XANES Registration by Electron Beam Position Scanning for Time-Resolved Experiment

Nikitenko, S. G.; Tolochko, B.P.; Aleshaev, A.N.; Kulipanov, G.N.; Mishnev, S. I.

doi:10.1051/jp4/1997093

Cited by 3 publications

(3 citation statements)

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“…Experimental schemes for Quick-XAFS registration. 383 (a) Energy-dispersive XAFS, (b) fast registration of XAFS by varying the electron trajectory within the channel of a storage ring. Fe Figure 31.…”

Section: Discussionmentioning

confidence: 99%

“…378,379 Under the term Quick-EXAFS, the techniques with a rapid rotation of a standard crystal monochromator or so-called energy-dispersive EXAFS with a fixed crystal polychromator and a linear detector, are usually meant. 380 ± 382 Recently, 383 a new method aimed at a decrease in the XAFS data acquisition time has been proposed. It is based on a variation of the electron beam trajectory within insertion devices by adjusting operational parameters of the electromagnetic focusing system (Fig.…”

Section: Time-resolved Studies Of Processesmentioning

confidence: 99%

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X-Ray synchrotron radiation in physicochemical studies

Zubavichus¹,

Slovokhotov²

2001

Russ. Chem. Rev.

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Modern modifications of the conventional X-ray meth-Modern modifications of the conventional X-ray methods of physicochemical analysis (X-ray and electron spectroscopy, ods of physicochemical analysis (X-ray and electron spectroscopy, diffraction methods, diffraction methods, etc. etc.) and new combined techniques using) and new combined techniques using X-ray synchrotron radiation are considered. Unique character-X-ray synchrotron radiation are considered. Unique characteristics of synchrotron radiation are noted, namely, continuous istics of synchrotron radiation are noted, namely, continuous spectrum, exceptionally high intensity, polarisation, coherence, spectrum, exceptionally high intensity, polarisation, coherence, pulse nature, pulse nature, etc. etc. The key trends in the use of combined methods The key trends in the use of combined methods in chemistry and materials science including studies of substances in chemistry and materials science including studies of substances under extreme conditions, the study of rapid processes, studies under extreme conditions, the study of rapid processes, studies with high spatial resolution are discussed. The achievements in the with high spatial resolution are discussed. The achievements in the applications of synchrotron radiation are illustrated by examples applications of synchrotron radiation are illustrated by examples from various fields of chemistry and related sciences. The biblio-from various fields of chemistry and related sciences. The bibliography includes 405 references. graphy includes 405 references.. .

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Section: Discussionmentioning

confidence: 99%

Section: Time-resolved Studies Of Processesmentioning

confidence: 99%

X-Ray synchrotron radiation in physicochemical studies

Zubavichus¹,

Slovokhotov²

2001

Russ. Chem. Rev.

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“…In order to minimize the effects of radiation damage of protein crystals, the best solution is to de®ne a time window in the incident X-ray beam containing a single bunch, and to repeat this procedure at a frequency depending on the excitation conditions until suf®cient statistics are reached in the diffraction pattern. De®nition of a short time window may be achieved by de¯ecting the electron beam in the storage ring with a magnet (Nikitenko et al, 1996). However, such a facility is not available on most storage rings, e.g.…”

Section: Introductionmentioning

confidence: 99%

Extraction of single bunches of synchrotron radiation from storage rings with an X-ray chopper based on a rotating mirror

Kosciesza

Bartunik

1999

J Synchrotron Radiat

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An ultrafast shutter has been developed for alteration of the time structure of synchrotron radiation from storage rings in the hard X-ray regime. In test applications on the wiggler beamline BW6 at DORIS, single bunches were extracted from the incident pulsed synchrotron radiation with minimum bunch-to-bunch distances of 482 ns. Even substantially shorter time windows may be de®ned in the case of tight collimation in the incident beam, e.g. on low-emittance sources. The shutter system is based on a new chopper concept involving a rotating X-ray mirror which totally re¯ects the incident radiation onto the sample through a remote slit. Rather low rotational velocities are suf®cient to reach extremely short full open times. An additional shutter consisting of a slowly rotating disk prevents frame overlap and controls the repetition rate. A coincidence timing circuit checks the synchronization with the synchrotron bunch clock and provides trigger signals, e.g. for external excitation of a sample. The chopper system may be used, for example, in nanosecond time-resolved Laue diffraction experiments.

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