Photo Emission Electron Microscopy (PEEM)PEEM is an electron microscope that detects photoelectrons emitted from a sample by irradiating short wavelength light such as ultraviolet light.

MyPEEM

PEEM is an electron microscope that detects photoelectrons emitted from a sample by irradiating short wavelength light such as ultraviolet light.

POINT

Only general-purpose PEEM in Japan
Visualize the status of the electron
Electrostatic corrector is equipped

Outer dimension (Main unit)

W3400mm×D1400mm×H1900mm

Vacuum pressure	Field of view	Magnification ratio	Sample stage
10-7Pa	40～800μm	50～1000	5 axis / manual

INFORMATION
SPEC.
MAINTENANCE

Photo Emission Electron Microscopy (PEEM)

PEEM is an electron microscope that detects photoelectrons emitted from a sample by irradiating short wavelength light such as ultraviolet light.

Prime Minister’s Commendations
Monodzukuri Japan Award
Product/Technical development award for excellence

Patent No. 5690610

Use

Track the thin film growth processes and dynamic processes of catalytic reactions.
It can be applied to dynamic observation of surface electronic states by gas adsorption and desorption, and spin observation using circularly polarized ultraviolet light.

Features

【Feature1】Stand-alone type

This equipment integrates the PEEM itself, chamber, power supply box, and control software, so that it can be operated without any optional items.

【Feature2】Exchange of the light source

It has the configuration to irradiate the ultraviolet light as the excitation light source from outside the vacuum through the viewport so that various light sources can be easily exchanged.

【Feature3】Manual selection

It has the configuration to irradiate the ultraviolet light as the excitation light source from outside the vacuum through the viewport so that various light sources can be easily exchanged.

【Feature4】Originality

Custom made sample holder is available on demand besides the standard sample holder.

Overview

This equipment accelerates the speed of photoelectrons (secondary electrons) which are excited by irradiating the sample with ultraviolet light using the negative high voltage applied to the sample. Then, PEEM image projected on the screen using a three-stage electrostatic lens and a two-stage correction lens is recorded by CCD camera or the like.
PEEM images can be easily acquired simply by adjusting the sample height according to the field of view which is set in advance on the software.
In addition, by applying voltage to the sample, the chamber, which is the photoelectron path, can be placed at ground potential so that it has a safe and compact design.
PEEM概要図

1.Electrostatic lens

This equipment consists of three-stage lens system.
Each three-stage lens system consists of 4-pole objective lens, 3-pole intermediate lens, and 5-pole projection lens. In addition, by operating the 2-pole, 1-pole, and 2-pole variable electrodes with the power operation software, the desired magnification and field of view can be obtained.
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2.Electrostatic corrector

This equipment has two-stage electrostatic corrector that was originally developed to correct aberrations caused by lens and assembly.
By applying a voltage multiplied by the correction coefficient to each electrode, optical axis correction and astigmatism correction can be performed simultaneously with two-stage corrector.