What is the importance of the anode and cathode locations on a x-ray machine?
118004
The anode is the High voltage end this is the source of the xrays.  It is like taking a picture with a camera if your subject is to close you would get just a blurry tan colored image. of a pimple. You may have heard that your tv screen is a source of xrays it is as the high energy elctrons from the cathode strike the screen(anode) they emit xrays. in an xray tube the electrons strike a metal plate.
230000
well x rays the name was coined by roentogen because he did not know what the rays were so he named them x raya, meaning unknown rays. he placed some ore of radiaactive material over negative film by mistake which was covereed by black paper to protect them from light. what amazed roentogen was that even though the films were not exposed to light they were spoilt. he later tried to study tehse rays but could not decipher what they were hence he named them x rays. x rays have penetrating power which is not so high hence it can cross through bone and tissue but not through metals and wood and stuff like that. the use of x rays in medicine is of great importance since its one of the most primary diagnostic investigation available given an extent of the damage caused to bones. damage to soft tissue is better appreciated by MRI and CT scans. repeated x ray exposure can cause  chromosomal abnormalities. even pregnant mother should be kept away from x rays and if anyone is pregnant and need to take an x ray for some need they should inform the radio technician about it is very likely to cause damage to the baby. prevention better than cure.
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The detection of X-rays is based on various methods. The most commonly known method are a photographic plate, or cassette, and rare earth screens.\n\nThe X-ray photographic plate is frequently used in hospitals to produce images of the internal organs and bones of a patient. The part of the patient to be X-rayed is placed between the X-ray source and the photographic plate to produce what is a shadow of all the internal structure of that particular part of the body being X-rayed. The X-rays are blocked by dense tissues such as bone and pass through soft tissues. Where the X-rays strike the photographic plate it turns black when it is developed. So where the X-rays go through "soft" parts of the body like organs and skin the plate turns black. Contrast compounds containing barium or iodine can be injected in the artery of a particular organ. The contrast compounds strongly block the X-rays and hence the circulation of the organ can be more readily seen.\n\nAnother method of detecting X-rays is a fluorescent plate. In modern hospitals a special plastic sheet is used in place of the photographic plate. The plastic sheet is read by a scanning laser beam. The resultant image is then stored in a computer. The plastic sheet can be used over and over again.
32437
What's with this question?  It's becoming a new chicken-or-egg, why-is-the-sky-blue question.\n\nMagnesium acts as a sacrificial anode.\n\nOxygen in the atmosphere reacts with iron to oxidize it in what is called a redox reaction (oxidation/reduction). The redox reaction is defined by the exchange of electrons--uncharged iron will lose two electrons to an oxygen molecule, creating iron oxide. Water quicken rusting by serving as a catalyst. Dissolved oxygen in the water reacts, and as the water dries, the oxygen becomes increasingly concentrated.\n\nEngineers will prevent wide-spread rusting by creating what is called a "sacrificial anode." You might know the names anode and cathode from the ends of a battery. Batteries function by employing two seperate redox reactions, where one end corrodes to release electrons, which travel to the other end and react with metal cations in solution, turning them to a solid metal. The corrosion of iron is prevented by creating a sacrificial anode out of something even more reactive than the iron (usually magnesium). The corrosion of the magnesium releases excess electrons in the iron, which delays corrosion of the iron--oxygen can grab the free electrons created by the corrosion of magnesium without needing to corrode the iron.
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try out an electrolysis experiment with the battery u wil get to know abt the charges of the battery the place where the metal move is the negative charged one and where the non metal moves tht is the positive terminal
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You cannot have one without the other.  If there are cations present, there will be an equally charged pile of anions there with it.  The charge on any system is always neutral (or very close - it may have some electrical potential but relatively speaking, it's very low).
757467
Radiology uses computers all the time.  For example, x-rays are taken on an imaging plate and are processed within seconds to create an image.  Mammograms, chest x-rays, and some Cat Scans use a device called CAD (computer aided detection) to find abnormal pixel variations and determine the possibilities of cancer.
535149
Actually the copper doesn't come directly from the solution...\n\nNot sure how much detail you want, but it does use electroplating.  This means that it uses electricity to plate metal on an object.  The stainless steel object is put on the "positive end" and a lump of pure copper is placed on the "negative end."  A low voltage is used because a high voltage plates too fast, and the layer will peel off quickly.  If copper is the plating, then the solution must be a fairly low-concentration copper sulfate (CuSO4) solution, meaning that copper is the only metal present in the electrochemical cell.  The negative end is called the anode, and this decreases in mass as its copper ions are taken to the positive end -- the cathode.  \n\nThis method of plating multiple metals is actually fairly common, because the properties of each one can be combined.  Nickel can be used for farm equipment and engines because it can withstand a lot of force, silver is used for decoration, chromium is used to withstand a lot of use (like a spoon).  Copper is able to conduct heat and helps food cook evenly.
266089
Go here: http://ts.nist.gov/ts/htdocs/230/235/appxc/appxc.htm#2
327609
If I've understood what you're asking then:\nA\nCd(s) + Ag2+ -> Cd2+ + Ag(s) \n\nCadmium occurs at Anode and the Silver would deposit on the Cathode\n\nB (I hate Manganese equations and the partial above is incorrect)\n\nMnO2 + 4H+ + 2AgBr -> Mn2+ 2Br- + 2Ag + 2H2O\n\nMnO2 @ Anode\nAgBr @ Cathode\n\nC\n\n(PtCl4)2- + 4Ag -> Pt + 4AgCl \nAg @ anode\n(PtCl4)2- @ Cathode
1060369
Arc welding electrodes are identified using the A.W.S, (American Welding Society) numbering system and are made in sizes from 1/16 to 5/16 . An example would be a welding rod identified as an 1/8" E6011 electrode. \nThe electrode is 1/8" in diameter \n\nThe "E" stands for arc welding electrode. \n\nNext will be either a 4 or 5 digit number stamped on the electrode. The first two numbers of a 4 digit number and the first 3 digits of a 5 digit number indicate the minimum tensile strength (in thousands of pounds per square inch) of the weld that the rod will produce, stress relieved. Examples would be as follows: \n\nE60xx would have a tensile strength of 60,000 psi E110XX would be 110,000 psi \n\nThe next to last digit indicates the position the electrode can be used in. \n\nEXX1X is for use in all positions \nEXX2X is for use in flat and horizontal positions \nEXX3X is for flat welding\nThe last two digits together, indicate the type of coating on the electrode and the welding current the electrode can be used with. Such as DC straight, (DC -) DC reverse (DC+) or A.C.\n\n\nWelding Electrodes are wires or rods of metals or their alloys which are mainly used in welding. The primary purpose of using an electrode in welding is to maintain the arc needed for welding as well as supply the filler material at the point where the welding is done. It actually serves as a conductor for the current required to form the welding arc. The electrode may be consumed during the welding operation or may be just acting as a conductor. The metal electrode is mostly used as a cathode in direct current welding, whereas in alternating current welding the electrode is neither a cathode nor an anode.\n\n\n\nWelding Process \n\n\nA welding arc is created between the two metal pieces to be welded, using an electric power supply which can be either DC or AC. The power supply is so high that the arc created by it can melt the metal parts which form a part of the arc. If the electrode is the filler type, the arc created between the electrode and the base metal melts the electrode. The molten electrode serves at the filler material, enduring additional bondage between the welded parts. Additional filler materials and flux are used along with the electrodes to provide enhanced properties of the weld. Sometimes, even a special environment of a shielding gas is also provided to enhance the welding process.\n\n\n\nTypes of Welding Electrodes \n\n\nFactors which influence the classification of  welding electrodes are\n\n\n        Consumed electrode\n\n        Non-consumed electrode
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Helpful:\n1. treatment of cancer\n2. used to produce electricity\n3. xrays...used for diagnosis\n\nHarmful:\n1. major cause of cancer\n2. radiation poisoning
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The chemicals of which it is made, and particularly the elements of the anode and cathode.  Each element has an electrode potential, ahd the voltage of a battery is the difference of these for the two electrodes.
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Among the important early researchers in X-rays were Professor Ivan Pului, Sir William Crookes, Johann Wilhelm Hittorf, Eugen Goldstein, Heinrich Hertz, Philipp Lenard, Hermann von Helmholtz, Nikola Tesla, Thomas Edison, Charles Glover Barkla, Max von Laue, and Wilhelm Conrad Röntgen.\n\nPhysicist Johann Hittorf (1824 - 1914) observed tubes with energy rays extending from a negative electrode. These rays produced a fluorescence when they hit the glass walls of the tubes. In 1876 the effect was named "cathode rays" by Eugen Goldstein. Later, English physicist William Crookes investigated the effects of energy discharges on rare gases, and constructed what is called the Crookes tube. It is a glass vacuum cylinder, containing electrodes for discharges of a high voltage electric current. He found, when he placed unexposed photographic plates near the tube, that some of them were flawed by shadows, though he did not investigate this effect.\n\nTesla\nIn April 1887, Nikola Tesla began to investigate X-rays using high voltages and vacuum tubes of his own design, as well as Crookes tubes. From his technical publications, it is indicated that he invented and developed a special single-electrode X-ray tube, which differed from other X-ray tubes in having no target electrode. He stated these facts in his 1897 X-ray lecture before the New York Academy of Sciences.\n\nThe principle behind Tesla's device is nowadays called the Bremsstrahlung process, in which a high-energy secondary X-ray emission is produced when charged particles (such as electrons) pass through matter. By 1892, Tesla performed several such experiments, but he did not categorize the emissions as what were later called X-rays, instead generalizing the phenomenon as radiant energy. He did not publicly declare his findings nor did he make them widely known. His subsequent X-ray experimentation by vacuum high field emissions led him to alert the scientific community to the biological hazards associated with X-ray exposure.\n\nHertz\nIn 1892, Heinrich Hertz began experimenting and demonstrated that cathode rays could penetrate very thin metal foil (such as aluminium). Philipp Lenard, a student of Heinrich Hertz, further researched this effect. He developed a version of the cathode tube and studied the penetration by X-rays of various materials. Philipp Lenard, though, did not realize that he was producing X-rays. Hermann von Helmholtz formulated mathematical equations for X-rays. He postulated a dispersion theory before Röntgen made his discovery and announcement. It was formed on the basis of the electromagnetic theory of light (Wiedmann's Annalen, Vol. XLVIII). However, he did not work with actual X-rays.\n\nRöntgen\nOn 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, where available see the list of titles for versions of this article in other languages. Röntgen received the first Nobel Prize in Physics for his discovery.\n\nRöntgen was working on a primitive cathode ray generator that was projected through a glass vacuum tube. Suddenly he noticed a faint green light against the wall. The odd thing he had noticed, was that the light from the cathode ray generator was traveling through a bunch of the materials in its way (paper,wood, and books). He then started to put various objects in front of the ge
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XeF  + e-  ============> Xe  + F-      E°/V = 3.4 with reference to the standard hydrogen electrode
381375
Too little info.  Are you building, renting, or leasing?  Are you going to have digital x-ray equipment and computers in every op.  Are you going to have a panorex machine regular or digital?  How much square footage will you have to work with?  Statum or autoclave or both?  x-ray heads with wall mountings can be 20 grand and up.  The sensor alone for digital x-rays can be 10 thousand and up.  The list goes on and on, I see that you are a hygienist.  The best thing to do is start researching prices of different equipment through many of the dental suppliers, Patterson, Becker and Parken, etc.  They all have huge catalogs of supplies and equipment.  I would venture a guess that you are looking at close to 80 to 100 grand alone in dental equipment, unless you are going bare bones.  I would hate to be in a dentist's shoes wanting to start their own practice.  Huge overhead!!!
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D\nThe grid initiall attracts electrons from the anode because it it psitively charged in relation to the anode. By varying the charge on the grid you can control the electron flow. As the electrons near the approach the grid they are attracted to the more positive charge on the cathode and most continue through the grid to the cathode. A small number flow through the grid. The number attracted by the cathode divided by the number attracted by the grid gives you the gain of the triode it is when used as amplifier. It operates like a bipolar junction transistor