Radon (13761 bytes)
5: | colspan="2" align="center" | [[Astatine]] - '''Radon'''
15: | Radon, Rn, 86
127: ...fe]] of 3.8 days and is used in [[radiotherapy]]. Radon gas can accumulate in houses and cause lung cance...
130: ...can react with radon and form [[radon fluoride]]. Radon [[clathrate]]s have also been reported.
132: ... saturated zone of a soil frequently has a higher radon content than the unsaturated zone due to diffusio...

Johann Radon (757 bytes)
1: '''Johann Radon''' ([[December 16]], [[1887]]–[[May 25]], [...
5: * his part in the [[Radon-Nikodym theorem]];
6: * the [[Radon measure]] concept of [[measure]] as [[linear func...
7: * the [[Radon transform]], in [[integral geometry]], based on i...
8: * the [[Radon's theorem]].

Radon transform (1314 bytes)
1: In [[mathematics]], the '''Radon transform''' in two dimensions is the [[integral ...
5: The Radon transform integrates a function over lines in the...
7: ...lanes) was introduced in a 1917 paper by [[Johann Radon]], who provided formulae for the inverse transfor...
9: A discrete Radon transform is a [[Hough transform]].
11: The Radon transform is useful in [[computed axial tomograph...

Radon measure (233 bytes)
1: In [[mathematics]], a '''Radon measure''' is a [[Measure_(mathematics)|measure]]...

Radon fluoride (837 bytes)
1: .../b> ([[Radon|Rn]][[Fluorine|F]]) is a compound of radon, an inert or [[noble gas]]. Inert gases are [[ch...
2: ... limited because the longest-lived [[isotope]] of radon has a [[half-life]] of only 3.82 days.

Radon-Nikodym theorem (1715 bytes)
1: In [[mathematics]], the '''Radon-Nikodym theorem''' is a result in [[functional an...
7: ...mmonly written ''dQ''/''dP'' and is called the '''Radon-Nikodym derivative'''. The choice of notation and...
17: The theorem is named for [[Johann Radon]], who proved the theorem for the special case wh...

Radon's theorem (2405 bytes)
1: In [[geometry]], '''[[Johann Radon|Radon]]'s [[theorem]]''' on [[convex set]]s states that...
6: The proof of Radon's theorem is not too difficult. Suppose <math>X =...

Niton (140 bytes)
3: #For the historic name for the gas Radon, see [[Radon]]

Friedrich Ernst Dorn (717 bytes)
1: ...[[Germany|German]] [[physicist]] who discovered [[radon]] in [[1900]].
3: ...ng "shining' due to the phosphorescence of cooled radon.

Filtered back projection (213 bytes)
1: ...[[reconstruction algorithm]] used to invert the [[Radon transform]].

Ununoctium (2966 bytes)
6: | rowspan=3 valign=center|[[radon|Rn]]<br>'''Uuo'''<br>&nbsp;&nbsp;&nbsp;<br>&nbsp;...
23: ...sup>2</sup>7p⁶<br> (a guess based upon radon)
29: ...as such, some research has referred to it as "eka-radon". It would only be the second radioactive gaseous...

List of environmental health hazards (364 bytes)
3: * [[radon]] and other natural sources of [[radioactivity]]

List of integration and measure theory topics (2396 bytes)
38: *[[Radon measure]]
49: *[[Radon-Nikodym theorem]]
73: *[[Radon transform]]

Absolute continuity (2002 bytes)
21: ...; is &sigma;-finite, then &mu; has a density, or "Radon-Nikodym derivative", with respect to &nu;, i.e., ...

Tomographic reconstruction (2686 bytes)
1: ...'tomographic imaging''' was laid down by [[Johann Radon]]. It is applied in [[Computed Tomography]] to ob...
22: ...from the above equation means finding the inverse Radon transform.

Noble gas (3180 bytes)
1: ...[[neon]], [[argon]], [[krypton]], [[xenon]] and [[radon]].
7: ...ds. [[Radon]] has reacted with fluorine to form [[radon]] [[fluoride]] (RnF) which glows with a yellow li...
13: ... a an empty space on the [[periodic table]] under Radon. This means that there could theoretically be ano...

List of elements by density (3537 bytes)
1: ...d pressure. (The first elements from Hydrogen to Radon are gases at normal room temperatures.)
41: | [[Radon]]

Robert Whytlaw-Gray (278 bytes)
1: ...Königsberg]], and is known for his discovery of [[radon]].

Soyuz 23 (2436 bytes)
5: ...<td>&#1056;&#1072;&#1076;&#1086;&#1085; (Radon - "Radon")</td></tr>

Reconstruction algorithm (656 bytes)
1: ...ned largely based on the [[mathematics]] of the [[radon transform]], statistical knowledge of the data ac...

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