例句與造句

1. The damage from the more penetrating gamma radiation and 127 keV internal conversion electron radiation from the initial decay of Te-123 is moderated by the relatively short half-life of the isotope.
2. Excited Te-125 from EC decay of I-125 also emits a much lower-energy internal conversion electron ( 35.5 keV ), which does relatively little damage due to its low energy, even though its emission is more common.
3. The electron capture produces a tellurium-125 nucleus in an excited state with a half-life of 1.6 ns, which undergoes gamma decay emitting a photon or an internal conversion electron at 35.5 keV . A second electron relaxation cascade follows the gamma decay before the nuclide comes to rest.
4. The remaining approximately 12 % of 99m Tc decays are by means of internal conversion, resulting in ejection of high speed internal conversion electrons in several sharp peaks ( as is typical of electrons from this type of decay ) also at about 140 keV ( 99m Tc ?! 99 Tc + + e  " ).
5. Just as an atom may produce an internal conversion electron in place of a gamma ray if energy is available from within the nucleus, so an atom may produce an Auger electron in place of an x ray if an electron is missing from one of the low-lying electron shells . ( The first process can even precipitate the second one . ) Like IC electrons, Auger electrons have a discrete energy, resulting in a sharp energy peak in the spectrum.
6. It's difficult to find internal conversion electron in a sentence. 用internal conversion electron造句挺難的
7. This excited state of Te-123 produced is not the metastable nuclear isomer Te-123m ( the decay of I-123 does not involve enough energy to produce Te-123m ), but rather is a lower-energy nuclear isomer of Te-123 that immediately gamma decays to ground state Te-123 at the energies noted, or else ( 13 % of the time ) decays by internal conversion electron emission ( 127 keV ), followed by an average of 11 Auger electrons emitted at very low energies ( 50-500 eV ).