Alfred O. C. Nier | Academic Influence

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Alfred O. C. Nier

Physics

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Physics

Why Is Alfred O. C. Nier Influential?

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According to Wikipedia, Alfred Otto Carl Nier was an American physicist who pioneered the development of mass spectrometry. He was the first to use mass spectrometry to isolate uranium-235 which was used to demonstrate that 235U could undergo fission and developed the sector mass spectrometer configuration now known as Nier-Johnson geometry.

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Alfred O. C. Nier'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

A Redetermination of the Relative Abundances of the Isotopes of Carbon, Nitrogen, Oxygen, Argon, and Potassium (1950) (853)
The search for organic substances and inorganic volatile compounds in the surface of Mars (1977) (488)
Composition and structure of Mars' Upper atmosphere: Results from the neutral mass spectrometers on Viking 1 and 2 (1977) (454)
A Mass Spectrometer for Isotope and Gas Analysis (1947) (422)
A Mass Spectrometer for Routine Isotope Abundance Measurements (1940) (303)
Variations in the Relative Abundance of the Carbon Isotopes (1939) (288)
Search for Organic and Volatile Inorganic Compounds in Two Surface Samples from the Chryse Planitia Region of Mars (1976) (250)
A redetermination of the relative abundances of the isotopes of neon, krypton, rubidium, xenon and mercury (1950) (235)
The Isotopic Constitution of Strontium, Barium, Bismuth, Thallium and Mercury (1938) (199)
The open‐source neutral‐mass spectrometer on Atmosphere Explorer‐C, ‐D, and ‐E (1973) (185)
Isotopic Composition of Nitrogen: Implications for the Past History of Mars' Atmosphere (1976) (153)
The upper atmosphere of Venus during morning conditions (1980) (145)
The Isotopic Constitution of Osmium (1937) (143)
Preparation and measurement of isotopic tracers. (1946) (139)
The Isotopic Constitution of Lead and the Measurement of Geological Time. III (1941) (136)
ANGULAR ABERRATIONS IN SECTOR SHAPED ELECTROMAGNETIC LENSES FOR FOCUSING BEAMS OF CHARGED PARTICLES (1953) (131)
Composition and Structure of the Martian Atmosphere: Preliminary Results from Viking 1 (1976) (126)
The Isotopic Constitution of Radiogenic Leads and the Measurement of Geological Time. II (1939) (122)
Structure of the Neutral Upper Atmosphere of Mars: Results from Viking 1 and Viking 2 (1976) (112)
The Distribution of Cosmic-Ray-Produced Rare Gases in (1960) (111)
Variations in the Relative Abundances of the Isotopes of Common Lead from Various Sources (1938) (110)
Argon 40 in Potassium Minerals (1948) (109)
Extraction of helium from individual interplanetary dust particles by step-heating (1992) (99)
A mass spectrometer for isotope and gas analysis. (1985) (96)
The Occurrence of He 3 in Natural Sources of Helium (1948) (94)
Global Model of Longitude/UT Variations in Thermospheric Composition and Temperature Based on Mass Spectrometer Data (Paper 8A0781) (1979) (92)
The Isotopic Constitution of Uranium and the Half-Lives of the Uranium Isotopes. I (1939) (88)
Helium and neon isotopes in stratospheric particles (1990) (82)
Mass spectrometric studies of the composition of the lower thermosphere during summer 1967 (1968) (81)
Neutral composition of the atmosphere in the 100- to 200- kilometer range (1964) (79)
Measurements concerning the vapour-liquid equilibrum of solutions of He3 in He4 below 2.19°K (1949) (74)
The thermal history of interplanetary dust particles collected in the Earth's stratosphere (1993) (73)
A determination of the neutral composition, number density, and temperature of the upper atmosphere from 120 to 200 kilometers with rocket‐borne mass spectrometers (1966) (72)
A null method for the comparison of two ion currents in a mass spectrometer. (1947) (68)
The Determination of Atomic Mass Doublets by Means of a Mass Spectrometer (1951) (67)
Recombination of O2 + in the ionosphere (1976) (60)
A study of day-night variations in the neutral composition of the lower thermosphere. (1968) (58)
Venus Thermosphere: In situ Composition Measurements, the Temperature Profile, and the Homopause Altitude (1979) (58)
Composition and Structure of the Martian Upper Atmosphere: Analysis of Results from Viking (1976) (57)
An asteroidal breccia: The anatomy of a cluster IDP (1995) (57)
Atomic and molecular oxygen densities in the lower thermosphere (1976) (56)
HEAVY CARBON AS A TRACER IN HETEROTROPHIC CARBON DIOXIDE ASSIMILATION (1941) (54)
Recombination of NO+ in the ionosphere (1976) (54)
Evidence for the Existence of an Isotope of Potassium of Mass 40 (1935) (53)
Seasonal variation of neutral thermospheric constituents in the Northern Hemisphere (1976) (51)
HEAVY CARBON AS A TRACER IN BACTERIAL FIXATION OF CARBON DIOXIDE (1940) (50)
FIXATION OF CARBON DIOXIDE BY PIGEON LIVER IN THE DISSIMILATION OF PYRUVIC ACID (1942) (49)
An experimental and theoretical study of the mean diurnal variation of O+, NO+, O2 +, and N2 + ions in the mid-latitude F 1 layer of the ionosphere (1979) (48)
Nuclear Fission of Separated Uranium Isotopes (1940) (48)
Atomic nitrogen measurements in the upper atmosphere (1975) (46)
Bulletin No. 41. The Precambrian Geology and Geochronology of Minnesota (1961) (46)
Helium and neon isotopes in deep Pacific Ocean sediments (1990) (46)
THE POSITION OF CARBON DIOXIDE CARBON IN SUCCINIC ACID SYNTHESIZED BY HETEROTROPHIC BACTERIA (1941) (45)
Measurement of Metabolic Gas Exchange with a Recording Mass Spectrometer. (1952) (45)
A mass-spectrographic study of the isotopes of Argon, Potassium, Rubidium, Zinc and Cadmium (1936) (44)
MECHANISM OF FIXATION OF CARBON DIOXIDE IN THE KREBS CYCLE (1941) (42)
PRODUCTION OF HELIUM IN IRON METEORITES BY THE ACTION OF COSMIC RAYS (1958) (42)
The measurement of chemically reactive atmospheric constituents by mass spectrometers carried on high‐speed spacecraft (1974) (41)
The Isotopic Constitution of Calcium, Titanium, Sulphur and Argon (1938) (40)
Secondary Emission from Nichrome V, CuBe, and AgMg Alloy Targets Due to Positive Ion Bombardment (1954) (38)
Gas flow through the mass spectrometer viscous leak. (1950) (38)
Entry science experiments for Viking 1975. (1972) (36)
ATOMIC MASSES FROM TITANIUM THROUGH ZINC (1952) (35)
High‐performance double‐focusing mass spectrometer (1985) (35)
Doubly charged atomic oxygen ions in the thermosphere, 1. Photochemistry (1977) (34)
Empirical model of atomic nitrogen in the upper thermosphere (1977) (34)
Atomic Masses in the Region Xenon to Europium (1957) (34)
A miniature mattauch—herzog mass spectrometer for the investigation of planetary atmospheres (1971) (33)
Mass Spectrometer for Leak Detection (1947) (32)
A Mass-Spectrographic Study of the Isotopes of Hg, Xe, Kr, Be, I, As, and Cs (1937) (32)
Quenching of metastable ²D oxygen ions in the thermosphere by atomic oxygen (1977) (31)
The O + ( P ) Emission at 7320 in Twilight (1978) (31)
A Mass-Spectrographic Analysis of the Ions Produced in HCl Under Electron Impact (1936) (31)
Atomic Masses in the Heavy Mass Region (1960) (30)
CHAPTER XII – ASSIMILATION OF CARBON DIOXIDE BY HETEROTROPHIC BACTERIA (1942) (29)
Some reminiscences of mass spectrometry and the Manhattan Project (1989) (29)
RELATIVE ISOTOPIC ABUNDANCES OF THE ELEMENTS (1950) (28)
A New Method of Separation of the IsotopesHe3andHe4 (1947) (28)
He3Separation by a Heat Flux in Liquid Helium II (1948) (27)
Determination of the N2 recombination rate coefficient in the ionosphere (1977) (27)
Loss of atomic oxygen in mass spectrometer ion sources. (1973) (27)
The Abundance of He 3 in Atmospheric and Well Helium (1946) (26)
The characteristics of an open source mass spectrometer under conditions simulating upper atmosphere flight (1974) (25)
Identification of cometary and asteroidal particles in stratospheric IDP collections (1993) (25)
Investigations in A40/K40 dating (1957) (25)
The Concentration of Carbon 13 by Thermal Diffusion (1940) (25)
The cosmogenic He3 and He4 distribution in the meteorite Carbo (1959) (25)
A40/K40 age of gneiss from McMurdo Sound, Antarctica (1958) (25)
Measurement of the neutral composition of the lower thermosphere above Fort Churchill by rocket‐borne mass spectrometer (1972) (25)
Determination of Isotopic Masses and Abundances by Mass Spectrometry. (1955) (23)
Neutral constituents of the upper atmosphere: The minor peaks observed in a mass spectrometer (1964) (22)
Small General Purpose Double Focusing Mass Spectrometer (1960) (22)
ATOMIC MASSES IN THE REGION FROM IRON TO ZINC (1956) (22)
The Thermal Diffusion Constant of Helium and the Separation ofHe3by Thermal Diffusion (1947) (21)
Measurements Concerning the Vapor-Liquid Equilibrium of Solutions of He3 in He4 below 2.19K (1949) (21)
ATOMIC MASSES IN THE INTERMEDIATE REGION (1954) (21)
Further Experiments on Fission of Separated Uranium Isotopes (1940) (20)
Thermal and wind-induced variations in thermospheric molecular oxygen as measured on AE-D (1979) (20)
Atomic Masses of the Stable Isotopes, 10<=A<=30 (1956) (19)
The Coefficient of Thermal Diffusion of Methane (1939) (19)
The development of a high resolution mass spectrometer: A reminiscence (1991) (19)
Recording Mass Spectrometer for Process Analysis (1948) (19)
Diffusive separation in the upper atmosphere (1965) (18)
Charge exchange of metastable ²D oxygen ions with molecular oxygen: A new source of thermospheric O2 + ions (1979) (18)
The Production of Intense Ion Beams in a Mass Spectrometer (1948) (18)
atmospheric helium isotopic ratio (1993) (17)
Some reflections on the early days of mass spectrometry at the university of minnesota (1990) (17)
The metabolism of glycine. 1. Studies with the stable isotope of carbon. (1943) (17)
A simplified emission regulator for mass-spectrometer ion sources. (1949) (17)
Some Reminiscences of Isotopes, Geochronology, and Mass Spectrometry (1981) (17)
THE FORMATION OF ACETONE BODIES FROM ACETIC ACID (1942) (16)
ATOMIC MASSES IN THE REGION ABOUT MASS 40 (1951) (15)
The Mass Spectrometer (1953) (15)
Mass spectrometry in planetary research (1985) (15)
The Half-Life of Carbon Fourteen and a Comparison of Gas Phase Counter Methods (1950) (15)
The Relative Abundances of the Zinc and Cadmium Isotopes (1948) (14)
Reliability of Reactions Used to Locate Assimilated Carbon in Propionic Acid1 (1941) (14)
Mass spectrometry in the exploration of Mars (2003) (13)
Cosmic‐ray‐produced helium in the Keen Mountain and Casas Grandes meteorites (1960) (13)
The Production of Concentrated Carbon (13) by Thermal Diffusion (1941) (13)
The Isotopic Constitution of Rubidium, Zinc and Argon (1936) (12)
The Coefficient of Thermal Diffusion of Neon and Its Variation with Temperature (1940) (12)
Mass spectrometric study of the mercury isotopes in the Allende meteorite (1986) (12)
Alveolar Ventilation Studies Using Mass Spectrometer.∗ (1950) (12)
Intercomparison of neutral composition measurements from the satellites Esro 4, Aeros A, Aeros B, and Atmosphere Explorer C (1977) (12)
Identification and Analysis of Cometary IDPs (1994) (11)
Concentration of He$sup 3$ by Thermal Diffusion (1948) (11)
Adjustable Gas Leak (1947) (11)
Device for Remote Opening of a Vacuum System (1962) (11)
Molecular beam facility for studying mass spectrometer performance (1981) (11)
The Atomic Masses of H 1 , C 12 , and S 32 (1951) (10)
The reproducibility of A40/K40 age determinations (1957) (10)
Position of the Carbon Dioxide-Carbon in Propionic Acid Synthesized by Propionibacterium. ∗ (1941) (10)
The Concentration ofHe3in the Liquid and Vapor Phases ofHe4 (1947) (9)
Measurement of thermospheric composition (1971) (9)
Rarefied gas dynamic effects on mass spectrometric studies of upper planetary atmospheres (1975) (9)
Determination of exospheric neutral gas temperatures (1976) (9)
"Heat flush" method of He$sup 3$ separation (1949) (9)
Helium and neon in lunar ilmenites of different antiquities (1994) (9)
Double-focusing mass spectrometer (1976) (8)
The development of, and certain clinical applications for, a portable mass spectrometer. (1950) (8)
Fundamentals of Physics. By Henry Semat. (1947) (8)
Direct in situ measurements of thermospheric temperature (1979) (8)
On the determination of thermospheric atomic‐oxygen densities with rocket‐borne mass spectrometers (1972) (8)
Distribution of He 3 between Liquid and Vapor He 4 (1948) (8)
Device to Compensate for Magnetic Field Fluctuations in a Mass Spectrograph (1935) (7)
Age of Uraninite from a Pegmatite Near Singar, Gaya District, India--With an Isotopic Analysis of Lead (1950) (7)
Evolution of the unified scale of atomic mass, 12C = 12u (1988) (7)
Thermospheric variations as an indicator of magnetic storm heating and circulation (1978) (7)
All‐Metal Valve for Ultra‐High Vacuum Use (1961) (6)
Increase in Vapor Pressure of Liquid Helium Due to He$sup 3$ in Solution (1948) (6)
A Mass Spectrometer for Isotope Ratio Analyses. (1962) (5)
ASSIMILATION OF CARBON DIOXIDE BY THE ISOLATED MAMMALIAN HEART (1943) (4)
Evaluation of carbon dioxide accumulation in anesthetized patients utilizing a portable mass spectrometer to analyze exhaled gaseous concentrations. (1950) (4)
Neutron Capture by Uranium (238) (1940) (4)
Preparation and measurement of isotopic tracers : a symposium prepared for The Isotope Research Group (1948) (4)
Proceedings of the International Symposium on Isotope Separation, held in Amsterdam, April 23-27, 1957 (1958) (3)
Helium in interplanetary dust particles (1993) (3)
Mass and Relative Abundance of Isotopes (1952) (3)
Study of neutral composition of lower thermosphere at Fort Churchill. (1973) (3)
Theory of the fly-through mode for neutral mass spectrometers. [on Explorer satellites] (1979) (3)
Atomic nitrogen measurements in the upper thermosphere (1977) (3)
Planetary atmospheres with mass spectrometers carried on high-speed probes or satellites (1977) (3)
Mass Spectrometry of the Neutral Constituents of the Upper Atmosphere (1967) (3)
The neutral composition of the thermosphere (1965) (3)
The evaluation of carbon dioxide toxicity in man and experimental animals. (1951) (3)
Helium Isotopic Ratios in Native and Processed Metals (1988) (2)
Nier receives 1992 Bowie medal (1992) (2)
Extraction of Helium from Individual IDPs and Lunar Grains by Pulse Heating (1992) (2)
Proceedings of the International Symposium on Isotope Separation (M. Pahl) (1959) (2)
Use of Ice and Water as a Filler While Bending and Flattening Metal Tubing (1962) (2)
Helium and Neon Isotopes in Extraterrestrial Particles (1987) (2)
Helium and Neon in Individual Extraterrestrial Particles (1988) (2)
An upper limit for radiogenic A38 in potassium minerals (1959) (2)
Mass spectroscopic study of the neutral composition of the atmosphere in the 100-200 km range (1965) (1)
J. William Buchta (1966) (1)
New Unified Scale for Atomic Masses and Weights (1963) (1)
An Automatic Chart Plotter for Lecture Room Demonstrations (1951) (1)
Acceptance speech for the V. M. Goldschmidt Award (1985) (1)
Advance in Mass Spectrometry. Proceedings of a conference held at Oxford in September 1961. R. M. Elliott, Ed. Pergamon, London; Macmillan, New York, 1963. xviii + 628 pp. Illus. $20 (1964) (1)
ISOTOPIC ANALYSIS OF TRACE QUANTITIES OF RARE GASES (1959) (1)
MASS SPECTROSCOPY: AN OLD FIELD IN A NEW WORLD. (1966) (1)
A study of the feasibility of employing a magnetic mass spectrometer for the analysis of the Martian atmosphere (1962) (0)
Upper Atmosphere Investigations by Rocket and Satellite-Borne Mass Spectrometers (1970) (0)
Conference Report. (Book Reviews: Advance in Mass Spectrometry. Proceedings of a conference held at Oxford in September 1961) (1964) (0)
Mass spectrometric measurements in the lower thermosphere (1978) (0)
Comments and Summary (1969) (0)
The Determination of Isotopic Masses and Abundances by Mass Spectrometry (1954) (0)
SUMMARY OF DISCUSSION OF PRE‐CAMBRIAN GEOCHRO‐NOLOGY OF MINNESOTA AND ADJACENT AREAS (1961) (0)
Anatomy of a cluster IDP. Part 2: Noble gas abundances, trace element geochemistry, isotopic abundances, and trace organic chemistry of several fragments from L2008#5 (1994) (0)
Helium Release from Interplanetary Dust Particles in Laboratory Studies Simulating the Heat Pulse Experienced by Particles During Atmospheric Entry (1992) (0)
Determination of the composition of rarefied neutral atmospheres by mass spectrometers carried on high-speed spacecraft (1974) (0)
Solar system exposure histories of interplanetary dust particles (1994) (0)
Comments on Paper by A. Giraud, G. Scialom, and A. A. Pokhunkov, ‘Thermospheric structure: Correlation of mass spectrometry and incoherent scatter sounding’ (1973) (0)
901—1994 a Biographical Memoir By (0)
3He/4He Ratios in Interplanetary Dust Particles (1994) (0)
Internationale Tabelle der stabilen Isotopen 1938 Atom-Kornmission der Internationalen Union für Chemie (1938) (0)
NUCLEAR PHYSICS: PARTICLE INTERACTIONS AT ENERGIES UP TO 4 MEV USING THE MINNESOTA VAN DE GRAAFF GENERATOR: AND MASS SPECTROMETRY, (1965) (0)
Conference Report: Advance in Mass Spectrometry . Proceedings of a conference held at Oxford in September 1961. R. M. Elliott, Ed. Pergamon, London; Macmillan, New York, 1963. xviii + 628 pp. Illus. $20. (1964) (0)
A Search for Solar Energetic Particle Helium in Interplanetary Dust Particles (1994) (0)
The composition of the upper atmosphere (1972) (0)
The Half-Life of Carbon 14 and a Comparison of Gas Phase Counter Methods (1950) (0)
A Mass Spectrometer for Routine Hydrogen Isotope Analyses, Supplement No. 1 (1943) (0)
Proposed revision to the US standard atmosphere 86 to 200 km (1973) (0)
Application of mass spectroscopy to upper atmosphere and space research (1970) (0)

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What Schools Are Affiliated With Alfred O. C. Nier?

Alfred O. C. Nier is affiliated with the following schools:

University of Minnesota

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