KH(X1Σ+,v=0-3)与H2之间的振动碰撞能量转移(英文)

王倩; 谢宁; 马凯迪; 戴康

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KH(X¹Σ⁺,v=0-3)与H₂之间的振动碰撞能量转移(英文)

更新时间：2026-01-21

- KH(X¹Σ⁺,v=0-3)与H₂之间的振动碰撞能量转移(英文)
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 30, Issue 2, Pages: 133-137(2013)
- 作者机构：
  
  新疆大学物理科学与技术学院
- 作者简介：
- 基金信息：
- DOI：
  CLC： O561.5
- Published：2013
- 稿件说明：
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[1]王倩,谢宁,马凯迪,等.KH(X~1Σ~+,v=0-3)与H_2之间的振动碰撞能量转移(英文)[J].新疆大学学报(自然科学版),2013,30(02):133-137+143.

王倩, 谢宁, 马凯迪, et al. KH(X¹Σ⁺,v=0-3)与H₂之间的振动碰撞能量转移(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2013, 30(2): 133-137.
[1]王倩,谢宁,马凯迪,等.KH(X~1Σ~+,v=0-3)与H_2之间的振动碰撞能量转移(英文)[J].新疆大学学报(自然科学版),2013,30(02):133-137+143. DOI：

王倩, 谢宁, 马凯迪, et al. KH(X¹Σ⁺,v=0-3)与H₂之间的振动碰撞能量转移(英文)[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 2013, 30(2): 133-137. DOI：

摘要

利用积分时间分辨荧光方法研究了KH(X1Σ+

v=0-3)与H2之间的振动碰撞能量转移。在K-H2混合样品池中

脉冲激光(泵浦激光)双光子激发K原子至6S态

K(6S)与H2反应生成KH(X1Σ+

v=0-3)分子

利用另一脉冲激光(检测激光)激发X1Σ+至A1Σ+态

通过测量0-100μs延迟时间内各振动态的时间分辨激光感生荧光光谱(LIF)强度

通过速率方程分析和谱线轮廓积分方法

得到了KH(X1Σ+

v=0-3)与H2之间的振动能级转移速率系数分别为(2.1±0.4)×1013cm3.s1for v=1→v=0

(6.5±1.2)×1013cm3.s1for v=2→v=1和(8.9±1.6)×1013cm3.s1v=3→v=2.同时得到扩散系数为(1.3±0.2)×104s1.

Abstract

The vibrational energy transfer from KH(X 1 Σ +

v=0-3) to H 2 was studied by the integrated time-resolved laser-induced fluorescence(LIF) technique.The vibrational levels of KH(X 1 +

v=0-3) generated in the reaction of K(6S) and H 2 at a temperature of 500K were selectively detected by the LIF technique.The time-resolved LIF-excitedA 1 + → X 1 + system in the presence of H 2 has been recorded with the delay time from 0 to to 100μs.The rate coefficients can be determined by the rate equations and the integrated profiles method(IPM).The rate coefficients are(2.1 ± 0.4)×10 13 cm 3.s 1 for v=1→ v=0

(6.5 ± 1.2)×10 13 cm 3.s 1 for v=2→ v=1 and(8.9 ± 1.6)×10 13 cm 3.s 1 for v=3→ v=2

respectively.The diffusion rate is(1.3 ± 0.2) × 10 4 s 1.

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references

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