The 72nd Annual Conference on Mass Spectrometry, Japan
Date:
Mon, Jun 10, - Wed, Jun 12, 2024
Venue:
Tsukuba International Congress Center (Takezono, Tsukuba City, Ibaraki Prefecture 305-0032, Japan)
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Abstract

Symposium Sessions

Day 2, June 11(Tue.) 10:15-10:30 Room A (Convention Hall 300)

2A-S-1015
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Development of Cryogenic D-SIMS

(Hokkaido Univ.)
oNaoya Sakamoto

Secondary ion mass spectrometry (SIMS) is a useful tool for characterizing solid surfaces. Dynamic SIMS is a method of continuously irradiating a sample surface with a high current of primary ions that exceeds the static SIMS limit (1012 ions/cm2). Continuous mass separation of secondary ions using magnetic sector enables analysis with high sensitivity and high duty ratio. Furthermore, imaging with stigmatic ion optics does not require a reduction in current to obtain fine images because spatial resolution is independent of probe size, and highly sensitive isotope images have been obtained with submicron spatial resolution [1].
Cryogenic sample stages were installed in dynamic SIMS instruments early on [e.g. 2]. A system for sample pretreatment within the SIMS instrument has also been developed [3]. However, there are few systems that transport samples frozen in an ultrahigh vacuum to the inside of the device. In this study, we report on the development of a system for transporting pretreated frozen samples to the cold stage of a dynamic SIMS system.