SEM (Scanning Electron Microscope) is a type of electron microscope. By using electrons, which have a shorter wavelength than light, it is possible to see finer images than with optical microscopes that use visible light.

A scanning electron microscope scans a specimen with a narrowly focused electron beam in a vacuum, and constructs and displays an image from information on the coordinates of the electron beam. Normally, the image is acquired using secondary electrons emitted from the object under the influence of the incident electrons. In addition to images of secondary electrons, scanning electron microscopes detect reflected electrons, transmitted electrons, X-rays, cathodoluminescence, internal electromotive force, etc., and analyze various information such as data on the composition of the sample.

Among scanning electron microscopes, those that use transmitted electrons are called STEM (Scanning Transmission Electron Microscope). In some cases, scanning electron microscopes apply a negative bias voltage to the sample stage in order to obtain a clear image.

Matsusada Precision offers a wide range of power supplies for scanning electron microscopes, including the PrecisionSEM5600, high voltage power supplies for acceleration, filaments, bias, lenses, and detectors.

This image introduces RA series, RB series and TA series.
Related words:
  • X-ray
  • secondary electron
  • incident electron
  • bias
  • cathode luminescence

Recommended products

In addition to Scanning Electron Microscope PrecisionSEM5600, we have various kind of products such as high voltage power supplies for acceleration that are available for electron microscopes along with power supplies for filaments, bias, lenses, and detectors.

AU series

AU series

output voltage
0 to +120kV/-120kV
output current
0 to 2.2A
output power
0 to 2.2kW
Low profile and lightweight

Digital interface is available.Wide lineup of over 300 models, Various remote control and monitor functions

AK series

AK series

output voltage
0 to +120 kV/-120 kV
output current
0 to 4.25 A
output power
0 to 6.4 kW
High power 6.4 kW/Compact

6.4 kW in 4 U, Digital interface is available. Wide lineup of over 100 models

KA series

KA series

output voltage
0 to 30kV
output current
0 to 20mA
output power
0 to 10W
High Stability and Low Noise High Voltage Power Supply

Ideal for SEM and MASS

RA/RB series

RA/RB series

output voltage
0 to 40 kV
output current
0 to 200 mA
output power
0 to 60 W
High power & Low Noise HV Power Supplies

ideal for PMT, E-Beam, HV testing

J4/J6 series

J4/J6 series

output voltage
0 to 5kV
output current
0 to 8mA
output power
6W Max
High Voltage Power Supply for PMT

Ideal for photo tubes, GM tubes, and radiation counters

K10 series

K10 series

output voltage
0 to 10kV
output power
0 to 10W
output current
0 to 10mA
Compact HV module for SEM and MASS

Ultra compact size 70mm width

KA-R series

KA-R series

output voltage
0 to +30 kV/-30 kV
output current
0 to 1 mA
output power
0 to 10 W
SEM and MASS Spectrometry High Voltage Power Supply

Output polarity changed by external signal

KS-R series

KS-R series

output voltage
0 to +20 kV/-20 kV
output current
0 to 0.1 mA
output power
0 to 2 W
High Voltage Power Supply for SEM and MASS

Output voltage, current monitor

K12-R series

K12-R series

output voltage
0 to +30 kV/-30 kV
output current
0 to 1.2 mA
output power
0 to 12 W
Reversible Polarity & High Stability

Ideal for SEM and MASS

K3-R series

K3-R series

output voltage
0 to +10 kV/-10 kV
output current
0 to 3 mA
output power
0 to 3 W
MASS spectrometer reversible power supplies

Ideal for SEM and MASS

SEM series

SEM series

output voltage
0 to -30kV
output current
0 to 0.3mA
output power
0 to 9W
Low noise HV power supply for SEM

High reliability design and appropriate protection circuits

MDC series

MDC series

output voltage
0 to +24 Vdc
output current
0 to 2 A
Continuous isolation voltage
15 kVdc
High Voltage Isolation Power Supply

High output of 48 W for operating multiple power supplies

FDC series

FDC series

output voltage
7.5 V
output current
0 to 5 A
output power
0 to 37.5 W
Floating filament power supply

Control with external control signal is available

TM series

TM series

output voltage
0 to 3kV
output current
0 to 2mA
output power
0 to 1.6W
Ultra Low Ripple PCB Mountable High Voltage Power Supply

Low ripple, high stability

TD series

TD series

output voltage
0 to 2kV
output current
0 to 14mA
output power
0 to 5W
High power Power Supply for photomultiplier

Low ripple/noise and high-end performance

TEH series

TEH series

output voltage
0 to 1kV
output current
0 to 20mA
output power
0 to 10W
High power HV Power Supply

High power 10W for PMT

HEB series

HEB series

output voltage
0 to -60 kV
output current
0 to 5 A
Electron Beam Power Supply

Excellent temperature coefficient, Multi function