r-Process
The capture of neutrons on a very rapid time scale (i.e., one in which a nucleus can absorb neutrons in rapid succession, so that regions of great nuclear instability are bridged), ...
R-PROCESS - Rapid (hence "r") absorption of neutrons by atomic during a supernova explosion when the neutron flux is very high (~1022 neutrons per cm2 per second).
R-process - The process of building up massive nuclei in which neutrons are captured at a rate faster than the newly produced nuclei can undergo radioactive decay ...
R-PROCESS
A set of reactions in nucleosynthesis where neutrons are added to nuclei more rapidly than those nuclei can undergo radioactive decay.
R-process
S-process
Neutron radiation and the Sievert radiation scale
[edit] Neutron sources ...
R-Process: The huge numbers of neutrons given off during a supernova explosion allow for the rapid (hence "r") absorption of neutrons by various elements which transforms them into elements higher up in the periodic table.
The r-process reaction, which is likely to occur in type II supernovae, produces about half of all the element abundance beyond iron, including plutonium, uranium and californium.
13. The r-process occurs only during the first few minutes of a supernova explosion. (Hint)
14. Stellar nucleosynthesis can account for the existence of all elements except hydrogen and helium. (Hint) ...
rapid process (r-process) During the final destruction of a high-mass star in a supernova explosion, a high flux of neutrons is released as iron nuclei are ripped apart.
The essential feature of the r-process is the release of great numbers of neutrons in a very short time (less than 100 seconds).
This involves two processes; the slow neutron capture process (s-process) and the rapid neutron capture process (r-process).
Processes were supported by the hardware and could be created on any processor, and HeliOS provided inter-process communication (IPC) that worked no matter what the topography of the parallel array (transputers had four communication links each).
By way of contrast, its partner r-process (for rapid) takes place when there are a sufficient supply of free neutrons for additional neutrons to be acquired in the atomic nucleus before the captured neutron has a chance to beta decay.
If this surmise be correct, we are witnessing in clusters a counter-process of progress of a nova. 7 7 Argus is surrounded by a nebula, the famous Keyhole nebula "; in this respect it resembles Nova Persei.
 See also: Elements, Element, Temperature, Time, Neutron
  
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