Coincidence experiments in desorption mass spectrometry

C. W. Diehnelt; R. D. English; M. J. Van Stipdonk; E. A. Schweikert

doi:10.1016/S0168-583X(02)00920-5

Coincidence experiments in desorption mass spectrometry

C. W. Diehnelt, R. D. English, M. J. Van Stipdonk, E. A. Schweikert

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The detection of coincidental signals can enhance the amount of information available in desorption time-of-flight mass spectrometry (TOF-MS) by identifying physical, chemical and/or spatial correlations between secondary ions. Detection of coincidental emissions requires that the target surface be bombarded with individual primary ions (keV or MeV), each resolved in time and space. This paper will discuss the application of coincidence counting to TOF-MS to: extract the secondary ion mass spectrum and secondary ion yields from an organic target produced by a single primary ion type when multiple primary ions simultaneously impact the sample; examine the metastable dissociation pathways and decay fractions of organic secondary ions using an ion-neutral correlation method; and study the chemical microhomogeneity (on the sub-μm scale) of a surface composed of two chemically distinct species.

Original language	English (US)
Pages (from-to)	883-890
Number of pages	8
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	193
Issue number	1-4
DOIs	https://doi.org/10.1016/S0168-583X(02)00920-5
State	Published - Jun 2002
Externally published	Yes

Keywords

Desorption
Metastability
Polyatomic primary ions
Secondary ion mass spectrometry

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/S0168-583X(02)00920-5

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title = "Coincidence experiments in desorption mass spectrometry",

abstract = "The detection of coincidental signals can enhance the amount of information available in desorption time-of-flight mass spectrometry (TOF-MS) by identifying physical, chemical and/or spatial correlations between secondary ions. Detection of coincidental emissions requires that the target surface be bombarded with individual primary ions (keV or MeV), each resolved in time and space. This paper will discuss the application of coincidence counting to TOF-MS to: extract the secondary ion mass spectrum and secondary ion yields from an organic target produced by a single primary ion type when multiple primary ions simultaneously impact the sample; examine the metastable dissociation pathways and decay fractions of organic secondary ions using an ion-neutral correlation method; and study the chemical microhomogeneity (on the sub-μm scale) of a surface composed of two chemically distinct species.",

keywords = "Desorption, Metastability, Polyatomic primary ions, Secondary ion mass spectrometry",

author = "Diehnelt, {C. W.} and English, {R. D.} and {Van Stipdonk}, {M. J.} and Schweikert, {E. A.}",

note = "Funding Information: C.W.D. thanks Hanbin Mao and Dr. Paul Cremer at Texas A&M University for the preparation of the phospholipid bilayers. E.A.S. acknowledges funding by the Robert A. Welch Foundation, Grant A-1482. ",

year = "2002",

month = jun,

doi = "10.1016/S0168-583X(02)00920-5",

language = "English (US)",

volume = "193",

pages = "883--890",

journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

issn = "0168-583X",

publisher = "Elsevier",

number = "1-4",

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TY - JOUR

T1 - Coincidence experiments in desorption mass spectrometry

AU - Diehnelt, C. W.

AU - English, R. D.

AU - Van Stipdonk, M. J.

AU - Schweikert, E. A.

N1 - Funding Information: C.W.D. thanks Hanbin Mao and Dr. Paul Cremer at Texas A&M University for the preparation of the phospholipid bilayers. E.A.S. acknowledges funding by the Robert A. Welch Foundation, Grant A-1482.

PY - 2002/6

Y1 - 2002/6

N2 - The detection of coincidental signals can enhance the amount of information available in desorption time-of-flight mass spectrometry (TOF-MS) by identifying physical, chemical and/or spatial correlations between secondary ions. Detection of coincidental emissions requires that the target surface be bombarded with individual primary ions (keV or MeV), each resolved in time and space. This paper will discuss the application of coincidence counting to TOF-MS to: extract the secondary ion mass spectrum and secondary ion yields from an organic target produced by a single primary ion type when multiple primary ions simultaneously impact the sample; examine the metastable dissociation pathways and decay fractions of organic secondary ions using an ion-neutral correlation method; and study the chemical microhomogeneity (on the sub-μm scale) of a surface composed of two chemically distinct species.

AB - The detection of coincidental signals can enhance the amount of information available in desorption time-of-flight mass spectrometry (TOF-MS) by identifying physical, chemical and/or spatial correlations between secondary ions. Detection of coincidental emissions requires that the target surface be bombarded with individual primary ions (keV or MeV), each resolved in time and space. This paper will discuss the application of coincidence counting to TOF-MS to: extract the secondary ion mass spectrum and secondary ion yields from an organic target produced by a single primary ion type when multiple primary ions simultaneously impact the sample; examine the metastable dissociation pathways and decay fractions of organic secondary ions using an ion-neutral correlation method; and study the chemical microhomogeneity (on the sub-μm scale) of a surface composed of two chemically distinct species.

KW - Desorption

KW - Metastability

KW - Polyatomic primary ions

KW - Secondary ion mass spectrometry

UR - http://www.scopus.com/inward/record.url?scp=0036609490&partnerID=8YFLogxK

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U2 - 10.1016/S0168-583X(02)00920-5

DO - 10.1016/S0168-583X(02)00920-5

M3 - Article

AN - SCOPUS:0036609490

SN - 0168-583X

VL - 193

SP - 883

EP - 890

JO - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

JF - Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms

IS - 1-4

ER -

Coincidence experiments in desorption mass spectrometry

Abstract

Keywords

ASJC Scopus subject areas

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