Effects of Local Heating and Premelting in the Terminal Part of the e+ Track
2012 ◽
Vol 733
◽
pp. 15-18
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Keyword(s):
The terminal part of the e+ track (the positron blob) is formed during ionization slowing down and subsequent ion-electron recombinations produced by a positron. It releases up to 1 keV of energy, which is converted into heat within few picoseconds. If a bulk temperature of a medium is below, but close enough to its melting point, some region of a substance may melt, yielding a peculiar temperature dependence of the lifetime (LT) spectra. We have estimated properties of the molten region with a help of macroscopic heat con- duction equation and suggested a model describing temperature dependence of the ortho- positronium lifetime in frozen methanol, ethanol, butanol and water close to their melting points.
2008 ◽
Vol 580-582
◽
pp. 319-322
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Keyword(s):
2007 ◽
Vol 4
(10)
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pp. 3814-3818
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Keyword(s):
1965 ◽
Vol 38
(4)
◽
pp. 921-923
◽
1938 ◽
Vol 34
(3)
◽
pp. 459-464
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Keyword(s):
An investigation of the dissociation pressures and melting points of the system Copper-cuprous oxide
1912 ◽
Vol 87
(598)
◽
pp. 524-534
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Keyword(s):
1992 ◽
Vol 06
(01)
◽
pp. 1-24
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Keyword(s):
2009 ◽
Vol 83-86
◽
pp. 968-976
Keyword(s):