演題概要

ポスター発表

第3日　5月17日（水）　　P会場（ホワイエ，会議室1004-1007）

3P-03　　PDF

Development of Femtosecond Laser Desorption/Ionization Time-of-Flight Mass Spectrometer based on Ion Trajectory Simulation

(¹阪大院理・ ²京大院理・ ³阪大院工)
^o王健仲¹・ 兼松泰男¹・ 井川翔太¹・ 西澤正崇¹・ 松田冬樹²・ 邨次敦³・ 河井洋輔¹・ 豊田岐聡¹

Femtosecond laser desorption/ionization has gained attention in recent years as a relatively new ionization technique in mass spectrometry imaging. Most of the femtosecond laser applications in mass spectrometry use multiphoton absorption and ionization in a high electric field. To expect to achieve mass spectrometry with highly efficient, non-thermal, and non-destructive ion desorption/ionization. We are developing a time-of-flight (TOF) mass spectrometer using the ultrashort laser pulse as a desorption/ionization source. We used CsI as a sample. We analyzed the initial velocity distribution of emitted ions based on trajectory simulation in the electric acceleration field which is calculated by the surface charge method. We evaluated emitted ions’ initial velocity distribution from analysis of ion TOF spectra.