Charge transfer of hydrogen atoms in N2 and in caesium vapour

Cross sections for electron capture by H and D in caesium vapour and for electron loss by H in N2 have been measured in the energy range 0.1-5 keV. Ions produced by either of these reactions were measured in identical geometric arrangements by means of two Faraday cups with different angular acceptances. The authors found that projectiles are scattered to larger angles in the electron-loss reaction than in the electron-capture reaction. The present results for the capture cross section sigma 0- are in good agreement with recent measurements and with a calculation by Olson (1981).

[1]  J. W. Stearns,et al.  D- PRODUCTION BY CHARGE TRANSFER OF 0.3-10 keV D+, D0, AND D- IN CESIUM, RUBIDIUM, AND SODIUM VAPOR TARGETS , 1980 .

[2]  F. Meyer.  Single electron capture and loss by H+, H0 and H- in Cs vapour in the energy range 0.1-2.0 keV , 1980 .

[3]  T. Nagata.  Charge Changing Collisions of Atomic Beams in Alkali-Metal Vapors. IV. Total Cross Sections for Single-Electron Capture by H^+ Ion and H(1s) Atom , 1980 .

[4]  R. Olson.  Cross sections for production of H− in H0+Cs collisions , 1980 .

[5]  F. W. Baity,et al.  Low energy H atom analyzer using a cesium heat pipe , 1980 .

[6]  C. F. Barnett,et al.  Absolute measurement of low‐energy H0 fluxes by a secondary emission detector , 1979 .

[7]  H. Tawara,et al.  Cross sections for charge transfer of hydrogen beams in gases and vapors in the energy range 10 eV-10 keV , 1978 .

[8]  W. J. Stevens,et al.  Negative ion formation by charge exchange between hydrogen and cesium , 1978 .

[9]  B. V. Zyl,et al.  H + N/sub 2/ and H + O/sub 2/ collisions: Experimental charge-production cross sections and differential scattering calculations , 1978 .

[10]  R. Janev,et al.  Ion-ion recombination and ion-pair formation processes in alkali-hydrogen diatomic systems , 1978 .

[11]  Noda Nobuaki.  Electron Stripping of He and H in Helium, Hydrogen and Nitrogen Gases from 0.2 keV to 5.0 keV , 1976 .

[12]  C. F. Barnett,et al.  Differential scattering and total cross sections of hydrogen and deuterium atoms in nitrogen , 1976 .

[13]  C. F. Barnett,et al.  Angular distributions and total cross sections for D - formation from interaction of D + and D 0 with cesium , 1976 .

[14]  E. Shipsey,et al.  Theoretical cross sections for H-on-Cs ionic and neutral reactions , 1976 .

[15]  M. Geis,et al.  Measurement of electron loss cross sections for 0.25‐ to 5‐keV hydrogen atoms in atmospheric gases , 1976 .

[16]  C. Papageorgopoulos,et al.  Coadsorption of cesium and oxygen on Ni(100): I. Cesium probing of NiO bonding , 1975 .

[17]  J. W. Stearns,et al.  Intense, mixed-energy hydrogen beams for CTR injection , 1975 .

[18]  F. Roussel,et al.  Measurements of the vapor pressure of cesium by absorption of resonance radiation, λ = 8521 Å , 1974 .

[19]  A. Valance,et al.  Absolute Detection and Collisional Destruction of 2.5-keV Metastable Hydrogen Atoms Produced by a Charge-Exchange Process in Cesium Vapor , 1972 .

[20]  C. F. Barnett,et al.  A calibrated neutral atom spectrometer for measuring plasma ion temperatures in the 0.165- to 10-keV energy region , 1972 .

[21]  T. Minemoto,et al.  Transverse Relaxation of Optically Pumped Cesium Atoms , 1971 .

[22]  A. Futch,et al.  MEASUREMENTS OF EXCITED-STATE POPULATION RATIOS OF ATOMIC HYDROGEN PRODUCED BY CHARGE-EXCHANGE NEUTRALIZATION OF ENERGETIC PROTON BEAMS. , 1970 .

[23]  A. Valance,et al.  Attenuation of a 2.5 keV proton beam by inelastic collisions in caesium vapour , 1970 .

[24]  H. Fleischmann,et al.  Stripping and ionization in Low-energy collisions of H on O2 and N2 , 1969 .

[25]  D. H. Loyd,et al.  Charge-exchange collisions between hydrogen ions and cesium vapor in the energy range 0.5-20 kev. , 1969 .

[26]  D. H. Loyd,et al.  Charge-Exchange Collisions Between Helium Ions and Cesium Vapor in the Energy Range 1.5-25 keV , 1968 .

[27]  A. C. Smith,et al.  CHARGE TRANSFER BETWEEN POSITIVE CESIUM IONS AND CESIUM ATOMS , 1962 .

[28]  C. F. Barnett,et al.  CHARGE EXCHANGE CROSS SECTIONS OF HYDROGEN IONS IN GASES , 1956 .

[29]  J. B. Taylor.  VAPOR PRESSURE OF CAESIUM BY THE POSITIVE ION METHOD , 1937 .