INDEX photoionization

The positions of the levels are given with respect to the CB. Ei0 is obtained by adding 41.2 meV to the position of the 2p i line. The peak absorption has been determined after subtraction of the photoionization background. Features observed at 77 K by [86] have also been included with index a... 

Technology based on noncontact sampling with photoionization sources http //www.morpho.com/detection/ Originated as Ion Track, Inc., then GE-Interlogix now part of Safran Group http //www.nuctech.com/templates/ T Second EN/index.aspx nodeid=148... 

GC O systems are often used in addition to either a FID or a mass spectrometer. With regard to detectors, splitting column ow between the olfactory port and a mass spectral detector provides simultaneous identi cation of odor active compounds. Another variation is to use an in-line, nondestructive detector such as a TCD [64] or a photoionization detector [65]. Especially when working with GC-0 systems equipped with detectors that do not provide structural information, retention indexes are commonly associated to odor description supporting peak assignment. 

Line emission from [FdQ] is produced by dectron collisions from fast shocks and possibly hard photoionization (PJ.). As wdl as the correct ionization conditions, we seem to require an enhanced abundance of Iron in the gas phase (Greenhouse ei aX. 1991). Such a grain destruction medianism would result from a SN blast wave, or other fast shocks. The non-thermal radio emission from starburst galaxies is due to SNRs and superwinds, fri Seyfert galaxies this emission is often associated with jets or lobes powered by processes at very small scales (possibly a black hole). It can be difficult to separate these different mechanisms by radio emission or spectral index alone. 

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