Doubly excited states in Helium close to the double ionization threshold:: Angular and energy resolved partial cross sections

被引：3

作者：

Czasch, A. ^{[1
]}

Schoeffler, M. ^{[1
]}

Jahnke, T. ^{[1
]}

Schoessler, S. ^{[1
]}

Hattass, M. ^{[1
]}

Weber, Th. ^{[1
]}

Weckenbrock, M. ^{[1
]}

Titze, J. ^{[1
]}

Wimmer, C. ^{[1
]}

Staudte, A. ^{[1
]}

Kammer, S. ^{[1
]}

Voss, S. ^{[1
]}

Doerner, R. ^{[1
]}

Schmidt-Boecking, H. ^{[1
]}

Rost, J. M. ^{[2
]}

Schneider, T. ^{[2
]}

Liu, C. ^{[3
]}

机构：

[1] Univ Frankfurt, Inst Kernphys, D-6000 Frankfurt, Germany

[2] Max Planck Inst Phys Komplexer Syst, Dresden, Germany

[3] Kansas State Univ, Dept Phys, Manhattan, KS 66506 USA

来源：

PHYSICA SCRIPTA | 2004年 / T110卷

关键词：

D O I：

10.1238/Physica.Topical.110a00141

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This is a report about a novel experiment on double excitation of Helium by absorption of synchrotron radiation close to the double ionization threshold at 79 eV. Partial cross-sections for single-ionization from 78.15 eV up to 78,9 eV (photon energy) with an energy resolution of 3 meV have been measured. The technique described in this article allows for an angular and energy resolved measurement of low energy electrons with a high detection efficiency due to an angular acceptance of 4 pi solid angle.

引用

页码：141 / 143

页数：3

共 50 条

[41] Differential cross sections for photo-double-ionization of the helium atom
Briggs, JS
Schmidt, V
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2000, 33 (01) : R1 - R48
[42] Vibrationally resolved ionization cross sections for the ground state and electronically excited states of the hydrogen molecule and its isotopomeres
Wunderlich, D.
ATOMIC DATA AND NUCLEAR DATA TABLES, 2021, 140
[43] Ab initio double photoionization cross sections for helium down to threshold
Selles, P
Malegat, L
Kazansky, AK
ELECTRON AND PHOTON IMPACT IONIZATION AND RELATED TOPICS 2004, 2005, (183): : 141 - 152
[44] Doubly differential cross sections for ionisation in proton–helium collisions at intermediate energies: energy and angular distribution of emitted electrons
K. H. Spicer
C. T. Plowman
Sh. U. Alladustov
I. B. Abdurakhmanov
I. Bray
A. S. Kadyrov
The European Physical Journal D, 2023, 77
[45] Beat structure in the doubly excited Rydberg states converging to the N=2 threshold of helium
Follath, R
Reichardt, G
Schwarzkopf, O
Gudat, W
SURFACE REVIEW AND LETTERS, 2002, 9 (01) : 165 - 168
[46] ELECTRON-IMPACT IONIZATION OF HELIUM - A MEASUREMENT OF (E,2E) DIFFERENTIAL CROSS-SECTIONS CLOSE TO THRESHOLD
FOURNIERLAGARDE, P
MAZEAU, J
HUETZ, A
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1984, 17 (17) : L591 - L596
[47] The hydrogen molecule under the reaction microscope: single photon double ionization at maximum cross section and threshold (doubly differential cross sections)
Weber, Thorsten
Foucar, Lutz
Jahnke, Till
Schoeffler, Markus
Schmidt, Lothar
Prior, Michael
Dorner, Reinhard
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2017, 50 (16)
[48] Photo-ionization of the helium atom close to the double-ionization threshold: Towards the Ericson regime
Gremaud, B
Delande, D
EUROPHYSICS LETTERS, 1997, 40 (04): : 363 - 368
[49] Doubly excited states of molecular hydrogen: theoretical absorption and photodissociation cross sections
Borges, I
Bielschowsky, CE
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 2000, 33 (09) : 1713 - 1724
[50] Spectral data for doubly excited states of helium with non-zero total angular momentum
Eiglsperger, Johannes
Schoenwetter, Moritz
Piraux, Bernard
Madronero, Javier
ATOMIC DATA AND NUCLEAR DATA TABLES, 2012, 98 (02) : 120 - 148

← 1 2 3 4 5 →