The phrase "a radiation of a" is not correct and does not convey a clear meaning in written English.
It may be intended to describe a specific type of radiation or phenomenon, but the phrasing is awkward and unclear.
Example: "The study focused on a radiation of a particular wavelength emitted by the source."
Alternatives: "a type of radiation" or "a form of radiation".
The 2D densities of the photo-induced carriers corresponding to the transition of 1H1E (the first valence subband of heavy holes to the first conduction subband of electrons) for the four samples are all estimated to be about 109 cm −2 under a radiation of a laser with a power of 60 mW.
Phylogenetic analyses revealed basal cyanobacterial branches (e.g. Gloeobacter), and two moderately supported lineages, one combining the majority of the β-cyanobacteria including all plastids (branch 1 in Figure 1), the other containing Paulinella and the PS-clade nested within a radiation of a few β-cyanobacteria, representing the clades PHOR, PRCHX and SELONG (branch 2 in Figure 1).
The origin and diversification of angiosperms led to marked changes in terrestrial ecosystems during the Late Cretaceous26, which probably provided a basis for a radiation of ants.
The tree of the Larderello sequences shown in Figure 3B shows a paraphyletic radiation of Galdieria-A into the four sites.
The extant CA-diversity in demosponges and hexactinellids is due to a reduction with a subsequent radiation of only a single ancestral CA lineage in both classes.
Once patients received a total radiation of 40 Gy a non-enhanced CT scan was performed for safety evaluation.
Coherence, a fixed relationship between the phase of waves in a beam of radiation of a single frequency.
Their findings led to the development of the maser, a device that emits microwave radiation of a single wavelength.
They emit radio radiation of a characteristic type, with a thermal spectrum that indicates that their temperatures are about 10,000 kelvins.
Both involve the absorption of radiation via an electronic transition, a loss of energy through either vibrational energy decay or nonradiative processes, and the subsequent emission of radiation of a lower frequency than that absorbed.
A gas molecule absorbs radiation of a given wavelength only if the energy can be used to increase the internal energy level of the molecule.
