Design of Velocity Map Imaging Spectrometer Equipped with a Mass Gate Discriminating Particular Photofragments
Joint Authors
Prodhan, Md. Serajul I.
Mitsuke, Koichiro
Katayanagi, Hideki
Kafle, Bhim P.
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-06-26
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
A photoionization spectrometer for velocity map imaging has been developed for measuring the scattering distribution of fragment ions from polyatomic molecules.
The spectrometer contains a mass gate and an ion reflector which are able to discriminate ions with a particular mass-to-charge ratio m/z.
The basic functions and feasibility of these devices were tested experimentally and theoretically.
First, the photoions from Kr and C60 were extracted into a time-of-flight (TOF) mass spectrometer by a transient or continuous electrostatic field.
When the pulse application on the mass gate was tuned to the arrival timing of ions with a specific m/z, the peak of the selected ions alone was present on a TOF spectrum.
Second, compatibility between velocity map imaging and ion discrimination was investigated by the computer simulations of the ion trajectories of photofragments from C60.
A pulsed voltage was applied to the mass gate synchronously with the arrival timing of C58+ ions.
The initial three-dimensional velocity distribution of C58+ was projected onto the image plane with an energy resolution better than 10 meV.
The C58+ image was free from the contamination of other ions such as C60+ and C56+.
American Psychological Association (APA)
Mitsuke, Koichiro& Katayanagi, Hideki& Kafle, Bhim P.& Prodhan, Md. Serajul I.. 2012. Design of Velocity Map Imaging Spectrometer Equipped with a Mass Gate Discriminating Particular Photofragments. ISRN Physical Chemistry،Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-511489
Modern Language Association (MLA)
Mitsuke, Koichiro…[et al.]. Design of Velocity Map Imaging Spectrometer Equipped with a Mass Gate Discriminating Particular Photofragments. ISRN Physical Chemistry No. 2012 (2012), pp.1-9.
https://search.emarefa.net/detail/BIM-511489
American Medical Association (AMA)
Mitsuke, Koichiro& Katayanagi, Hideki& Kafle, Bhim P.& Prodhan, Md. Serajul I.. Design of Velocity Map Imaging Spectrometer Equipped with a Mass Gate Discriminating Particular Photofragments. ISRN Physical Chemistry. 2012. Vol. 2012, no. 2012, pp.1-9.
https://search.emarefa.net/detail/BIM-511489
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-511489