Pressure-dependent decay of the 2p5-3p configuration in neon excited by alpha particles
Pressure-dependent decay of the 2p5-3p configuration in neon excited by alpha particles
复制标题
α粒子激发的氖气中2p5-3p构型的压力依赖性衰减
DOI：
10.1088/0953-4075/25/16/008
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
O. Solin
中科院分区：
文献类型：
--
作者：
P. Lindblom;T. Olsson;K. Aho;O. Solin
研究了高能脉冲α粒子束激发的Ne(2p53p)态在70-1500 mbar压力范围内的衰变与压力的关系。2p53p态或者在几ns内迅速填充，或者通过2p53p态内的后续碰撞转移填充。高于300mbar的所有2p53p态的衰减率都与压强成线性关系，不受2p53p态俘获的影响，因为这些态被准分子的形成所减少。低于300mbar的衰减率是通过陷阱来降低的。没有发现准分子形成的二次压力依赖关系，形成速率的上限估计为(6×10-7(Ns Mbar2)-1)。给出了2p53p组态内部和外部碰撞转移速率的估计值。
The pressure dependence of the decay of the Ne (2p53p) states excited by an energetic pulsed alpha -particle beam is studied in the pressure range 70-1500 mbar. The 2p53p states are populated either promptly, within a few ns, or by subsequent collisional transfer within the 2p53p states. The decay rates of all the 2p53p states above 300 mbar are linear with the pressure and unaffected by trapping from the 2p53p states as these are depopulated by excimer formation. Below 300 mbar the decay rates are reduced by trapping. No quadratic pressure dependence due to excimer formation is found; the upper limit for the formation rate is estimated as (6*10-7 (ns mbar2)-1. Estimated values for the rates of collisional transfer within and out of the 2p53p configuration are given.