AC Series

The AC series is the "gentlest surface analyzer" that uses an ultra-sensitive electron sensor to count photoelectrons one by one in the air.
The instrument irradiates the surface of a sample placed in the air with weak UV ray and extracts extremely small amounts of photoelectrons.
The measurement proceeds with minimal irritation to the sample surface.
We can know the surface state of a material from the relationship between the UV energy and the number of photoelectrons.
Now, let's measure the true surface as it is in the atmosphere, without destroying the surface by X-rays or electron beam irradiation or by extracting a large number of electrons.

Global warming

Interview

Introductory video

Product information: AC-2S series / AC-5 / AC-3 / AC-2

AC-25 Series

New product

AC-2S Series

Concurrent launch of three models in the AC-2S Series

AC-2S Pro α AC-2S Pro β AC-2S
AC-5

Supports measurement of large samples and/or large numbers of samples

AC-5

Features

New sensor capable of counting up to 4,000 photoelectrons per second

Compatible with large samples measuring up to 180 mm × 180 mm

Spot-specified measurement measures desired areas.

The sample changer(*) allows automatic measurement of up to 25 flat or powder samples.

Incorporates an Xe (xenon) lamp(*) for high accuracy measurements, even for substances with low electron emission, like toner.

AC-5
AC-3

Capable of measuring up to 7.0 eV at atmospheric pressure

AC-3

Features

Capable of measuring up to 7.0 eV at atmospheric pressure Incorporates special nitrogen substitution optical system capable of irradiating samples under atmospheric conditions with far ultraviolet light at energies of 6.2 eV or greater--something previously impossible due to atmospheric absorption.

AC-3
AC-2

Compact size and reasonable cost have made these devices popular worldwide.

AC-2

Features

The AC Series are the most widely used models worldwide for ionization potential measurements

Maximum UV intensity of at least 500 nW

AC-2
Discontinued
Usage examples.
An understanding of material surfaces is essential to harnessing the special characteristics of surfaces and boundaries.
Here we provide examples involving the examination of surface electron characteristics and surface contamination of
materials and components in fields ranging from electronic devices to catalysts and electrodes.
Principle
Discussion of principles on which the models in the AC Series are based...
photoelectron yield spectrometry for gentle analysis of delicate surfaces,
open counter for counting individual electrons at atmospheric pressure, electronic states, work function, and ionization potential

Support information

Demonstration test

Other information