The new prompt gamma-activation analysis facility at Budapest

Molnár, Gábor; Belgya, T.; Dabolczi, L.; Fazekas, B.; Révay, Zs.; Veres, A.; Bikit, I.; Kis, Zoltán; Östör, J.

doi:10.1007/bf02109886

Cited by 51 publications

(12 citation statements)

References 11 publications

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“…Data for absolute γ-ray emission probabilities are based on the incident neutron energy being thermal, as specified in the current PGAA database [2.49]. By combining Equations (24) and (25), the specific count rate (per mass of element in the sample, or the so-called analytic sensitivity) is given by:…”

Section: Prompt Capture-γ γ γ γ Counting Ratementioning

confidence: 99%

Database of prompt gamma rays from slow neutron capture forelemental analysis

Firestone¹,

Choi²,

Lindstrom³

et al. 2004

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Section: Prompt Capture-γ γ γ γ Counting Ratementioning

confidence: 99%

Database of prompt gamma rays from slow neutron capture forelemental analysis

Firestone¹,

Choi²,

Lindstrom³

et al. 2004

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“…[15][16][17] The compounds of beryllium, magnesium, scandium, antimony, gallium, lead, thorium, and uranium were obtained commercially as being reagent grade.…”

Section: Methodsmentioning

confidence: 99%

“…[15][16][17] The Budapest Reactor is a water-cooled, water-moderated research reactor with a thermal power of 10 MW. A beam of lowenergy neutrons is transported for approximately 35 meters from the reactor core by a curved neutron guide fabricated from a glass coat with a nickel reflector.…”

Section: Pgaa Methodsmentioning

confidence: 99%

Analyses of oxyanion materials by prompt gamma activation analysis

Perry

English

Firestone

et al. 2007

J Radioanal Nucl Chem

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Prompt gamma activation analysis (PGAA) has been used to analyze metal ion oxyanion materials that have multiple applications, including medicine, materials, catalysts, and electronics. The significance for the need for accurate, highly sensitive analyses for the materials is discussed in the context of quality control of end products containing the parent element in each material. Applications of the analytical data for input to models and theoretical calculations related to the electronic and other properties of the materials are discussed. IntroductionElemental analyses for a wide array of elements in the Periodic Table are of extreme value for a wide range of purposes, including trying to gain a knowledge of materials failure when it occurs, modeling the electronic, magnetic, and chemical properties, and assessing and verifying quality control of the purity of the materials in which they are found. Both the elements and their compounds are useful for an extremely wide variety of applications in chemistry and materials science, including applications that are dependent on the elements' magnetic, electronic, and physical properties as well as their ability to form compounds and complexes. In obtaining precise analytical data for materials, the analyst may need a technique which will give really good, high-quality analytical data while preserving the integrity of the samples for archival purposes.The materials that have been analyzed in the present study represent an eclectic group of elements that are important from a wide number of standpoints. Additionally, in many cases, the counteranions associated with the central elements in the materials can be of extreme importance in the compound's role as synthetic precursors for other materials where the original materials or compounds have really good advantages as starting materials. Beryllium nitrate, for example, can be used as a starting material for the synthesis of beryllium oxide, 1 which is used in an extremely wide variety of applications ranging from sophisticated electronic materials 2 to dopants in gemstones 3 to dental materials. 4 It also represents, however, an element whose toxicity in humans 5,6 makes it extremely important as an analytical target due to many applications that impact both humans and the environment. Magnesium sulfate is widely used in medical and biomedical applications, 7 while scandium and its compounds (including the sulfate analyzed here) act as precursors in the synthesis of materials as well as serve as materials on their own. 8 Antimony is used in a wide variety of applications employing mixed elemental oxides, including catalysts, alloys, and magnetic materials. 9 Gallium is used for a wide assortment of electronic materials such as gallium arsenide, 10 many of which demand extremely high purity and quality control. Lead has applications in materials including powders, electronic devices, and ceramics 11 and also an extensive biochemistry and toxicology, 12 all areas of interest areas necessitating the ability to obtain de...

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“…An amount of 0.1135 g ammonium pertechnetate powder (supplied by Oak Ridge National Laboratory, USA) was sealed in a thin Teflon bag and placed in the guided cold neutron beam with a thermal-equivalent flux of 5 × 10 7 cm −2 s −1 . The in-beam spectrum was collected with our standard Compton-suppressed HPGe detector (25% efficiency) [5], placed at 23.5 cm from the target to keep the count rate sufficiently low and suppress coincidence summing. The relative efficiency was determined using radioactive sources and capture γ -rays as described elsewhere [6].…”

Section: Methodsmentioning

confidence: 99%

Partial and total thermal neutron capture cross sections for non-destructive assay and transmutation monitoring of ⁹⁹Tc

et al. 2002

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Thermal neutron capture / Gamma rays / Cold neutrons /Cross section / k 0 method / PGAA / NAA / Technetium 99 / Technetium 100 / Beta decay Summary. Accurate partial gamma-ray production cross sections were determined for the prompt and radioactive product decay gamma rays following cold neutron capture in 99 Tc. They can be used for non-destructive assay of technetium by prompt gamma activation analysis (PGAA) and neutron activation analysis (NAA), offering orders of magnitude higher analytical sensitivities than passive gamma-ray counting. A lower limit of 21.21 ± 0.17 b was also deduced for the thermal-neutron-capture cross section.

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The new prompt gamma-activation analysis facility at Budapest

Cited by 51 publications

References 11 publications

Database of prompt gamma rays from slow neutron capture forelemental analysis

Database of prompt gamma rays from slow neutron capture forelemental analysis

Analyses of oxyanion materials by prompt gamma activation analysis

Partial and total thermal neutron capture cross sections for non-destructive assay and transmutation monitoring of ⁹⁹Tc

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The new prompt gamma-activation analysis facility at Budapest

Cited by 51 publications

References 11 publications

Database of prompt gamma rays from slow neutron capture forelemental analysis

Database of prompt gamma rays from slow neutron capture forelemental analysis

Analyses of oxyanion materials by prompt gamma activation analysis

Partial and total thermal neutron capture cross sections for non-destructive assay and transmutation monitoring of 99Tc

Contact Info

Product

Resources

About

Partial and total thermal neutron capture cross sections for non-destructive assay and transmutation monitoring of ⁹⁹Tc