UCS30 Spectrometer

The UCS30 delivers cost-effective spectroscopy with seamless operation through our user-friendly USX spectroscopy software, providing users with unparalleled flexibility and control.

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The UCS30 stands out with its built-in preamplifier, designed for seamless integration with scintillation detectors. Its versatile bipolar amplifier provides the flexibility of polarity selection and supports various detector types that rely on external preamplifiers.

To ensure precise signal control, the UCS30 allows you to configure upper and lower level discriminators to filter out unwanted signals. Additionally, it incorporates a dedicated background buffer, which proves invaluable for tasks like background subtraction, fractional spectrum stripping, or overlay.

Operating with a robust high voltage supply rated at +2048 volts, the UCS30 accommodates scintillation or proportional detectors. It also offers optional polarity selection to meet the needs of detectors requiring negative bias. The unit features selectable inputs for preamplification, amplification, or direct ADC connection.

Beyond its standard pulse height analysis mode, the UCS30 serves as a versatile multichannel scaler, facilitating time-correlated studies such as half-life decay analysis. It even boasts a dedicated Mossbauer mode with MSB output for synchronized drive circuitry. Moreover, the device opens up the possibility of performing X-ray mapping, thanks to the optional ROI output.

Available in three different models

The UCS30 is available in three different models, each with a different number of channels – 1024 (1K), 2048 (2K), and 4096 (4K).

Auto-Calibrate using a Cs-137 source (not Included)

The UCS30 includes an auto-calibrate feature that sets the high voltage and amplifier gain to 1 keV per channel using a Cs-137 source.


The UCS30 uses Spectrum Techniques’ unique isotope identification feature – ISOMATCH.

Power AC line powered, auto sensing power supply for 100-250 volts, 10 watts total
High Voltage 0 to +2048 volts, computer controlled in 2 volt increments
Amplifier Preamplifier/Amplifier combination
Inputs/Connectors MHV Connector – accepts scintillation detectors
Interface USB 2.0
Software – Spectrum Techniques USX for PC
– Spectrum Techniques OSX for Mac
Modes – MCA for pulse analysis
– MSC for time related studies
Timers Real-time or live-time operation selectable in 1 second increments for PHA or dwell times from 10 ms to 600 seconds per channe in MCS mode
Dead Time System dead time is computed and displayed on screen during data acquisition
Isotope Identification Spectrum Techniques ISOMATCH
Housing Metal
Dimensions 6.6 x 33.3 x 20.6 cm (2.6 x 13.1 x 8.1 in.) (H x W x D)
Weight 2.56 kg (5.65 lbs)


  • View PDF      Quick Start Universal Computer Spectrometer Guide
  • View PDF      Universal Computer Spectrometer Manual


READ BEFORE YOU DOWNLOAD: Click Download to copy the USX Software installation file to your computer. After a short delay the file will appear at the bottom of your browser window. Use your mouse cursor to double-click on the file. This starts the installation.

  • Download      PC – 32-bit (Windows 7, 8, and 10)
  • Download      PC – 64-bit (Windows XP, 7, 8, 10, and 11)

NOTE: Spectrum Techniques is aware there is an issue with the USX software running on Windows 10, version 20H2 (released 10/20/2020). The issue was fixed with the release of Windows 10, version 21H1 (released 5/18/2021). If you are experiencing any issues, make sure Windows is running the most recent version.


  • Download      Mac – OSX Software

NOTE: Adobe Reader is necessary to view these PDF documents.  If you do not already have Adobe Reader installed on your computer, you can download the installer for free from the Adobe website.