A velocity map imaging detector with an integrated gas injection system

被引：78

作者：

Ghafur, O. ^{[1
]}

Siu, W. ^{[1
]}

Johnsson, P. ^{[1
]}

Kling, M. F. ^{[1
,3
]}

Drescher, M. ^{[2
]}

Vrakking, M. J. J. ^{[1
]}

机构：

[1] FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands

[2] Univ Hamburg, Inst Expt Phys, D-22761 Hamburg, Germany

[3] Max Planck Inst Quantum Opt, D-22761 Garching, Germany

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2009年 / 80卷 / 03期

基金：

瑞典研究理事会;

关键词：

beam handling techniques; ion optics; Monte Carlo methods; photon-nucleus reactions; xenon; yttrium compounds;

D O I：

10.1063/1.3085799

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present the design of a velocity map imaging spectrometer where the target gas is injected from a capillary that is integrated in the repeller plate of the ion optics assembly that drives electrons/ions formed by ionization or dissociation to a two-dimensional detector. The geometry of this design allows the use of gas densities in the interaction region that are two to three orders of magnitude higher than the densities that are used in standard velocity map imaging spectrometers, making the detector suitable for working with weak light sources such as newly developed attosecond pulse sources, or (quasi-)cw sources such as synchrotrons. In a test where monoenergetic photoelectrons were generated by six-photon ionization of Xe (utilizing the second harmonic of a neodymium doped Nd:YAG), the kinetic energy resolution of the spectrometer was found to be Delta E/E=1.8%. This number was found to be in good agreement with Monte Carlo simulations.

引用

页数：6

共 16 条

[1] TWO-DIMENSIONAL IMAGING OF STATE-SELECTED PHOTODISSOCIATION PRODUCTS DETECTED BY MULTIPHOTON IONIZATION
CHANDLER, DW
HOUSTON, PL
[J]. JOURNAL OF CHEMICAL PHYSICS, 1987, 87 (02) : 1445 - 1447
[2] Velocity map imaging of ions and electrons using electrostatic lenses: Application in photoelectron and photofragment ion imaging of molecular oxygen
Eppink, ATJB
Parker, DH
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 1997, 68 (09) : 3477 - 3484
[3] Slice imaging: A new approach to ion imaging and velocity mapping
Gebhardt, CR
Rakitzis, TP
Samartzis, PC
Ladopoulos, V
Kitsopoulos, TN
[J]. REVIEW OF SCIENTIFIC INSTRUMENTS, 2001, 72 (10) : 3848 - 3853
[4] Single-cycle nonlinear optics
Goulielmakis, E.
Schultze, M.
Hofstetter, M.
Yakovlev, V. S.
Gagnon, J.
Uiberacker, M.
Aquila, A. L.
Gullikson, E. M.
Attwood, D. T.
Kienberger, R.
Krausz, F.
Kleineberg, U.
[J]. SCIENCE, 2008, 320 (5883) : 1614 - 1617
[5] Velocity map imaging of atomic and molecular processes at the free electron laser in Hamburg (FLASH)
Johnsson, P.
Siu, W.
Gijsbertsen, A.
Verhoeven, J.
Meijer, A. S.
van der Zande, W.
Vrakking, M. J. J.
[J]. JOURNAL OF MODERN OPTICS, 2008, 55 (16) : 2693 - 2709
[6] High resolution slice imaging of a molecular speed distribution
Lipciuc, ML
Buijs, JB
Janssen, MHM
[J]. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (02) : 219 - 223
[7] MAURITSSON J, UNPUB
[8] Attosecond electron wave packet interferometry
Remetter, T.
Johnsson, P.
Mauritsson, J.
Varju, K.
Ni, Y.
Lepine, F.
Gustafsson, E.
Kling, M.
Khan, J.
Lopez-Martens, R.
Schafer, K. J.
Vrakking, M. J. J.
L'Huillier, A.
[J]. NATURE PHYSICS, 2006, 2 (05) : 323 - 326
[9] ROSCAPRUNA F, 2001, THESIS AMOLF
[10] State-resolved differential cross-section measurement of Cl+C2H6 → HCl+C2H5 reaction using single-beam velocity mapping
Samartzis, PC
Smith, DJ
Rakitzis, TP
Kitsopoulos, TN
[J]. CHEMICAL PHYSICS LETTERS, 2000, 324 (5-6) : 337 - 343

← 1 2 →