Abstract
In the past 10 years, new electronic devices have been developed that allow fast coincidence measurements to be performed that are capable of simultaneously recording the individual spectra as well as the coincidence spectra of multiple detectors. Utilizing these devices with computer software allows multiparameter data acquisition which adds much more flexibility in data analysis. One of the capabilities that is enabled is that of obtaining two-dimensional spectra. In this work, the use of this equipment and the two-dimensional spectra obtained with it are used to allow two-dimensional diagonal summing. The main advantages of this approach are improved peak resolution and very low background (Compton continuum). Possible uses of the two-dimensional diagonal summing are identifying coincidence schemes, performing elemental analysis, and identifying trace elements in bulk samples. The spectra obtained are very promising for these applications.
| Original language | English |
|---|---|
| Pages (from-to) | 511-517 |
| Number of pages | 7 |
| Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |
| Volume | 525 |
| Issue number | 3 |
| DOIs | |
| State | Published - Jun 11 2004 |
| Externally published | Yes |
Funding
The authors gratefully acknowledge the financial support of: (1) the Associates Program—Nuclear Techniques in Oil Well Logging with present members Baker Atlas, Advantage Engineering, Shell, and ExxonMobil; (2) the US Department of Energy under Grant No. FG07-99ID13775 entitled “Coincidence Prompt Gamma-Ray Neutron Activation Analysis”, and (3) Sabia, Inc. for a Subcontract on the STTR Project with the US Department of Energy entitled “Real-Time Monitoring of Ash, Sulphur, and Elemental Contaminants by Neutron-Gamma Spectroscopy”.
Keywords
- Gamma-gamma coincidence
- PGNAA
- Two-dimensional diagonal summing