Charge Transfer Studies with a Time-of-flight Mass Spectrometer PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Charge Transfer Studies with a Time-of-flight Mass Spectrometer PDF full book. Access full book title Charge Transfer Studies with a Time-of-flight Mass Spectrometer by W. W. Hunt. Download full books in PDF and EPUB format.
Author: W. W. Hunt
Publisher:
ISBN:
Category : Ions
Languages : en
Pages : 16
Get Book Here
Book Description
The kinetics of charge transfer processes that occur in the drift tube of a time-of-flight mass spectrometer are analyzed, with due regard to attenuation of both ions and neutrals by scattering. The same equation that expresses the charge transfer cross section in terms of experimentally measurable quantities provides for independent determination, from the same experimental measurements, of the difference between the total scattering cross section for the neutrals and that for the ions involved in the charge transfer process being studied. A second, and much simpler, equation for the charge transfer cross section is used when the scattering cross sections for neutrals and ions are the same. Both equations allow for differences in detector response to neutrals compared with that to ions. (Author).
Author: W. W. Hunt
Publisher:
ISBN:
Category : Ions
Languages : en
Pages : 16
Get Book Here
Book Description
The kinetics of charge transfer processes that occur in the drift tube of a time-of-flight mass spectrometer are analyzed, with due regard to attenuation of both ions and neutrals by scattering. The same equation that expresses the charge transfer cross section in terms of experimentally measurable quantities provides for independent determination, from the same experimental measurements, of the difference between the total scattering cross section for the neutrals and that for the ions involved in the charge transfer process being studied. A second, and much simpler, equation for the charge transfer cross section is used when the scattering cross sections for neutrals and ions are the same. Both equations allow for differences in detector response to neutrals compared with that to ions. (Author).
Author: W. W Hunt (Jr)
Publisher:
ISBN:
Category :
Languages : en
Pages : 9
Get Book Here
Book Description
The kinetics of charge transfer processes that occur in the drift tube of a time-of-flight mass spectrometer are analyzed, with due regard to attenuation of both ions and neutrals by scattering. The same equation that expresses the charge transfer cross section in terms of experimentally measurable quantities provides for independent determination, from the same experimental measurements, of the difference between the total scattering cross section for the neutrals and that for the ions involved in the charge transfer process being studied. A second, and much simpler, equation for the charge transfer cross section is used when the scattering cross sections for neutrals and ions are the same. Both equations allow for differences in detector response to neutrals compared with that to ions. (Author).
Author: W. W. Hunt
Publisher:
ISBN:
Category : Ions
Languages : en
Pages : 0
Get Book Here
Book Description
The kinetics of charge transfer processes that occur in the drift tube of a time-of-flight mass spectrometer are analyzed, with due regard to attenuation of both ions and neutrals by scattering. The same equation that expresses the charge transfer cross section in terms of experimentally measurable quantities provides for independent determination, from the same experimental measurements, of the difference between the total scattering cross section for the neutrals and that for the ions involved in the charge transfer process being studied. A second, and much simpler, equation for the charge transfer cross section is used when the scattering cross sections for neutrals and ions are the same. Both equations allow for differences in detector response to neutrals compared with that to ions. (Author).
Author: W. W. Hunt
Publisher:
ISBN:
Category : Charge transfer
Languages : en
Pages : 20
Get Book Here
Book Description
The drift tube of a time-of-flight mass spectrometer has been adapted to serve as a reaction/collision chamber for studying ion dissociation reactions and charge-changing collisions. The methods for identifying the products of such processes depend on shifts in flight times produced by symmetric potential barriers, and are normally used in studying processes in which the mass-to-charge ratio (m/q) of the charged product particle is less than that of its parent. Processes in which the m/q of a charged product is greater than that of its parent represent an interesting special case, since the behavior of the product particle is quite different from that normally encountered. To illustrate this behavior, experimental observations of the 2, 1 charge transfer process N2(++) + N2O = N2(+) + N2O(+) at 6000 ev are presented. (Author).
Author: Y. Tanaka
Publisher:
ISBN:
Category : Absorption spectra
Languages : en
Pages : 20
Get Book Here
Book Description
Five systems of absorption bands of N2, were investigated in the 1070-1600-A region. A 2-m ad a 3-m vacuum spectrograph, both of normalincidence-type, were used in this work. A final designation of the upper electronic state must come from a rotational analysis, because the observed T00 of the state differed from that of the W state by approximately 40 cm( -1). The potential enejgy curves of the low-lying N2 states prepared by Mulliken are compared with those calculated by using the presently determined constants. (Author).
Author: Marvin L. White
Publisher:
ISBN:
Category : Magnetohydrodynamic instabilities
Languages : en
Pages : 22
Get Book Here
Book Description
Author: Carl T. Case
Publisher:
ISBN:
Category : Electromagnetic waves
Languages : en
Pages : 14
Get Book Here
Book Description
Author: Stanley K. Dickinson
Publisher:
ISBN:
Category : Crystal lattices
Languages : en
Pages : 46
Get Book Here
Book Description
Author: Eiji Fujimori
Publisher:
ISBN:
Category : Absorption spectra
Languages : en
Pages : 14
Get Book Here
Book Description
Phycoerythrin, pigment-protein complex in photosynthetic organisms, plays a role in photosynthesis in transferring an energy abosrbed by itself to chlorophyll. Previous studies in this laboratory showed that the longest absorption band at 565 millimicrons responsible for fluorescence originates from the interaction between the pigment and SH-group of the protein in phycoerythrin. During the course of investigation on the effect of SH-blocking agent on energy transfer, it was found that modified phycoerythrin is released from cells treated with PCMB. This modified phycoerythrin possesses a single absorption band at 545 millimicrons, while native phycoerythrin shows three absorption bands at 500, 545, and 565 millimicrons. In the glutathione-treated modified phycoerythrin, the highly fluorescent 565 millimicrons chromophore was partially regenerated. This investigation indicates that native phycoerythrin is composed of two units and that modified phycoerythrin is one of them separated from the other containing the 500 millimicrons chromophore only. (Author).
Author: J. L. Poirier
Publisher:
ISBN:
Category : Chickens
Languages : en
Pages : 20
Get Book Here
Book Description
