High Voltage Power Supplies for SEM and MS

High voltage power supplies for Scanning Electron Microscope (SEM)

SEM is a technology to observe the microscopic world using electron beams accelerated by a high-voltage power supply. If the acceleration and bias voltages are not stable, the electron penetration depth in the specimen will also be inconsistent, resulting in an unfocused image.

Therefore, the stability of the high voltage power supply is one of the most critical factors in achieving high-resolution SEM imaging. Matsusada Precision produces power supplies with high stability, an excellent temperature coefficient, and low ripple, making them ideal for SEM applications. Compact power supplies that integrate the accelerator, bias, and filament sources into a single unit are also available.

SEM with typical Electron gun

High voltage power supplies

High voltage power supplies for Mass Spectrometry (MS)

Mass spectrometry uses ion beams for detection and measurement; therefore, the high voltage power supplies used for this application require extremely high stability. For example, in Time-of-Flight Mass Spectrometry (TOF-MS), one of the most popular mass spectrometry methods, poor stability in the accelerator power supply will cause the acceleration energy to vary with each measurement. Naturally, precise measurements cannot be expected with an unstable power supply. Matsusada Precision's mass spectrometry power supplies, with their high stability, excellent temperature coefficient, and extremely low ripple noise, deliver the best results.

High voltage power supplies