Detecting alpha particles through scintillation in porous materials. Master`s thesis
Thesis/Dissertation
·
OSTI ID:91734
This thesis presents the results of a preliminary study of parameters essential to the development of a scintillation flow-cell detector with improved characteristics over existing cells. Such a detector with better than 10% alpha energy resolution could provide in situ capability to detect and identify important alpha-emitting radionuclides in dilute aqueous solutions. Gel-silica is a potential candidate that may provide the needed improvement in resolution while maintaining 100% detection efficiency; however, gel-silica with useful light output is yet to be developed. As a step toward realizing the system described, the dependence of alpha detection efficiency and intrinsic energy resolution on the phase dimensions in heterogeneous scintillation detectors is examined. Two main areas of this research are: (1) computer modeling of the geometric detection efficiency and intrinsic energy resolution in porous glass scintillation detectors, and (2) experiments designed to test model predictions and provide data on the detection of alphas in porous glass structures. Experimental emphasis is on alpha detection in gel-silica filled with liquid scintillant. Results show that phase dimensions must be considered in constructing a flow-cell detector for alpha spectroscopy, and that the dimensions available in gel-silica provide for excellent intrinsic energy resolution, as well as 100% detection efficiency.
- Research Organization:
- Air Force Inst. of Tech., Wright-Patterson AFB, OH (United States). School of Engineering
- OSTI ID:
- 91734
- Report Number(s):
- AD-A--289313/9/XAB; AFIT/GAP/ENP--94D-05
- Country of Publication:
- United States
- Language:
- English
Similar Records
Detecting alpha radiation by scintillation in porous materials
SCINTILLATING GLASSES FOR ALPHA COUNTING
High resolution alpha spectroscopy by liquid scintillation techniques. Master's thesis
Journal Article
·
Wed Oct 01 00:00:00 EDT 1997
· IEEE Transactions on Nuclear Science
·
OSTI ID:562062
SCINTILLATING GLASSES FOR ALPHA COUNTING
Technical Report
·
Mon May 15 00:00:00 EDT 1961
·
OSTI ID:4752357
High resolution alpha spectroscopy by liquid scintillation techniques. Master's thesis
Technical Report
·
Fri Aug 01 00:00:00 EDT 1980
·
OSTI ID:6380574