Hybrid Mass-Alpha Spectrometry for High Resolution Spectroscopy

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Researchers at Purdue University have developed a new spectroscopic method for detecting trace amounts of alpha emitting radionuclides. Traditionally, detecting closely-spaced energetic alpha radiation-emitting isotopes at trace concentrations needing mass spectrometry has taken weeks. On the other hand, the Purdue hybrid technology rapidly and spectroscopically detects alpha radiation with ~100% sensitivity, less than 10 keV resolution, and an accuracy within 5% when evaluated against standards. This technology also maintains its sensitivity to weak alpha radiation in an intense field of gamma-beta radiation; the same apparatus also can be deployed for high-fidelity neutron spectroscopy.

Technology Validation: The Purdue researchers identified the ratio between two plutonium isotopes ranging from 1:0 to 0:1 to an accuracy within 12% and under 10 keV energy resolution.


- accurate
- high-energy resolution and sensitivity
- alpha and neutron radiation detection
- 100% background gamma-beta rejection
- rapid (<1 hr)


- spectroscopic detection of alpha and neutron radiation
Jan 20, 2023
Utility-Gov. Funding
United States

Jan 20, 2022
Provisional-Gov. Funding
United States
Purdue Office of Technology Commercialization
The Convergence Center
101 Foundry Drive, Suite 2500
West Lafayette, IN 47906

Phone: (765) 588-3475
Fax: (765) 463-3486
Email: otcip@prf.org