A photoelectron velocity map imaging spectrometer for experiments combining synchrotron and laser radiations

被引：61

作者：

O'Keeffe, P. ^{[1
]}

Bolognesi, P. ^{[1
]}

Coreno, M. ^{[1
]}

Moise, A. ^{[2
]}

Richter, R. ^{[2
]}

Cautero, G. ^{[2
]}

Stebel, L. ^{[2
]}

Sergo, R. ^{[2
]}

Pravica, L. ^{[3
]}

Ovcharenko, Y. ^{[4
]}

Avaldi, L. ^{[1
]}

机构：

[1] CNR, IMP, Area Ric Roma 1, I-00016 Monterotondo, Italy

[2] Sincrotrone Trieste SCpA, I-34149 Trieste, Italy

[3] Univ Western Australia, Crawley, WA, Australia

[4] Inst Elect Phys, UA-88017 Uzhgorod, Ukraine

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2011年 / 82卷 / 03期

关键词：

ELECTRON-ION; COINCIDENCE; IONIZATION; DETECTOR; PHOTOIONIZATION; SYSTEM; ATOMS; PROBE;

D O I：

10.1063/1.3563723

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A velocity map imaging/ion time-of-flight spectrometer designed specifically for pump-probe experiments combining synchrotron and laser radiations is described. The in-house built delay line detector can be used in two modes: the high spatial resolution mode and the coincidence mode. In the high spatial resolution mode a kinetic energy resolution of 6% has been achieved. The coincidence mode can be used to improve signal-to-noise ratio for the pump-probe experiments either by using a gate to count electrons only when the laser is present or by recording coincidences with the ion formed in the ionization process. (C) 2011 American Institute of Physics. [doi:10.1063/1.3563723]

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