Monochromator, electron

If reliable thermochemical data [28,82] is required, the above influences have to be substantially reduced. [46] One way is to use an electron monochromator (accuracy up to 0.1 eV). [83,84] An electron monochromator is a device for selecting nearly monoenergetic electrons from an electron beam. [85] Alternatively, one can employ photoionization (PI) instead of El ... 

Photoionization yields even more accurate results ( 0.05 eV) than the electron monochromator. [86] In any case, the half width of the electron or photon energy distribution becomes small enough to detect detailed structural features of the... 

Laramee, J.A. Mazurkiewicz, P. Berkout, V. Deinzer, M.L. Electron Monochromator-Mass Spectrometer for Negative Ion Analysis of Electronegative Compounds. Mass Spectrom. Rev. 1996,15, 15-42. 

P7 Over the past decade, electron monochromator-mass spectrometry (EM-MS) has been shown to be a selective and sensitive technique for the analysis of a wide variety of electrophilic compounds in complex matrixes. Here, for the hrst time, three different dinitroaniline pesticides, flumetralin, pendimethalin, and trifluralin, have been shown to be present in both mainstream and sidestream tobacco smoke using an EM-MS system. (From Dane et ah, 2006)... 

Dane, A. J. Havey, C. D. Voorhees, K. J. The Detection of Nitro Pesticides in Mainstream and Sidestream Cigarette Smoke using Electron Monochromator-Mass Spectrometry. Anal Chem. 2006, 78, 3227-3233. 

The electron spectrometer consists of an electron source followed by an electron monochromator, a gas cell, and an electron... 

TEEM 10 805 Tunable-energy electron monochromator (beam)... 

Alternatively to direct supply from a heated filament, electrons of well-defined low energy can be delivered into the ion volume by an electron monochromator [90,93-95]. 

The experimental work has seen considerable development in the ability to produce electron beams with both a well defined energy and a narrow energy spread using electron monochromators of various types and also the ability to detect individual particles or photons. Today s experiments fully exploit these... 

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