Gamma Spectroscopy & Compton Effect

Item Code: SN1038

Principle and Working:

This setup with internal pre-amplifier allows direct connection to scintillation detectors. The bipolar amplifier includes polarity selection and multiple shaping times when using different types of detectors with external pre-amplifiers. Upper and lower level discriminators may be set for rejection of unwanted signals. The high voltage supply is rated to +2048V for use with scintillation or proportional detectors. ...

Optional polarity selection is available for use with detectors requiring negative bias. A pre-amplifier power connector (±12V) is included for use with our model PA-1 external pre-amplifier. A 10µsec fixed conversion ADC allows high throughput with dead-time correction. Input selection for pre-amplifier, amplifier or ADC is controlled through computer. A background buffer is included for storing a spectrum when background subtraction, factional spectrum stripping or overlay is required. Presets include real time, live time and ROI integral.
UCS30 may be operated as a multichannel scaler for time correlated studies e.g. half-life decay. A special mossbauer mode is included with MSB output for synchronization of the drive circuit. X-ray mapping may be performed with the optional ROI output. An auto-calibrate mode is provided that automatically sets the HV and amplifier gain to 1 keV/channel using a Cs-137 source.




  • Complete spectroscopy system designed for nuclear science.
  • UCS-30 contains MCA (Multi-Channel Analyser) with an internal pre-amplifier, computer controlled amplifier, high voltage, upper and lower level discriminators, ADC, and Multichannel Scaling for half-life and decay studies
  • UCS-30 is operated using a computer (PC or Mac) via a USB connection.
  • It includes Mossbauer interface and preamplifier power output (±12 V) for connecting detectors with external preamplifiers such as proportional counters and CdZnTe probes.
  • Sodium iodide (NaI) scintillator is primarily used for detecting low levels of gamma radiation.

  • Detecting Gamma Radiation with a scintillation counter.
  • Recording and calibrating Gamma Spectrum.
  • Identifying & determining activity of radioactive samples
  • Qualitative observation of the Compton Effect.
  • Energy calibration.
  • Detector Energy Resolution.
  • Pair Production and Annihilation.
  • Counting Statistics.
  • Absorption of Gamma radiation.
  • Multichannel scaling and Half Life.

  • UCS 30 : Input BNC connector, Output MHV connector, High voltage 0 to +2048 volts,computer controlled in 2 volt increments, USB connection, AC Power adapter.
  • NaI Detector : For detecting low levels of gamma radiation. Dimension 38.1 mm x 38.1 mm (diameter x thickness), NaI crystal coupled to a photomultiplier tube.
  • Lead shield : To ship and store higher activity sources up to 1″ diameter disk sources. Exterior Dimensions 2.25” x 3.6”, Interior Dimensions 1.25” x 2.65”, Wall thickness 0.5”, Weight 2.13 kg.
  • Sources (order separately): Sealed disk (1″ diameter),Ba-133 1 μCi (37 kBq), Cd-109 1 μCi (37 kBq), Co-57 1 μCi (37 kBq), Co-60 1 μCi (37 kBq),Cs-137 1 μCi (37 kBq), Mn-54 1 μCi (37 kBq), Na-22 1 μCi (37 kBq), Mixed “Unknown”, Cs-137, 0.5 μCi (18.5 kBq), Zn-65, 1 μCi (37 kBq)
  • 1 Universal Computer Spectrometer with software (UCS30)
  • 1 NaI(Tl) Scintillation detector with stand
  • 1 USB Cable
  • 2 BNC Cable (for data collection and High Volatge)
  • 1 Set of 8 gamma sources (order separately)
  • 1 Set of 20 Absorbers
  • 1 Lead Shield for radioactive sources
  • 1 Lead Shield for Detector Holder
  • 1 Instuction Manual (CD Version)