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- Lung cancer (15648 bytes)
2: ...er|malignant tumour]] of the [[lung]]s. Most commonly it is bronchogenic carcinoma (about 90%). Lung c...
30: ...e confirmed lung cancer, scan results and often [[positron emission tomography]] (PET) are used to determine...
42: ... becoming quite large. The [[oncogene]] most commonly involved is ''L-myc''. The "oat" cell contains ...
79: Surgery is only an option in NSCLC and if the disease is limited...
91: ...f 40 [[Gray (unit)|Gy]] in many fractions is commonly used with curative intent, and smaller doses (20... - Argon (6952 bytes)
63: ...e the [[Earth's atmosphere|atmosphere]] contains only 0.934% volume of argon (1.29% mass). The [[Mars ...
69: ...le Ar-40 (11.2%) by [[electron capture]] and by [[positron emission]], and also transforms to stable Ca-40 (...
74: *[http://periodic.lanl.gov/elements/18.html Los Alamos National Laborato... - Arsenic (12497 bytes)
122: [[Positron emission|β<sup>+</sup>]]<br />
152: ...ty of ways over the past 200 years, but most commonly in the treatment of cancer. The [[FDA]] in 2000...
156: ... more expensive) than those made in [[silicon]]. Unlike silicon it is [[direct bandgap]], and so can b...
201: * [http://periodic.lanl.gov/elements/33.html Los Alamos National Laborato... - Fluorine (8588 bytes)
39: In aqueous solution, fluorine commonly occurs as the fluoride ion F<sup>-</sup>.
55: ... emits [[positron|positrons]], is often used in [[positron emission tomography]] because of its half-life of...
62: ... reactivity - it is separated from its compounds only with difficulty and then it immediately attacks ...
75: ...that is detectable in concentrations as low as 20 nL/L. It is recommended that the maximum allowable c...
80: *[http://periodic.lanl.gov/elements/9.html Los Alamos National Laborator... - Lutetium (10459 bytes)
151: ...utetium as a [[transition metal]], but it is commonly considered a [[lanthanide]].
168: ...003% of the element. Pure lutetium [[metal]] has only relatively recently been isolated and is very di...
173: ...pture]] (with some [[alpha emission|alpha]] and [[positron emission]]), and the primary mode after is [[beta...
183: *[http://pearl1.lanl.gov/periodic/elements/71.html Los Alamos National... - Aluminium (26079 bytes)
41: ...12 s|7.17×10<sup>5</sup>]][[year|y]] | dm=[[Positron emission|β<sup>+</sup>]] | de=1.17 | pn=26 |...
66: ...s]] (although its [[electrical conductivity]] is only 60% that of [[copper]], it's lighter in weight a...
70: *[[Powder]]ed aluminium is commonly used for [[silvering]] in [[paint]]. Aluminium f...
82: ... ordinary clay. He also assured the Emperor that only he, himself, and the Gods knew how to produce th...
97: ... its oxide is an extremely stable compound that, unlike rust on steel, does not flake off. The very re... - Potassium (12496 bytes)
142: ...|Ar-40]] (11.2%) by [[electron capture]] and by [[positron emission]], and decays to stable [[Calcium|Ca-40]...
144: The decay of K-40 to Ar-40 is commonly used as a method for dating rocks. The conventio...
157: *[http://periodic.lanl.gov/elements/19.html Los Alamos National Laborato... - Rubidium (10211 bytes)
153: [[Positron emission|β<sup>+</sup>]]<br />
204: ...>Rb, in the form of vapor is one of the most commonly-used atomic species employed for [[laser cooling...
216: ... The dates indicate the true age of the minerals only if the rocks have not been subsequently altered....
222: *[http://periodic.lanl.gov/elements/37.html Los Alamos National Laborato... - Sodium (8714 bytes)
40: ...ope|syn]] | hl=[[1 E7 s|2.602]] [[year|y]] | dm=[[Positron emission|β<sup>+</sup>]] | de=0.546 | pn=22 ...
82: ...tope]]s of sodium that have been recognized. The only stable isotope is Na-23. Sodium has two [[radioa...
91: *[http://periodic.lanl.gov/elements/11.html Los Alamos National Laborato... - Technetium (32113 bytes)
184: ...elements. On earth, technetium occurs naturally only in uranium ores as a product of spontaneous fiss...
187: ...ance similar to [[platinum]]. However, it is commonly obtained as a grey powder. Its position in the p...
189: ...[oxygen|O]]<sub>4</sub><sup>-</sup>.{{inote | ''LANL Periodic Table'', "Technetium" paragraph 3}} Com...
229: ... Building Blocks'', page 424, paragraph 2 and ''LANL Periodic Table'', "Technetium", paragraph 1}} Uni...
233: ...made by B.T. Kenna and P.K. Kuroda. {{inote | ''LANL Periodic Table'', "Technetium" paragraph 1}} The... - Titanium (20884 bytes)
120: ...).<!-- many sources incorrectly say this is the *only* element to burn in nitrogen --> Titanium is res...
122: ...s bombarded with [[deuteron]]s, emitting mainly [[positron]]s and hard [[gamma ray]]s. The metal is a dimorp...
127: ...educe grain size and as a deoxidizer but in [[stainless steel]] it is employed to reduce [[carbon]] co...
150: ...s well in many [[iron]] ores. Of these minerals, only ilmenite and rutile have significant economic im...
166: ...> powder is chemically inert, resists fading in sunlight, and is very opaque: this allows it to impart... - Electron (10516 bytes)
66: ... refer to both negatrons and '''[[positron]]s'''. Positrons have the same mass and an electric charge of the...
72: ... photon can be transformed into an electron and a positron by a process called [[pair production]].
78: ... could infer from its charge if the physics were only described by the [[classical electromagnetism|cl...
104: ... 0.511 [[MeV]] (511 [[keV]]). See also [[Electron-positron annihilation]].
119: * [[Positron]] - Star (12279 bytes)
3: ...h to appear as a disk instead, and to provide [[sunlight|daylight]].
11: ...ive star is long extinct, however, and currently only theoretical.
13: ...], a companion to AB Doradus A, which has a mass only 93 times that of [[Jupiter (planet)|Jupiter]]. S...
33: ...ough for further fusion to take place, supported only by [[degeneracy|degeneracy pressure]], called a ...
36: ... star to explode in a [[supernova]]. This is the only cosmic process that happens on human timescales;...
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