An internal standard for Fast Neutron Activation Analysis spectra obtained by means of Plasma Focus devices

• Autorzy: Verri G. , Tartari A. , Rapezzi L. , Mezzetti F. , Gribkov V. A. , Da Re A.
• Konferencja: International Workshop on Dense Magnetised Plasmas IWDMP’2000 (12-14.10.2000 ; Kudowa Zdrój, Poland)
• Języki publikacji: EN

Abstrakty

EN

The behaviour of Pb activation peaks, which appear in an X-ray spectrum of Fast Neutron Activation Analysis (FNAA) performed by means of a Plasma Focus (PF) neutron source and an NaI scintillator counter, has been studied. The PF device generates neutron bursts of different intensities. To know the exact neutron flux illuminating a sample during PF discharges an external neutron counter is usually used. The nature and behaviour of the indicated peaks suggest that one could use one of them as an internal standard for neutron production measurement instead of an external counter. This technique allows more reliable and accurate determinations of the presence of various elements.

Słowa kluczowe

EN

gold; inelastic scattering; lead; mineral resources; NAA; plasma focus

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2001
• Tom: Vol. 46, suppl. 1
• Strony: 103--105
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Verri G.

• Dipartimento di Fisica dell’Universit∫ di Ferrara and Istituto Nazionale di Fisica della Materia (INFM), Via del Paradiso 12, 44100 Ferrara, Italy, Tel.: [phone], Fax: [phone]

autor

Tartari A.

• Dipartimento di Fisica dell’Universit∫ di Ferrara and Istituto Nazionale di Fisica della Materia (INFM), Via del Paradiso 12, 44100 Ferrara, Italy, Tel.: [phone], Fax: [phone]

autor

Rapezzi L.

• Ente per le Nuove Tecnologie, l’Energia e l’Ambiente (ENEA), C.R. Brasimone, 40032 Camugnano, Bologna, Italy

autor

Mezzetti F.

• Dipartimento di Fisica dell’Universit∫ di Ferrara and Istituto Nazionale di Fisica della Materia (INFM), Via del Paradiso 12, 44100 Ferrara, Italy, Tel.: [phone], Fax: [phone]

autor

Gribkov V. A.

• P.N. Lebedev Physical Institute, Russian Academy of Sciences, Leninsky pr. 53, 117924 Moscow, Russia

autor

Da Re A.

• Dipartimento di Fisica dell’Universit∫ di Ferrara and Istituto Nazionale di Fisica della Materia (INFM), Via del Paradiso 12, 44100 Ferrara, Italy, Tel.: [phone], Fax: [phone]

Bibliografia

• 1. Brzosko JS (1983) Investigation of high-energy deuterons in a dense plasma focus device by means of neutron emitted in the 7Li+D process. Nucl Technol, Fusion 5:209–223
• 2. Campbell EC (1956) Rapid ion-exchangee techniques for radiochemical separations. J Inorg Nucl Chem 3:233–238
• 3. Clayton CG, Wormald MR, Schweizer JS (1990) Nuclear method for on-line analysis of metalliferous and non-metalliferous minerals. In: Proc Nuclear Techniques in the Exploration and Exploitation of Energy and Mineral Resources. IAEA, Vienna, pp 107–134
• 4. Ruby L, Rechen JB (1962) A fast-neutron activation detector for 14 MeV pulsed neutron source. Nucl Instrum Meth 15:74–76
• 5. Salaita GN (1973) Isomeric cross section for (n,2n) reactions in Tl, Pb, and Bi, at 14.8 MeV. J Inorg Nucl Chem 35:2139–2143
• 6. Spencer LE, Jacobs EL (1964) The lead activation technique for high energy neutron measurement. IEEE Trans Nucl Sci, NS 12:407–414
• 7. Verri G, Mezzetti F, Da Re A, Bortolotti A, Rapezzi L, Gribkov VA (2000) Fast neutron activation analysis of gold by inelastic scattering, 197Au(n,n’γ)197Aum, by means of plasma focus device. Nukleonika 45;3:189–191