Preliminary study on X-ray source from Plasma Focus device for fast radiography

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

Abstrakty

EN

Plasma derived flash X-ray sources may find potential applications in medicine and industry. Notwithstanding, as is the case of Plasma Focus (PF) devices, their characterisation in term of photon energy, temporal and spatial beam stability is far to be considered satisfactory. In this work, a radiographic approach, which avoids the effects caused by the intrinsic instability of the pinch output of a PF machine, is proposed and an attenuation curve can be attained even in presence of Xray emission instability. Using two radiographic films for each shot exposition symmetrically positioned and collimated to the pinch region the mean energy of the photons in the X-ray beam are evaluated. The X-ray emission symmetry from the pinch region was then utilised to control the validity of the proposed methodology.

Słowa kluczowe

EN

plasma focus; X-ray sources

• Wydawca: Institute of Nuclear Chemistry and Technology
• Czasopismo: Nukleonika
• Rocznik: 2001
• Tom: Vol. 46, suppl. 1
• Strony: 123--125
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

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]

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

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

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

Rapezzi L.

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

autor

Gribkov V. A.

• Institute of Plasma Physics and Laser Microfusion, Hery 23, P.O. Box 49, 00-908 Warsaw, Poland

Bibliografia

• 1. Berger MJ, Hubbal JH, (1997) Xcom photon cross section on a personal computer, NBSIR 87–3587. Institute of Standards and Technology, Gaithersburg, USA
• 2. Bortolotti A, Da Re A, Gambaccini M et al. (1998) Correlation of X-Ray and neutron yield in PF discharges. J Tech Phys 39:39–43
• 3. Dubrovsky AV, Silin PV, Gribkov VA, Volobuev IV (2000) DPF device application in the material characterization. Nukleonika 45;3:185–187
• 4. Gribkov VA (2000) On possible formulation of problems of a Dense Plasma Focus used in material sciences. Nukleonika 45;3:149–153
• 5. Ohzu A, Ito K, Matoba T, Kawanishi S, Arisawa T (1999) Instantaneous measurement system of the effective photon energy for a single shot x-ray pulse radiation. Review of Scientific Instruments 70;9:3776–3777
• 6. Taylor JR (1982) An introduction to error analysis. University Science Books, Herndon pp 141–151