Temperature dependence of the quenching of N2 (C 3Πu) by N2 (X) and O2 (X)

被引：19

作者：

Pereira, L. ^{[1
,2
]}

Morozov, A. ^{[1
,2
,3
]}

Fraga, M. M. ^{[1
,2
]}

Heindl, T. ^{[3
]}

Kruecken, R. ^{[3
]}

Wieser, J. ^{[4
]}

Ulrich, A. ^{[3
]}

机构：

[1] Univ Coimbra, LIP Coimbra, P-3004516 Coimbra, Portugal

[2] Univ Coimbra, Dept Fis, P-3004516 Coimbra, Portugal

[3] Tech Univ Munich, Phys Dept E12, D-85748 Garching, Germany

[4] Coherent GmbH, D-81379 Munich, Germany

来源：

EUROPEAN PHYSICAL JOURNAL D | 2010年 / 56卷 / 03期

关键词：

ELECTRON-BEAM EXCITATION; AIR FLUORESCENCE YIELD; NITROGEN;

D O I：

10.1140/epjd/e2009-00313-4

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The temperature dependences of the quenching rate constants of the states N-2 (C (3)Pi(u) v' = 0, 1) by N-2 (X) and of the state N-2 (C (3)Pi(u) v' = 0) by O-2 (X) are studied. Time-resolved light emission from the gas was analyzed in the temperature range from 300 K to 210 K keeping the gas at constant density. In case of quenching by N-2 (X), the quenching rate constant for the vibrational level v' = 0 increases by (13 +/- 3)% with gas cooling whereas the quenching rate constant for v' = 1 decreases by (5.0 +/- 2.5)% in this temperature range. For quenching by O-2 (X), the quenching rate constant decreases by (3 +/- 2)% with gas cooling. The temperature variation of the N-2 (C (3)Pi(u) v' = 0) emission intensity for pure nitrogen and dry air are calculated using the obtained quenching rate constants and is compared with the experimental data available in the literature.

引用

页码：325 / 334

页数：10

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[1] Temperature dependence of the quenching of N2 (C 3Πu) by N2 (X) and O2 (X)
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A. Ulrich
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