William A. Chupka

Q: What Schools Are Affiliated With William A. Chupka

William A. Chupka is affiliated with the following schools: Yale University, University of Chicago

William A. Chupka's AcademicInfluence.com Rankings

William A. Chupka

Physics

#4227

World Rank

#5844

Historical Rank

physics Degrees

Download Badge

Physics

William A. Chupka's Degrees

PhD Physics University of Maryland, College Park

Why Is William A. Chupka Influential?

(Suggest an Edit or Addition)

(See a Problem?)

William A. Chupka's Published Works

Number of citations in a given year to any of this author's works

Total number of citations to an author for the works they published in a given year. This highlights publication of the most important work(s) by the author

Published Works

Factors affecting lifetimes and resolution of Rydberg states observed in zero-electron-kinetic-energy spectroscopy (1993) (382)
Effect of Unimolecular Decay Kinetics on the Interpretation of Appearance Potentials (1959) (286)
Photoionization Study of Ion–Molecule Reactions in Mixtures of Hydrogen and Rare Gases (1968) (264)
Very high resolution study of photoabsoprtion, photoionization, and predissociation in H2 (1976) (227)
Direct Determination of the Heat of Sublimation of Carbon with the Mass Spectrometer (1955) (179)
High resolution study of photoionization processes in O2 (1975) (155)
Photoionization of HCN: The Electron Affinity and Heat of Formation of CN (1969) (154)
Ion‐Molecule and Chemi‐ionization Reactions in H2 by Photoionization (1968) (153)
Photoionization of Ethane, Propane, and n‐Butane with Mass Analysis (1967) (150)
Electron Affinities of Halogen Diatomic Molecules as Determined by Endoergic Charge Transfer (1971) (140)
Mass Spectrometric Study of Vapor Ejected from Graphite and Other Solids by Focused Laser Beams (1964) (139)
High‐Resolution Photoionization Study of the H2 Molecule near Threshold (1969) (129)
THERMODYNAMIC STUDIES OF SOME GASEOUS METALLIC CARBIDES (1958) (123)
Photoionization of the Lower Aliphatic Alcohols with Mass Analysis (1968) (117)
Mass‐Spectrometric Study of the Photoionization of Methane (1968) (116)
POLYMERIC GASEOUS SPECIES IN THE SUBLIMATION OF MOLYBDENUM TRIOXIDE. Period covered: To June 30, 1956. Technical Report No. 2 on THERMODYNAMICS OF REFRACTORY MATERIALS AS DETERMINED WITH A MASS SPECTROMETER (1956) (115)
Electronically Excited States of Ethylene (1992) (113)
Polymeric Gaseous Molecules in the Vaporization of Alkali Halides (1958) (104)
Photoionization mass spectrometric study of formaldehyde H2CO, HDCO and D2CO (1976) (103)
Ion-Molecule Reactions of NH3+ by Photoionization (1968) (102)
Equilibrium Composition of Selenium Vapor; the Thermodynamics of the Vaporization of HgSe, CdSe, and SrSe (1966) (97)
Surface Ionization Source Using Multiple Filaments (1953) (93)
Photoelectron Spectroscopy of Autoionization Peaks (1969) (93)
Threshold Photoelectron Detector for Use in the Vacuum Ultraviolet (1971) (92)
Photoionization of High‐Temperature Vapors. I. The Iodides of Sodium, Magnesium, and Thallium (1966) (91)
Lifetimes of very high Rydberg states of aromatic molecules (1993) (90)
Double‐Oven Experiments with Lithium Halide Vapors (1962) (90)
Photoionization of molecular Rydberg states: H2, C 1Πu and its doubly excited states (1987) (87)
Effect of Thermal Energy on Ionization Efficiency Curves of Fragment Ions (1971) (85)
On the Dissociation Energies of SrO and MgO Molecules (1955) (85)
Flash pyrolytic production of rotationally cold free radicals in a supersonic jet. Resonant multiphoton spectrum of the 3p2A2" .rarw. X2A2" origin band of methyl (1986) (84)
Electron Affinities of O2, O3, NO, NO2, NO3 by Endothermic Charge Transfer (1971) (83)
Vaporization of Beryllium Oxide and Its Reaction with Tungsten (1959) (81)
High resolution photoionization study of ion‐pair formation in H2, HD, and D2 (1975) (80)
Photoionization Mass Spectrometric Study of F2, HF, and DF (1971) (80)
Photoionization of Methane: Ionization Potential and Proton Affinity of CH4 (1971) (78)
Rydberg–valence interactions in the Πg states of O2 (1986) (77)
Mass‐Spectrometric Study of the Photoionization of C2F4 and CF4 (1969) (77)
Photoionization of CH3; Heat of Formation of CH2 (1968) (70)
Photoionization of N2 X 1Σ+g, v″=0 and 1 near threshold. Preionization of the Worley–Jenkins Rydberg series (1984) (69)
Photoionization of Ethylene with Mass Analysis (1969) (69)
Polymeric Gaseous Species in the Sublimation of Tungsten Trioxide (1957) (67)
Effects of vibronic interaction and autoionization on the photoelectron spectrum of N2O (1979) (67)
Mass Spectrometric Study of Barium Oxide Vapor (1955) (65)
Energy Distribution and Fragmentation Processes Resulting from Electron Impact on Propane and n‐Butane (1961) (63)
Investigation of the Heat of Vaporization of Carbon (1953) (63)
Heterogeneous Reactions Studied by Mass Spectrometry. II. Reaction of Li2O(s) with H2O(g) (1960) (62)
Mass Spectrometric Study of the Sublimation of Lithium Oxid (1959) (61)
Wavelength dependence of the photoelectron angular distributions of the rare gases (1975) (60)
On the mechanism for vibrational autoionization in H2 (1977) (57)
Photoionization of the CF3 Free Radical (1967) (56)
Dissociation Energies of Some Gaseous Alkali Halide Complex Ions and the Hydrated Ion K(H2O) (1959) (55)
Observation of Rydberg(C/sup 2/Pi)-valence(B/sup 2/Pi) interactions in NO by multiphoton photoelectron spectroscopy (1982) (54)
Threshold photoelectron spectra of HF, DF, and F2 (1976) (52)
Photoionization of atomic oxygen from 920 to 650 Å (1973) (49)
Comment on the Composition of Selenium Vapor (1968) (49)
Photoionization of High‐Temperature Vapors. VI. S2, Se2, and Te2 (1969) (49)
COMPOSITION OF VAPORS IN EQUILIBRIUM WITH SALTS AT HIGH TEMPERATURES (1960) (48)
Vaporization Processes Involving Sulfur (1964) (47)
Resonant multiphoton ionization of NO via the A 2Σ+ state: Photoelectron spectra and angular distributions (1984) (47)
Electron Multipliers in Mass Spectrometry; Effect of Molecular Structure (1956) (46)
Rydberg–Rydberg transitions of NO using an optical–optical double resonance multiphoton ionization technique (1983) (46)
Thermodynamics of the Ta–O System : The Dissociation Energies of TaO and TaO2 (1957) (45)
Resonant multiphoton ionization spectrum and electronic structure of CH radical. New states and assignments above 50 000 cm−1 (1987) (45)
Photoionization mass spectrometric study of xenon difluoride, xenon tetrafluoride, and xenon hexafluoride (1971) (44)
Double resonance multiphoton ionization studies of high Rydberg states in nitric oxide (NO) (1983) (42)
Thermodynamics of the Zr-ZrO2 System: The Dissociations Energies of ZrO and ZrO2 (1957) (42)
Molecular Species Evaporating from a Carbon Surface (1953) (41)
Kinetics of Unimolecular Decomposition of Excited Alkylamine Ions (1960) (39)
Thermodynamics of the V–O System : Dissociation Energies of VO and VO2 (1957) (38)
Vibrational analysis of the ~A-~X photodissociation spectrum of methyl iodide (1986) (38)
(2+1) resonance‐enhanced multiphoton ionization–photoelectron spectroscopy of the OH radical (1991) (37)
Vibrations and Thermodynamic Properties of Hexasulfur (1967) (37)
Dissociation Energy of Gaseous LaO (1956) (34)
Thermodynamics of the Ti–Ti2O3 System and the Dissociation Energy of TiO and TiO2 (1957) (34)
Photodissociation spectrum of CH3I+ prepared by multiphoton ionization (1983) (33)
Photoionization of the H2 Molecule near Threshold (1968) (32)
Diatomic ions of noble gas fluorides (1970) (31)
Spin–orbit and electronic autoionization in HCl (1988) (31)
Shape resonance and non‐Franck–Condon behavior in the photoelectron spectra of O2 produced by (2+1) multiphoton ionization via 3sσ Rydberg states (1988) (31)
Competition between autoionization and radiative emission in the decay of excited states of the oxygen atom (1977) (30)
Photoionization mass spectrometric study of NO. A closer look at the threshold region (1973) (29)
Observation of the ν1+nν2 combination band in the C̃′ 1A1′ Rydberg state of NH3 (1988) (29)
Shape resonance influence on the photoelectron angular distributions from O2 C 3Πg, v=0–3 (1988) (28)
Identification of the nsσ and ndλ Rydberg states of O2 for n=3–5 (1992) (28)
Reactions of Rydberg states of molecular hydrogen (1994) (27)
Electron photodetachment from transient negative ions in the multiphoton ionization of CH3I (1985) (27)
s and d Rydberg complexes of NO probed by double-resonance multiphoton ionisation in the region n* = 5 to n* = 25; multichannel quantum defect analysis. Part II (1990) (27)
Direct Determination of the Heat of Sublimation of Carbon (1954) (27)
Multiphoton optical and photoelectron spectroscopy of 4s–3d and 5s–4d Rydberg complexes of O2 (1988) (25)
Probing excited states of nitric oxide involved in multistate interactions using the optical-optical double resonance-multiphoton ionization technique (1986) (25)
Photoionization study of the kinetics of unimolecular decomposition of halobenzene ions (1981) (25)
Experimental Search for Stable, Fractionally Charged Particles (1966) (24)
New reaction of saturated fluorocarbons: partial reduction by ammonia with mercury photosensitization. (1995) (23)
Vibrational effects in the spin-orbit autoionization of HBr (1986) (23)
Photoelectron spectroscopy of the excited states of the CH radical (1986) (23)
Adiabatic dissociation of photoexcited chlorine molecules (1988) (23)
Kinetic Energy of Ions Produced by Photoionization of HF and F2 (1971) (22)
Photoionization study of NO2. I. The ionization potential (1973) (21)
Photoionization of HOF with mass analysis (1973) (21)
Photoionization of atomic nitrogen (1974) (21)
Photoabsorption and photoionization of HD (1983) (21)
Predissociation‐induced rovibrational autoionization and zero‐energy photoelectrons (1988) (21)
Photoionization mass spectrometry of F2O (1973) (20)
Rotational effect in the ionization of a highly excited atom by collision with a polar molecule (1977) (20)
Two-color laser studies of the multiphoton ionization and dissociation of trans-1,3-butadiene (1984) (20)
Multiphoton spectroscopy and analysis of the E2? ? X2?, band of CH (1985) (20)
Search for long-lived doubly charged atomic negative ions (1982) (20)
Autoionization dynamics in the valence-shell photoionization spectrum of CO (1988) (19)
Observation and analysis of the 3dπ1Σg+ rydberg state of O2 by (2+1) multiphoton ionization (1989) (19)
Spectroscopy and photophysics of 1Πg and 3Πg Rydberg, ion‐pair states of Cl2, revealed by multiphoton ionization (1988) (19)
High power laser photochemistry. Production of neutral atomic and small molecular fragments by UV multiphoton dissociation (1986) (19)
Two‐photon spectroscopy of the 3d Rydberg states of O2: 1Φg and 3Φg states (1990) (18)
Rydberg State Reactions of Atomic and Molecular Hydrogen (1995) (17)
Photoionization study of the reaction O+2 (a4Πu) with O2† (1975) (17)
Identification of the 3dπ 1Δg and 3Δ2g Rydberg state of O2 by multiphoton ionization and polarization studies (1990) (17)
Nonstatistical emission from metastable autoionizing states of Oi (1975) (15)
Identification of the nd Δ and Σ states and the 1,3Φ←←X 3Σ−g transition of O2 by resonant multiphoton ionization (1992) (15)
Measurement of resonances in atomic oxygen by electron transmission spectroscopy (1974) (15)
ANOMALOUS INTENSITIES IN ZERO-KINETIC-ENERGY SPECTRA (1999) (15)
Production of vibrationally state‐selected O+2 via newly discovered 4s–3d and 5s–4d Rydberg states of O2 (1988) (15)
Energy Dependence of Cross Sections for Collision‐Induced Dissociation and Endothermic Ion—Molecule Reactions (1965) (14)
Observation of strong Rydberg–valence mixing in the E 3Σ−u state of O2 by 3+1 MPI photoelectron spectroscopy (1988) (14)
Ion-Molecule Reactions by Photoionization Techniques (1972) (13)
Mass spectrometric observation of the stable negative molecular ions HI− and H2I− (1982) (13)
Vibrationally autoionizing rydberg states of NH3 (1988) (12)
Multiphoton ionization studies of NO: Spontaneous decay channels in the (4pπ)K 2Π(v=2) Rydberg state (1989) (11)
Predissociation of the 3pπ D 1Πu+ state in H2, HD, and D2 (1979) (11)
Autoionization of the 4f Rydberg state of the NO molecule (1985) (10)
Electron transfer in high n Rydberg states (1995) (9)
Rydberg photochemistry of methyl radicals (1988) (9)
MASS SPECTROMETRIC STUDIES OF HIGH TEMPERATURE SYSTEMS (1963) (9)
Isotopic fractionation in low temperature ion–molecule exchange reactions: Enrichment of 22Ne in Ne+n clusters formed by association in an ionized free jet (1990) (9)
Search for fractionally charged particles in lunar soil. [Upper limit, concentration, cosmic ray flux] (1976) (8)
Radiative energy loss from hot C60 molecules (1997) (8)
Rotationally resolved photofragmentation spectroscopy of CH+ formed by resonance-enhanced multiphoton ionization (1991) (7)
Evidence for a deep Cooper minimum in the 3s-np channel of ND4 (1996) (6)
Vibronic absorption spectra of the biphenyl and biphenyl‐d10 cations in solid argon (1982) (6)
Ion-molecule reactions in ethanol by photoionization (1971) (6)
(2 + 1) resonance-enhanced multiphoton ionization studies of the CH D 2Π (ν=2) state (1992) (5)
Photoionization and Fragmentation of Polyatomic Molecules (1974) (5)
Dynamics and spectroscopic manifestations of two-photon bound-bound absorption through a repulsive intermediate state (1987) (5)
Vibrational effects in coulomb-explosion experiments (1980) (5)
Anomalous line shapes in delayed optical–optical double resonance studies of N2 (1989) (3)
HETEROGENEOUS REACTIONS STUDIED BY MASS SPECTROMETRY. I. REACTION OF B$sub 2$O$sub 3$(S) WITH H$sub 2$O(g) (1960) (3)
High-resolution one-photon ionization spectrum of no using third-harmonic generation (1985) (3)
Prescription for preparation of molecular ions in selected rotational states (1992) (3)
Water Dimer and Its Relation to Mass Spectrometric Measurement of C3+ in Carbon Vapor (1955) (3)
Ionic state preparation of O+2 via the 3dδ 1,3Φg Rydberg states of O2 (1993) (2)
New Reaction of Saturated Fluorocarbons: Partial Reduction by NH3 with Hg Photosensitization. (1996) (1)
Differential Decay of States Excited in Zero-Kinetic-Energy Spectroscopy (1999) (1)
Effects of internal energy on ion-molecule reactions (1974) (1)
Optical-Optical Double Resonance Multiphoton Ionization Spectroscopy of NO. (1982) (1)
Shape resonance influence on the photoelectron angular distributions from O/sub 2/ C /sup 3/Pi/sub g/, v = 0--3 (1988) (0)
HIGH RESOLUTION ONE-PHOTON IONIZATION CROSS SECTION OF NO USING THIRD-HARMONIC GENERATION (1985) (0)
Identification of the nd A and l : states and the 1 , 3 < 1 l _-X 3 l : g transition of O 2 by resonant multiphoton ionization (2017) (0)
Photoionization of CO (1978) (0)
Search for stable, fractionally charged particles /quarks/ in lunar material (1971) (0)
Oxygen and Other Atmospheric Gases (1989) (0)
PREPARATION AND PHOTODISSOCIATION OF $CH_{3}I^{+}$ BY MULTIPHOTON PROCESSES (1983) (0)
Mass spectrometric observation of the stable negative molecular ions HI/sup -/ and H/sub 2/I/sup -/ (1982) (0)
Predissociation of the 3pπ D ¹Πu⁺ state in H₂, HD, and D₂ (1979) (0)
Resonances in the total cross section for scattering of electrons by atomic oxygen (1973) (0)
Photoionization of molecular Rydberg states: H/sub 2/, C /sup 1/Pi/sub u/ and its doubly excited states (1987) (0)
Photoelectron Spectroscopy of the Excited States of the CH Radical. (1986) (0)
Photoionization study of the reaction O$sub 2$$sup +$ (a$sup 4$PI/sub u/) with O$sub 2$ (1975) (0)
RESONANCE ENHANCED MULTIPHOTON IONIZATION OF FREE RADICALS IN A SUPERSONIC EXPANSION. NEW BANDS AND ROTATIONAL ANALYSIS FOR CH AND $CH_{2}$ (1985) (0)
MEASUREMENT OF AUTOIONIZATION RATES IN THE NON-PENETRATING 4F STATE OF NO (1985) (0)
Photoionization of the hydrogen halides-Rydberg series converging to the A²Σ⁺ state of the HX⁺ ion (X=Cl, Br, I) (1978) (0)
Laser Spectroscopy of Excited States in Atmospheric Molecules (1989) (0)
Dissociation Energies from Thermodynamic Equilibria Studied with a Mass Spectromoeter. (1957) (0)
MULTIPLE FILAMENT SURFACE IONIZATION SOURCE (1952) (0)
PHOTOIONIZATION OF $CH_{3}NO_{2}$, $C_{2}H_{3}ONO_{2}$, AND $C_{2}H_{5}NO_{2}$, ELECTRON AFFINITIES OF $NO_{2}$ AND $NO_{3}$, AND THE HEAT OF FORMATION OF $NO_{2}$ (1971) (0)
Time-resolved studies of molecular atomization by UV-multiphoton laser photolysis (1985) (0)
TWO LASER FRAGMENTATION STUDY OF BUTADIENE (1983) (0)
OPTICAL DOUBLE RESONANCE MULTIPHOTON IONISATION SPECTROSCOPY OF NO (1981) (0)
Photoionization of Xe, HI, and CH₃I-analogies between atomic and molecular Rydberg states (1978) (0)
IONIZATION AND DISSOCIATION OF POLY-ATOMIC MOLECULES (1964) (0)
Radiological and Environmental Research Division annual report, October 1979-September 1980: fundamental molecular physics and chemistry (1981) (0)
PROBING EXCITED STATES OF NO INVOLVED IN MULTISTATE INTERACTIONS USING THE OODR-MPI TECHNIQUE (1985) (0)
Photoionization of H₂O at high resolution (1978) (0)
The production and decay of excited states of molecules and ions by photon impact: the formaldehyde molecule (1973) (0)
THE $4f-\Lambda^{2}\Sigma^{+}$ (1,1) BAND OF NO USING OPTICAL-OPTICAL DOUBLE RESONANCE MULTIPHOTON IONIZATION TECHNIQUE (1982) (0)
A Study of Some Reactions of H 2 + in Selected Vibrational States (1969) (0)
VIBRONIC ABSORPTION SPECTRA OF THE BIPHENYL AND BIPHENYL-D10 CATIONS IN SOLID ARGON (1982) (0)

This paper list is powered by the following services:

What Schools Are Affiliated With William A. Chupka?

William A. Chupka is affiliated with the following schools: