通过芯能级光电子能谱测定中性氩团簇的尺寸

Size of neutral argon clusters from core-level photoelectron spectroscopy.

作者信息

Bergersen H, Abu-samha M, Harnes J, Björneholm O, Svensson S, Saethre L J, Børve K J

机构信息

Department of Physics, Uppsala University, Box 530, SE-751 21, Uppsala, Sweden.

出版信息

Phys Chem Chem Phys. 2006 Apr 28;8(16):1891-8. doi: 10.1039/b515554a. Epub 2006 Feb 8.

DOI:10.1039/b515554a

PMID:16633675

Abstract

Theoretical models of lineshapes in Ar2p photoionization spectra have been calculated for free, neutral argon clusters of different sizes. The lineshape models are fitted to experimental spectra and used to estimate the mean cluster size realized in the experiment. The results indicate that size estimators working from stagnation conditions [R. Karnbach, M. Joppien, J. Stapelfeldt, J. Wörmer and T.Möller, Rev. Sci. Instrum., 1993, 64, 2838] may underestimate the mean cluster size.

摘要

已针对不同尺寸的自由中性氩团簇计算了Ar2p光电离光谱中线形的理论模型。将线形模型与实验光谱进行拟合，并用于估计实验中实现的平均团簇尺寸。结果表明，根据停滞条件得出的尺寸估计器[R. 卡恩巴赫、M. 约皮恩、J. 斯塔佩尔费尔特、J. 沃默和T. 默勒，《科学仪器评论》，1993年，64卷，2838页]可能会低估平均团簇尺寸。