SYMPOSIUM on ATOMIC and SURFACE PHYSICS Maria Aim
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SYMPOSIUM ON ATOMIC AND SURFACE PHYSICS r CTs Maria Aim / Salzburg February 7-13 r 00«/, -to 3- SYMPOSIUM ON ATOMIC AND SURFACE PHYSICS EDITORS: 2 W. LINDINGER 8. 1982 F. HOWORKA T.D, MARK F. EGGER Maria Aim / Salzburg February 7-13 Organizing and Program Committee: Address: W. LINDINGER, Chairman Institut für Atomphysik F. HOWORKA, Vice Chairman der Universität Innsbruck T.D. MARK, Vice Chairman Karl Schönherr Straße 3 F. EGGER, Secretary General A-6o2o Innsbruck (Austria) Medieninhaber: Institut für Atomphysik der Universität Innsbruck, Karl Schönherr Straße 3, A-6o2o Innsbruck. Druck: STUDIA Studentenförderungsgesellschaft m.b.H., Josef Hirn Straße 7/II, A-6o2o Innsbruck. This symposium is held unter the patronage of Bundesminister für Wissenschaft und Forschung Dr. Hertha Firnberg Landeshauptmann von Salzburg DDr. Wilfried Haslauer Rektor der Leopold Franzens Universität zu Innsbruck Dr. Clemens August Andreae Two special sessions are devoted to LUDWIG BOLTZMANN and ERWIN SCHRÖDINGER, Austrian Scientists, who strongly influenced the development of our field INVITED LECTURES: A.W. Castlemari/ Jr. , CIRES Boulder Studies of clusters in the gas phase and application to an understanding of transitions from the gaseous to the surface and condensed state 1 J.H. Futrell, Univ. Salt Lake City A molecular dynamics study of the collision induced dissociation reactions of CH44" and + at electron volt collision energies 25 J.R. Peterson/ SRI Menlo Park Photodetachment of electrons from negative ions 79 H.J. Andrä, Univ. Münster Excitation and polarization of projectiles in ion-beam surface interaction at grazing incidence 83 E. Taglauer, MPI Garching Ion-surface interactions at low energies 1o1 H. Hellte SRI Menlo Park A photon's view of resonances in low-energy ion-atom collisions 141 A. Ding, HMI Berlin Investigation of ion molecule collisions by spectroscopic techniques 144 M.R. Flannery, GIT Atlanta Basic microscopic theory of chemical reactions in dense gases 216 F. Linder, Univ. Kaiserslautern Time scales in ion-molecule scattering 227 Ch. Schlier, Univ. Freiburg Some 'simple' ion-molecule reactions measured with guided beams 251 Z. Herman, CSAV Prag Ion-molecule reaction dynamics: its development in fifteen years 257 I.R. Gatland, GIT Atlanta Ion mobilities and ion-atom interaction potentials 31o F. Gounand, CEN Saclay Collision of Rydberg atoms 327 SPECIAL SESSIONS: A.W. Castleman, Jr., CIRES Boulder Ludwig Boltzmann - an admirer's view J. Rothleitner, Univ. Innsbruck Erwin Schrodinger and quantum mechanics ACKNOWLE DGEMENTS Substantial support for the conference and for the printing of the "Book of Contributions" was provided by Salzburger Landesregierung Bundesministerium für Wissenschaft und Forschung Leopold Franzens Universität, Innsbruck Firma Balzers Hochvakuum, Wien Firma Ing. Otto Folger, Wien Firma Honeywell-Austria, Wien Firma Keithley Instruments, Wien Firma Leybold-Heraeus, Wien Firma Philips - Industrie Elektronik, Wien Firma Walter Rekirsch, Wien Firma Schlumberger Overseas, Wien Firma SDS-Relais H. Sauer, Maria Enzersdorf Firma Rohde&Schwarz-Tektronix, Wien Raiffeisen-Zentralkasse Tirol Gebietsverband "Pinzgauer Saalachtal" TABLE OF CONTENTS Properties of ions and clusters Studies of clusters in the gas phase and application to an understanding of transitions from the gaseous to the surface and condensed state A.W. Castleman, Jr. 1 ft*,; Cluster properties studied by electron impact Tt ionization T.D. Mark, K. Stephan, H. Helm, J.H. Futrell, E. Mark, K.I. Peterson, A.W. Castleman, N. Djuric and A. Stamatovic 7 t, Charged Water- and CO2-clusters '/," M. Armbruster, H. Haberland and H.G. Schindler 19 A molecular dynamics study of the collision induced dissociation reactions of CH4+ and C3Hs+ at /" $.-J- '-•''- electron volt collision energies ' J.H. Futrell, Z. Herman and B. Friedrich 25 rr /'' Recent experiments on the excitation and decay of •['"' y small molecular ions T.R. Govers 3o •^ ,. On the metastable decay process N-O^"— >• NO + N -w • E. Mark, T.D. Mark, Y.B. Kim and K. Stephan 37 Metastable transitions as an evidence for several •'". / %- '.' ion-molecule reactions in S0_ at low pressure A. Stamatovic and M. Miletic 42 fi Unimolecular and collision induced dissociation of ' Ar, N_ and ArN? cluster ions K. Stephan and T.D. Mark 48 Composition measurements of stratospheric ions F. Arnold 54 Silicon negative ion chemistry in the atmosphere - in situ and laboratory measurements A.A. Viggiano, F. Arnold, D.W. Fahey, F.C. Fehsenfeld and E.E. Ferguson 65 (e,2e) experiments on He at intermediate energy (4oo-16oo eV) R. Camilloni, R. Fantoni, A. Giardini-Guidoni M. Rosi, G. Stefani and A. Zecca 7o ; Deviation of cracking patterns and their influence i>s on RGA-accuracy A. Breth and R. Dobrozemsky 75 / Photodetachment of electrons from negative ions / J.R. Peterson 79 •if Nützliche Bausteine als Problemloser in der Atom-und Oberflächenphysik Universell einsetzbares Quadrupol-Massenspek- lonenätz-System: von der trometer zur Partialdruck- einfachen Oberflächenrei- messung, zur Gasanalyse nigung bis zur spektralana- und zur Untersuchung von lytischen Oberflächenun- Festkörperoberflächen. tersuchung. \ ^^^S^" TS&iBaM 'foXivAw'sss/ Hochvakuum-Bedamp- Eine grosse Auswahl fungsanlagen zur Aufbrin- verschiedener lonenquellen gung von Dünnschicht- erschliessen dem Quadru- Systemen für optische und pol-Massenspektrometer elektronische Anwendun- vielfältige Einsatzmöglich- gen. keiten. Hochstrom-Ionenim- planter zur gezielten Beein- flussung von Werkstoff ei - genschaften. Hoch- und Ultrahochva- kuum-Systeme mit Turbo- molekular- oder Kryo-Pum- Hochvakuum Ges.m.b.H. pen zur Schaffung definier- Bischof-Faber-Platz 14 ter, reiner Arbeitsbedin- A-1180 Wien gungen. Tel.: (0222) 47 23 76 Ion - surface interaction Excitation and polarization of projectiles in ion- l^: beam surface interaction at grazing incidence H.J. Andrä " 83 Towards a unified model for the formation of l^* sputtered excited states R. Kelly 84 / Ion neutralization at surfaces P. Varga 91 i Measurement of metastable fractions in noble-gas ; "' ion beams W. Hofer, W. Vanek, P. Varga and H. Winter 95 I Ion-surface interactions at low energies L-- E. Taglauer 1o1 Photon stimulated desorption revisited D„ Menzel 1o6 Quasi-crystalline organic layers studied with photo-emission and meta-emission spectroscopies C. Boiziau, C. Juret, G. Lecayon, R. Nuvolone I' and C. Reynaud 111 Changes in the surface composition of Tie, TaC and WC under low energy ion bombardment H. Störi, G. Betz and P. Braun 117, Memory effects and cleaning of plasma tubes H.G. Lergon and K.G. Müller 123 Long time effects in radiation enhanced permeation of H_ through stainless steel tubes G. Schwarzinger and R. Dobrozemsky 129 Diffusion to the surface in the annealing of radia- tion damage in inorganic insulating solids W. Ritter and T.D. Mark 134 Spectroscopy and laser physics A photon's view of resonances in low-energy ion-atom collisions H. Helm 141 Investigation of ion molecule collisions by spectroscopic techniques A. Ding, K. Richter and U. Steinmetzger 144 Progress report on recent spectroscopic and laser relevant investigations F. Howorka, I. Kuen, W. Federer, B. Jelenkovic, J.H. Futrell, K. Rozsa, A. Ding and R.N. 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TAB • Vorschub automatisch oder Zeilen/Seitenstop • Übertragungsmodus Haib- und Vollduplex • Standard V-24 Schnittstelle • Ubertragungsrate 110 bis 9600 Baud • Einstellung der Baudrate über Tastatur 13.980,— + MVVSt. als Bausatz bzw. 19.970,- + MWSt. betriebsfertig ÜBRIGENS: es gibt auch komplette SYSTEME H 8 mit 8 Bit (8080A) H 11 mit 16Bit(DECLSl-11A) Komplette Peripherie: Normalpapierdrucker H-14 Floppy Disc Single oder Dual H-27 Lochstreifenleser/Stanzer H-10A Bildschirmterminal H-19 UND noch etwas: Neue Heath Software Fortran und Basic Compiler. Ing. Otto Folger HEATHKIT- A-1080 Wien. Blinaengasse 36 Tel 425121.432639 Excitation cross section variations with energy and their explanation in a Landau-Zener model studied in He -Ar and Ar -He encounters W. Federer, I. Kuen, F. Howorka, a. Jelenkovic, A. Ding and R.N. Varney 154 Picosecond UV-laser induced multiphoton ionization and fragmentation of benzene P. Hering, A.G.M- Maaswinkel and K.L. Kompa 16o Two-frequency investigation of multiple-photon absorption and dissociation of freons in u supersonic molecular beam *- E. Borsella, R. Fantoni and A. Giardini-Guidoni 162 Analysis of discrete and continuous laser induced fluorescence spectra of the A1EJ-X1EÄ band system of Sr2 ! '' G. Gerber and R. Möller 168 Coherent anti-Stokes Raman spectroscopy (CARS) in a pulsed molecular beam R.L. Byer, M.D. Duncan, F. König and P. Oesterlin 172 Basic problems associated with the interpretation of the fluorescence spectra in Doppler-shift laser spectroscopy K. Thomsen, W. Husinsky and G. Betz 178 He - Ne laser in hollow cathode discharge K. Rozsa, M. Janossy, F. Howorka and I. Kuen 184 Vacuum ultraviolet spectroscopy of hollow cathode discharges