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X-Ray
Invented by Wilhelm Conrad Röntgen in 1895, X-ray imaging is used in hospitals to detect fractures to bone, as well as abnormalities to soft tissues.
1,826 Questions
Can an x-ray show if a dog swallowed wood?
The higher the voltage used to produce the x-rays the shorter the wavelength and therefore the higher the penetrating power. Wood is not a very dense material and does not contain elements of high density and is very easily penetrated by all but the softest x-rays. X-rays used in radiology penetrate wood to the point that it is practically radiotransparent.
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An X-ray is a type of electromagnetic radiation. It has a higher frequency than visible light and ultraviolet radiation, but a lower frequency than gamma rays.
X-rays are special in that they can go through stuff that stops visible light, so they can be used to take pictures of things that are inside other things - like your bones.
But "an x-ray" can also be used as the name for the procedure of having an x-ray picture taken.
iT'S LIKE WHEN YOU BREAK A BONE OR YOU DON'T HAVE TO BREAK NOTHiNG THEY DO A XRAY SO THEY CAN SEE WHERE THE BONE iS BROKEiN & WHAT THEY NEED TO DO FOR THE BROKEN BONE.No, the word x-ray is a common noun, a word for any x-ray of any kind.
A proper noun is the name of a person, place, thing, or a title; for example:
- "The Man With the X-Ray Eyes", 1963 movie with Ray Milland
- X Ray Drive, Gastonia, NC; X Ray Street, Bloomer, WI; or X-Ray Lane, Dallas, TX
- The 200mA Medical Diagnostic X-Ray Machine, manufactured by Taixing Suxing Co., Ltd.
What does the x-ray of DNA look like to you?
It depends on how overexposed it is. Overexposed means the image is too dark to be of acceptable diagnostic quality because some image details may be lost (burned out). Overexposed can mean it is a bit too dark, or it can mean the entire image is completely black.
Where did Wilhelm roentgen invent X-rays?
W. Roentgen invented the x-ray in 1895.
Ok I know it's a matter of semantics, but Dr. Roentgen was in fact the "discoverer" of Roentgen-Rays on November 8th, 1895. "Roentgen" was too difficult a word for pre-industrial people to wrap their minds around so they shortened it to "X-Rays."
To say that he "invented" them is a bit of a stretch considering that distant stars were emitting X-Rays billions of years before his birth. It's a bit like saying that Isaac Newton "invented" gravity. duh...
I know, minutiae, idiot savant, yada yada, yada. Whatever. A Who is a Who, no matter how small.
actually they were called x-rays because they were determined as a unknown ray at the time.
An X-ray scanner can be disposed of by recycling. The X-ray tube presents a bit of a problem, but the electronics have scrap value, as does the metal in the housing.
An X-ray picture (radiograph) taken by Röntgen of Albert von Kölliker's hand at a public lecture on 23 January 1896[6]
During 1895 Röntgen was investigating the external effects from the various types of vacuum tube equipment-apparatus from Heinrich Hertz, Johann Hittorf, William Crookes, Nikola Tesla and Philipp von Lenard-when an electrical discharge is passed through them.[7] In early November he was repeating an experiment with one of Lenard's tubes in which a thin aluminum window had been added to permit the cathode rays to exit the tube but a cardboard covering was added to protect the aluminum from damage by the strong electrostatic field that is necessary to produce the cathode rays. He knew the cardboard covering prevented light from escaping, yet Röntgen observed that the invisible cathode rays caused a fluorescent effect on a small cardboard screen painted with barium platinocyanide when it was placed close to the aluminum window. It occurred to Röntgen that the Hittorf-Crookes tube, which had a much thicker glass wall than the Lenard tube, might also cause this fluorescent effect.
In the late afternoon of 8 November 1895, Röntgen determined to test his idea. He carefully constructed a black cardboard covering similar to the one he had used on the Lenard tube. He covered the Hittorf-Crookes tube with the cardboard and attached electrodes to a Ruhmkorff coil to generate an electrostatic charge. Before setting up the barium platinocyanide screen to test his idea, Röntgen darkened the room to test the opacity of his cardboard cover. As he passed the Ruhmkorff coil charge through the tube, he determined that the cover was light-tight and turned to prepare the next step of the experiment. It was at this point that Röntgen noticed a faint shimmering from a bench a meter away from the tube. To be sure, he tried several more discharges and saw the same shimmering each time. Striking a match, he discovered the shimmering had come from the location of the barium platinocyanide screen he had been intending to use next.
Röntgen speculated that a new kind of ray might be responsible. 8 November was a Friday, so he took advantage of the weekend to repeat his experiments and make his first notes. In the following weeks he ate and slept in his laboratory as he investigated many properties of the new rays he temporarily termed X-rays, using the mathematical designation for something unknown. Although the new rays would eventually come to bear his name in many languages where they became known as Röntgen Rays, he always preferred the term X-rays. Nearly two weeks after his discovery, he took the very first picture using x-rays of his wife's hand, Anna Bertha. When she saw her skeleton she exclaimed "I have seen my death!"
The idea that Röntgen happened to notice the barium platinocyanide screen misrepresents his investigative powers; he had planned to use the screen in the next step of his experiment and would therefore have made the discovery a few moments later.
At one point while he was investigating the ability of various materials to stop the rays, Röntgen brought a small piece of lead into position while a discharge was occurring. Röntgen thus saw the first radiographic image, his own flickering ghostly skeleton on the barium platinocyanide screen. He later reported that it was at this point that he determined to continue his experiments in secrecy, because he feared for his professional reputation if his observations were in error.
Röntgen's original paper, "On A New Kind Of Rays" (Über eine neue Art von Strahlen), was published 50 days later on 28 December 1895. On 5 January 1896, an Austrian newspaper reported Röntgen's discovery of a new type of radiation. Röntgen was awarded an honorary Doctor of Medicine degree from the University of Würzburg after his discovery. He published a total of 3 papers on X-rays between 1895 and 1897. Today, Röntgen is considered the father of diagnostic radiology, the medical specialty which uses imaging to diagnose disease.
What is the medical term meaning X-ray imaging of heart and vessels?
Angiography is an x-ray imaging technique usually used to image hearts and vessels. New imaging techniques are also available for the same purpose, for example, CT angiography and MR angiography.
Who used the x-ray machine first?
By some doctor at any hospital , of course
just kidding i don't know
How did the invention of the x-ray machine change the world?
It gave woman that weren't traditonally aloud to work outside their homes a job. It also saved bunches of soldiers lifes who were in war. It heavily influenced the 20th century. : )
x-rays can be used to detect broken bones and lodged objects.
How many years of schooling do you need for x-ray tech?
After high school graduation, you need two years in an accredited college program in order to be eligible to take the ARRT exam. Once you pass the exam, you can legally work in all 50 states.
Magnification factor in x-ray?
Your magnification factor is SID divided by OID. [MF = SID/OID]
So for example:
If your SID was 40 and your SOD was 32
Your magnification factor = 40/32 = 1.25 -- This means the image will appear 25% larger than the actual object. (It's the size of 1 plus 25 percent more of the original.)
Example 2 if you're trying to figure out original object size:
Your object size equals your image size divided by the magnification factor (MF). [object size = image size/ MF]
If you have an object on an image that measure 70 inches when your SID was 100 and your OID was 65, how big was the original object?
MF=100/65= 1.54 (rounded)
Object size = 65/1.54 = 42.21
The object imaged was 42.21 inches before magnification.
What kind of wave is an X-ray?
An x-ray are an example of electromagnetic radiation. They are highly energetic and are capable of ionizing most materials. This also makes them hazardous to human life; they can damage DNA molecules and cause cancer.
All electromagnetic waves are transverse (oscillation is transverse to the direction of motion).
What elements compound is used to produce x-ray images?
An ordinary x-ray machine such as in medicine or an airport scanner, consists of a cathode and an anode situated in an evacuated glass envelope.
Once accelerating voltages are over 50 000 Volts, x-rays will be generated at the anode.
Ordinary cathode materials suffice, and these commonly have a tungsten heater, maybe with a thorium coating, for this material emits electrons easily when heated.
The anode is the source of the x-rays, and commonly is angled such that the x-rays emitted will not travel straight back to the cathode. Because of the energies involved, the control of the direction of the x-rays is rather limited (read very difficult) and trying to focus the x-ray beam is indeed difficult.
Control of the beam is often accomplished by having a small tubular opening in an x-ray opaque material, thus simulating an attempt at collimation.
There are however x-ray sources that do not directly generate their own radiation, they instaed encapsulate a radioactive source which has inbuilt radiation properties. Cobalt 60 for example may be a source of neutrons, and one common use of this high energy source is for sterilizing medical equipment. Of course it is also used as a source for medical x-rays as well. In appearance, this material superficially looks like iron, and there has been at least one incident where a C60 source has been recycled (along with other scrap, in an horrific error) into reinforcing bars.
It may be that Cs137 is also used as an x-ray source, but my brief search failed to find a reference.
When the doctor orders an AP chest x-ray the x-rays enter the patient body from the back or front?
front
Where are x-rays emitted from?
The energy to generate X-rays for medical imaging comes from high voltage. High voltage is applied to an X-ray tube to accelerate electrons across the space between the anode and cathode in the tube. The higher the voltage, the more the electrons are accelerated. The electrons slam into the cathode, which is a metal target. This "knocks loose" some electrons in the metallic crystal structure of the metal of the cathode, and when the electrons that have been slammed into give up energy to return to a "relaxed" state, they give off very high energy electromagnetic radiation - X-rays.
How does the filtration of the x ray beam protect the patient?
Filtration is the process of increasing the mean energy of the x-ray beam by passing it through an absorber. The primary x-ray beam is polychromatic, that is, the beam contains a spectrum of photons of different energies and the average energy is one-half to one-third of the peak energy. Many of the photons produced are low energy and, if they escape through the glass window of the tube, they are absorbed by the first few centimeters of tissue and contribute nothing to the exposure of the film. Only the higher energy photons can penetrate the patient and reach the film to assist in making the radiograph The dose of radiation received by the patient is highest in the first few centimeters of tissue because of absorption of this low energy portion of the x-ray beam. The amount of scattered radiation is higher with an unfiltered beam because of the number of low energy photons. So, it is advantageous to both the patient and to the technician to use a filtered x-ray beam.
Can you see porcelain on xray?
Only is rare cases does this method work. The most famous case was one in which ambient static electricity, artificially built up on the porcelain, caused the imtransient flux residue (present within porcelain) to release an ionic discharge. This resulted in a brief x-ray blocking effect, however it also caused an immediate and severe case of 'squirtus inmuhpantsies', or common diarhea. Not recommended.
What is the purpose of x ray film?
The purpose of x-ray film is to capture an image made when you are exposed to carefully controlled x-rays, so your physician can visualize some aspects of yuor insides.
