By the use of a chemical vapour deposition technique a series of metal wires (W, Ta, Steel ) with differently shaped tips have been coated by arrays of single wall carbon nanotubes (SWNT). The field emission properties of the SWNT deposits have been measured by a home made apparatus working in medium vacuum (10-6- 10-7 mbar) and the SWNTcoated wires have been used to fabricate tiny electron sources for X-ray tubes. To check the efficiency of the nanotube coated wires for X-ray generation has, a prototype X-ray tube has been designed and fabricated. The X-ray tube works at pressures about 10-6 mbar. The target ( Al film) is disposed on a hole in the stainless steel sheath: this configuration makes unnecessary the usual Be window and moreover allows us to use low accelerating potentials (< 6 kV).

Sessa, V., Lucci, M., Toschi, F., Orlanducci, S., Tamburri, E., Terranova Persichelli, M., et al. (2007). Assembling X-ray sources by carbon nanotubes. In Nanotechnology III: microtechnologies for the new Millenium. SPIE [10.1117/12.721961].

Assembling X-ray sources by carbon nanotubes

Sessa,V;Lucci, M;Toschi, F;Orlanducci, S;Tamburri, E;Terranova Persichelli, ML;
2007

Abstract

By the use of a chemical vapour deposition technique a series of metal wires (W, Ta, Steel ) with differently shaped tips have been coated by arrays of single wall carbon nanotubes (SWNT). The field emission properties of the SWNT deposits have been measured by a home made apparatus working in medium vacuum (10-6- 10-7 mbar) and the SWNTcoated wires have been used to fabricate tiny electron sources for X-ray tubes. To check the efficiency of the nanotube coated wires for X-ray generation has, a prototype X-ray tube has been designed and fabricated. The X-ray tube works at pressures about 10-6 mbar. The target ( Al film) is disposed on a hole in the stainless steel sheath: this configuration makes unnecessary the usual Be window and moreover allows us to use low accelerating potentials (< 6 kV).
SPIE-Nanotechnoloy III
Maspalomas, Gran Canaria (Spain)
2007
3.
SPIE: The International Society for Optical Engineering
Rilevanza internazionale
contributo
2007
Settore CHIM/03 - Chimica Generale e Inorganica
English
carbon nanotubes; X-Ray sources; field emission
https://www.spiedigitallibrary.org/conference-proceedings-of-spie/6591/1/Assembling-x-ray-sources-by-carbon-nanotubes/10.1117/12.721961.short
Intervento a convegno
Sessa, V., Lucci, M., Toschi, F., Orlanducci, S., Tamburri, E., Terranova Persichelli, M., et al. (2007). Assembling X-ray sources by carbon nanotubes. In Nanotechnology III: microtechnologies for the new Millenium. SPIE [10.1117/12.721961].
Sessa, V; Lucci, M; Toschi, F; Orlanducci, S; Tamburri, E; Terranova Persichelli, M; Ciorba, A; Rossi, M; Hampai, D; Cappuccio, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/17555
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