radio therapy on hepatocellular carcinoma in rats

A Simple Shock Model for the Light Curve of Gamma-ray Bursts

Recent Developments in Gamma-ray Bursts --Standard Model and Post-Standard Effects

Influence of Directional Response of Gamma-ray Logging Probe on Results of Measurement

spherical tank - radiographic method of gamma ray panoramic exposure

A Method for Obtaining Permeability in Sandstone with Natural Gamma-ray Spectrum

Effect of Gamma-ray Irradiation on Output Characteristic of Color CMOS Digital Image Sensors

Standard Test Method for Quantitative Determination of Americium 241 in Plutonium by Gamma-Ray Spectrometry

Effect of gamma-ray irradiation on cord blood lymphocyte proliferation and NK cell activity

Calibration of Germanium Detectors for In-Situ Gamma-Ray Measurements

The Application of Temperature Compensation in Natural Gamma Ray Tool

Identifying the energy peaks in formation gamma-ray spectrum with the reference peakfunction

Standard Guide for High-Resolution Gamma-Ray Spectrometry of Soil Samples

Digital filtering techniques for natural gamma ray logging

Complete Method for Cascade Correction in Gamma-Ray Measurement

Gamma Ray Bursts: Phase Transition from Neutron Matter to Quark-Gluon Plasma

The Temporal Evolution of the Hardness Ratio of Gamma-Ray Bursts

Follow-up of Post-operative Patients Underwent Gamma- ray Knife Surgery

Method for sensitivity adjusting of big-crystal natural gamma ray tool

Karst carbonate reservoir division and contrast based on natural gamma ray spectrometry logging in Tahe Oilfield

Gamma-ray bursts from stellar mass accretion disks around black holes

Gamma-Ray Emissions of AGN and Cosmological Standard Candles

The distributions of hardness ratios and new classific characteristics of Gamma-ray bursts

Influence of Gamma Ray Radiation on Platelet Activation

Treatment Planning System for Gamma-Ray Whole-Body Radio-Therapy

Utility of Photomultiplier Tube in the Natural Gamma Ray Logging Tool

Assembly process of Gamma ray medical operation instrument

Solar Gamma-Ray Spectroscopy and Abundance of Elements

Test procedures for germanium gamma-ray detectors

Discussion on some problems of the gamma ray logging

Development of Natural Gamma-ray Spectrometry Logging Tool for Image Logging Unit

Effect of Prestorage Gamma Ray Radiation on the Chemokine Levels in Stored Apheresis Platelets

Identification of High Gamma Ray Reservoir in Ordos Basin

Development of a high performance natural Gamma- ray spectrometry logging tool based on CPLD

gamma-ray penetration type liquid density meter

Correction of Spatial Distortion in Gamma Ray Image

Application of gamma-ray in research of soil water movement

Natural Gamma Ray Spectrum Logging Survey

The Performance and Development of Lunar Gamma Ray Spectrometer

gamma-ray absorption fluid density meter

Test Method for High-Resolution Gamma-Ray Spectrometry of Water

gamma ray neutron calibration mode

natural gamma ray spectral logging

New applicable method of gamma ray logging curve

Neutron and Gamma-Ray Fluence-to-Dose Factors

Gamma-ray Large Area Space Telescope

Some Considerations on Magnetic Field of Gamma Ray Bursts

Recovery of Chinese herbs Eight Ingredients on dysmicrobia in mice exposed by 60 Co gamma-ray

Electrofacies Study with Gamma Ray

The Physics of Gamma-Ray Bursts

Response Function System of Natural Gamma-ray Log Based on Bell Functions

Debris analyzing instrument based on the nature gamma ray logging technology