diffrence between X ray and Gamma ray?
145922
The main difference between x ray and Gamma ray is that X rays originate from the electron transitions in the atom out side the nucleolus. But Gamma rays are emitted from the nucleus. \n\nX ray\nWavelength : 10 - 0.1 Angstroms (1 Angstroms = 10^-10m)\nX rays are high frequency electromagnetic rays which are produced when the electrons are suddenly decelerated - these rays are called bremsstrahlung radiation, or "braking radiation". X-rays are also produced when electrons make transitions between lower atomic energy levels in heavy elements. X-rays produced in this way have definite energies just like other line spectra from atomic electrons. They are called characteristic x-rays since they have energies determined by the atomic energy levels.\n\nWithin a short time of their discovery, they were being used in medical facilities to image broken bones. Also they are used to study the crystal structures.\n\nGamma Ray\nWavelength :  <0.1 Angstroms\nThe term gamma ray is used to denote electromagnetic radiation from the nucleus as a part of a radioactive process. The energy of nuclear radiation is extremely high because such radiation is born in the intense conflict between the nuclear strong force and the electromagnetic force, the two strongest basic forces. The gamma ray photon may in fact be identical to an x-ray, since both are electromagnetic rays; the terms x-ray and gamma rays are statements about origin rather than implying different kinds of radiation. Also they are produced from the positron-electron annihilation in presence of a nucleus.\nUsed in the gamma ray spectrometry.\n\nGamma ray autoradiography etc.\n\ni think your doubt has been clear.
421381
Several Units actually and they can be a bit confusing\n\nRad, Rem, Seiverts, grey, etc etc\n\n\nhere is the break down\n\nKerma = Kinetic Energy transferred to charged particles in Rads / Grays.\nRad = radiation absorbed dose\n= 100 ergs of energy / gm of tissue\n= 0.01 joule of energy / kg of tissue\n1 Gray = 100 Rads = 1 joule of energy / kg of tissue\n1 Rad = 0.01 Gray\n1cGy (centi Gray) = 1 Rad\n1 mGy (milli Gray ) = 0.1 Rad\nRem = radiation equivalent man\n= rad x RBE (QF) / (relative biological effectiveness or Quality factor)\nSeivert = Gray x QF\n1 Seivert = 100 rems \n(1000 milliSv or mSv)\n1 mSv = 0.1 rem ( for Xrays which have a qualifying factor of 1) = 1 mGy\n\n\n\nconfusing huh?  took 2 college terms on it myself
402505
Technically, William Roentgen, but others have, without proof, said that they have had before him. For more info, go to en.wikipedia.org/wiki/X-ray
566741
Yes. Rays? yes, that too... but mainly becuase of eyes intense light for fairly long time. Objects moving continuously. With tube-type TVs some X-ray is also emitted.
856950
IR ray is an electromagnetic wave, like visible light, X-ray, gamma ray and UV ray(even radio waves). the energy of IR wave is lower than visible, UV, X-ray and gamma. when one of the high energy electromagnetic waves hit a molecular, they will brake it to smaller parts( if they have enough energy) but IR doesn't have enough energy, so all it can do is to make the molecules move faster. the movement average of molecules is what we call heat, so when IR hits a material, it'll rise the average molecular movement in it and we say that the material became hotter.
593379
what is the difference between the two
1029641
The X-ray and Gamma radiations, which are both pretty much the same, are very high energy electromagnetic radiation. Besides the X-ray machine they are produced by very hot bodies like stars. They are produced by both yang and older stars.\n\n“In stars like our sun, X-ray flares are produced by the hot outer surface, or corona, of the star. The intensity of the X-rays produced is dependant on a number of factors including the star’s age and rotation. Using Chandra, researchers have found “violent” stars that tend to produce flares one hundred times more powerful than those produced by more docile stars. When these super-flares strike the planet-forming disks that surround the star, they can alter the positions of any nascent planets.” http://www.jyi.org/articletools/print.php?id=223 \n\n\nI think this what you were after.\n“The scientists calculated that gamma-ray radiation from a relatively nearby star explosion, hitting the Earth for only ten seconds, could deplete up to half of the atmosphere's protective ozone layer. Recovery could take at least five years. With the ozone layer damaged, ultraviolet radiation from the Sun could kill much of the life on land and near the surface of oceans and lakes, and disrupt the food chain.” \n\nSS
982613
Physics is an attempt to describe the physical universe. Physics is involved in all physical phenomena. Ultrasonic scanners release sound waves and monitor the sound waves which are reflected back. They work like SONAR in submarines, or in the squeaking of bats. X-rays are electromagnetic radiation, like light. In either case, if you are using either for an imaging tool, you send the signal and observe how matter (like a baby, or bone) has changed the singal. This information can allow you to make a picture of what your machine "saw."
118278
Nothing.  Light is a form of radiation, just as are microwaves, radio waves, ultraviolet rays, x-rays and gamma rays.  However, ultraviolet, x-rays, and gamma rays contain much more energy than do light waves, so they can be damaging to biological tissue.
1147809
both are diff pls refer any Univ which will help u to know better
581073
Radiation. The X referred to the fact that at the time, the type of radiation was unknown, and the name X-ray stuck.\n\n"On November 8, 1895, Wilhelm Conrad Röntgen, a German scientist, began observing and further documenting X-rays while experimenting with vacuum tubes. Röntgen, on December 28, 1895, wrote a preliminary report "On a new kind of ray: A preliminary communication". He submitted it to the Würzburg's Physical-Medical Society journal. This was the first formal and public recognition of the categorization of X-rays. Röntgen referred to the radiation as "X", to indicate that it was an unknown type of radiation. The name stuck, although (over Röntgen's great objections), many of his colleagues suggested calling them Röntgen rays. They are still referred to as such in many languages. Röntgen received the first Nobel Prize in Physics for his discovery."
398123
higher \n\nX-rays are a high-energy type of electromagnetic (EM) radiation. X-ray radiation has a much shorter wavelength than visible light, so X-ray photons have much higher energies than photons of light.
219292
X-ray is an electromagnetic wave.it means that its energy is proportional to its frequency. when an electromagnetic wave collides to a material several phenomena occur.one of them is absorption.the amount of absorption depend on mass absorption coefficient and thickness of material.as density increase , this coefficient will increase and energy of transmitted beam  decrease.  \nX-ray has very high frequency (very high energy) that is harmful for human tissue.consequently lead outfit or barriers is used to absorb high fraction energy of x-ray beam. lead density=11  mean mass absorption=340\ncompare with Aluminum density=2.7   mean mass absorption=77
755040
Light spectra is essentially due to the electronic levels, not the nucleus (the nucleus emission/absorption would be at much higher frequency, in the gamma range); and there are no notable difference between the electronic energy level due to the extra neutron deuterium has in its nucleus; therefore very little difference in the visible band between protium and deuterium.
477357
all the difference is, is that the radioactive material is giving off electromagnetic waves because it has been charged by something that gave off a large amount of magnetic waves, such as the sun... radiation is just another form of heat/energy, and it is just radiating the heat/energy it has gotten, and when it gets rid of the energy, it will stop radiating...and unstable materials, react with other elements, like if u drop lithium in water, boom, because it has not enough valence electrons and is lower on the periodic table, so it tries to bond with others to get/give valance electrons
1158757
t-ray technology, basically work similar to x-rays the only difference is it focuses in on a molecules distinct vibration pattern, all molecules vibrate at different rate based on the item, so for instance if you set the machine to focus on the molecules in a spoon and you have one in your pocket it will show on the screen, same goes say for cancer cells even if they are the size of just one molecule, think stocks and big $$$$$ because the implinatation in different industries is unlimited, security, medical, construction, so on
531071
The major difference is that MRI scanners CAN NOT image bone.\n\nUsing a very powerful magnet and pulsing radio waves the detection coils in the MRI scanner read the energy produced by water molecules as they mis-align themselves after each RF alignment pulse. The collected data is reconstructed into a two dimentional illustration through any axis of the body. Bone is virtually void of water and therefore does not generate any image data. This leaves a black area in the images. MRI scanners are best suited for imaging soft tissue.\n\nCT, Computerized Axial Tomgraphy, uses xrays to generate images of the body, including bone. In the CT scanner the x-ray tube, (source) rotates around the patient laying on the table. On the opposite side of the patient from the tube is the x-ray detector. This detector recieves the beam that makes it through the patient. The beam is sampled via some 764 channels, (approximate number of channels). The signal received by each channel is digitized to a 16 bit value and sent to the reconstruction processor. Measurements are taken about 1000 times per second. Scan rotations are usually 1 to 2 seconds long. Each view/channel chunk of scan data is compared to calibration scan data of air, water and polyethelyne, (soft plastic) previously acquired in the exact same relative location. The comparisons allow the image pixels to have a known value for a particular substance in the body regardless of differences in patient size and exposure factors. The more samples, or views, the better the picture. By doing the math you can see that a huge amount a data is acquired to generate one CT slice. 15 years ago it would take a supercomputer called an Array Processor almost a minute to reconstruct the image, now it happens within seconds. Doctors can look at the image and determine what they are looking at simply by the lightness or darkness of the grey areas on the monitor. CT scanners are not able to make still-life images of fast moving things like the heart.