Search Results - "DeVol, TA"

CONVERSION ELECTRON SPECTROSCOPY FOR ISOTOPIC ANALYSIS OF SPECIAL NUCLEAR MATERIAL by Watson, MW, DeVol, TA

“…Special nuclear material (SNM) isotopes primarily decay via alpha particle emission, making alpha spectroscopy the most common measurement technique. However,…”
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MODIFYING ULTRAFILTRATION MEMBRANES TO CAPTURE RADIO-NUCLIDES FOR ACTIVITY AND ISOTOPIC COMPOSITION DETERMINATION by Darge, AW, DeVol, TA, Husson, SM

“…This presentation will describe new membrane materials and sample collection and concentration methods, combined with state-of-the-art analysis techniques, for…”
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CHARACTERISTIC OF A PuBe NEUTRON SOURCE by Willey, AH, DeVol, TA, Martinez, NE

“…Determination of neutron dose can be challenging and requires knowledge of neutron energy and neutron flux. The goal of this project was to characterize the…”
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DEVELOPMENT AND CHARACTERIZATION OF EXTRACTIVE SCINTILLATING RESINS FOR DETERMINATION OF ULTRA-LOW-LEVEL PLUTONIUM IN AQUATIC SYSTEMS by Fullmer, WK, Seliman, A, Husson, SM, Powell, BA, DeVol, TA

“…Extractive scintillating resins (ESRs) simplify quantification of radionuclides from aqueous solutions by reducing the number of steps required and by reducing…”
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HYBRID EXTRACTIVE SCINTILLATOR RESIN FOR SIMULTANEOUS ADSORPTION AND DETECTION OF CESIUM-137 FROM AQUEOUS SOLUTIONS by DeVol, TA, Pujari, A, Sistryak, R, Husson, SM, Bliznyuk, VN, Seliman, AF

“…A hybrid extractive scintillating resin was developed using potassium ferrierite embedded in porous polymeric scintillating beads for concentration and…”
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Evaluation of Flow Cell Detector Configurations Combining Simultaneous Preconcentration and Scintillation Detection for Monitoring of Pertechnetate in Aqueous Media by Hughes, Lara D, DeVol, Timothy A

“…Flow cell detectors were developed for simultaneous concentration and scintillation detection of technetium-99 in water. Evaluated flow cell geometries…”
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Application of MnO2 coated scintillating and extractive scintillating resins to screening for radioactivity in groundwater by Ayaz, Birsen, DeVol, Timothy A.

“…Manganese dioxide coated polyvinyltoluene (PVT) scintillating and extractive scintillating (ES) resins, which can be used to simultaneously separate and…”
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On-line gross alpha radiation monitoring of natural waters with extractive scintillating resins by Hughes, Lara, DeVol, Timothy A.

“…Extractive scintillating resins, which are used to simultaneously separate and quantify radioactivity in aqueous solutions, were developed for low-level alpha…”
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Simultaneous Separation and Detection of Actinides in Acidic Solutions Using an Extractive Scintillating Resin by Roane, J. E, DeVol, T. A

“…An extractive scintillating resin was evaluated for the simultaneous separation and detection of actinides in acidic solutions. The transuranic extractive…”
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Monte Carlo modeling of heterogeneous scintillation flow-cell detectors by Tan, H., DeVol, T.A.

“…Heterogeneous flow-cell detectors packed with scintillator granules were simulated with the Monte Carlo code, PENetration and Energy LOss of Positrons and…”
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Evaluation of an extractive scintillation medium for the detection of uranium in water by Roane, J. E., DeVol, T. A.

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Experimental-theoretical response of a ZnS(Ag) scintillating disc for gross-alpha measurements of aqueous radioactivity by Ayaz, B., DeVol, T.A.

“…A ZnS(Ag) scintillating disc coupled to a photomultiplier window tube was used to quantify the experimental detection efficiency of thick alpha sources and…”
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Measurement of radionuclides using ion chromatography and on-line radiation detection by Fjeld, R. A., DeVol, T. A., Leyba, J. D., Paulenova, A.

“…A technique is presented for the relatively rapid measurement of actinide and beta-emitting radionuclides in waste streams and environmental samples. It uses…”
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The use of extraction chromatography resins to concentrate actinides and strontium from soil for radiochromatographic analyses by Roane, J.E., DeVol, T.A., Leyba, J.D., Fjeld, R.A.

“…An analytical technique utilizing selective extractant resins to concentrate strontium and actinides from soil followed by separation with radiochromatography…”
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Development of a flow-cell alpha detector utilizing microencapsulated CsI:Tl granules and silicon PIN-photodiodes by Hui Tan, DeVol, T.A.

“…A flow-cell detector was developed utilizing microencapsulated granular CsI:Tl and silicon PIN-photodiodes for gross alpha radiation quantification. The CsI:Tl…”
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ANOMALOUSLY HIGH LEVELS OF URANIUM AND OTHER NATURALLY OCCURRING RADIONUCLIDES IN PRIVATE WELLS IN THE PIEDMONT REGION OF SOUTH CAROLINA by Hughes, Lara D, Powell, Brian A, Soreefan, Aurelie M, Falta, Deborah A, DeVol, Timothy A

“…Anomalously high levels of uranium and Pb have been detected in untreated domestic groundwater wells near Simpsonville/Fountain Inn, South Carolina. Nine wells…”
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THEORETICAL ORGANICALLY BOUND TRITIUM DOSE ESTIMATES by DeVol, T. A, Powell, B. A

“…ABSTRACT—This paper illustrates a theoretical approach to estimating the dose associated with the ingestion of both organically bound tritium and tissue free…”
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URANIUM IN HOT WATER TANKS: A SOURCE OF TENORM by DeVol, T A, Woodruff, R L

“…Uranium deposits were detected inside hot water tanks using gamma-ray spectroscopic techniques and corroborated by the difference in the uranium concentration…”
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Digital alpha/beta pulse shape discrimination of CsI:Tl for on-line measurement of aqueous radioactivity by Tan, H., DeVol, T.A., Fjeld, R.A.

“…A digital pulse shape discrimination data acquisition system developed around a commercially available digital oscilloscope card and data acquisition software…”
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Evaluation of granulated BGO, GSO:Ce, YAG:Ce, CaF2:Eu and ZnS:Ag for alpha/beta pulse shape discrimination in a flow-cell radiation detector by DeVol, T.A, Chotoo, S.B, Fjeld, R.A

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