Assembling x-ray sources by carbon nanotubes

被引：1

作者：

Sessa, V. ^{[1
]}

Lucci, M. ^{[1
]}

Toschi, F. ^{[1
]}

Orlanducci, S. ^{[1
]}

Tamburri, E. ^{[1
]}

Terranova, A. L. ^{[1
]}

Ciorba, A. ^{[1
]}

Rossi, M. ^{[1
]}

Hampai, D. ^{[1
]}

Cappuccio, G. ^{[1
]}

机构：

[1] Univ Roma Tor Vergata, Dip Sci & Tecnol Chim, MINAS, I-00133 Rome, Italy

来源：

NANOTECHNOLOGY III | 2007年 / 6591卷

关键词：

carbon nanotubes; X-ray sources; field emission;

D O I：

10.1117/12.721961

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 SWNT-coated 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).

引用

页数：8

共 13 条

[1] Simulation of field-emission triode using carbon nanotube emitters [J].

Chang, Won Suk ;

Choi, Hae Young ;

Kim, Jong Uk .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2006, 45 (9A) :7175-7180

[2] Acquisition of X-ray images by using a CNT cold emitter [J].

Choi, H. Y. ;

Chang, W. S. ;

Kim, H. S. ;

Park, Y. H. ;

Kim, J. U. .

PHYSICS LETTERS A, 2006, 357 (01) :36-41

[3] Carbon nanotube electron sources and applications [J].

de Jonge, N ;

Bonard, JM .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 2004, 362 (1823) :2239-2266

[4] A miniature x-ray tube [J].

Haga, A ;

Senda, S ;

Sakai, Y ;

Mizuta, Y ;

Kita, S ;

Okuyama, F .

APPLIED PHYSICS LETTERS, 2004, 84 (12) :2208-2210

[5] Aligned arrays of carbon nanotubes: modulation of orientation and selected-area growth [J].

Orlanducci, S ;

Sessa, V ;

Terranova, ML ;

Rossi, M ;

Manno, D .

CHEMICAL PHYSICS LETTERS, 2003, 367 (1-2) :109-115

[6] Super-miniature x-ray tube [J].

Senda, S ;

Sakai, Y ;

Mizuta, Y ;

Kita, S ;

Okuyama, F .

APPLIED PHYSICS LETTERS, 2004, 85 (23) :5679-5681

[7] New field-emission x-ray radiography system [J].

Senda, S ;

Tanemura, M ;

Sakai, Y ;

Ichikawa, Y ;

Kita, S ;

Otsuka, T ;

Haga, A ;

Okuyama, F .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2004, 75 (05) :1366-1368

[8] Carbon nanotubes as electron source in an x-ray tube [J].

Sugie, H ;

Tanemura, M ;

Filip, V ;

Iwata, K ;

Takahashi, K ;

Okuyama, F .

APPLIED PHYSICS LETTERS, 2001, 78 (17) :2578-2580

[9] Compact glow discharge x-ray tube [J].

Tsuji, K ;

Wagatsuma, K .

REVIEW OF SCIENTIFIC INSTRUMENTS, 1998, 69 (11) :4006-4007

[10] Single-walled carbon nanotubes on tungsten wires: A new class of microelectrochemical sensors [J].

Valentini, E ;

Orlanducci, S ;

Tamburri, E ;

Terranova, ML ;

Curulli, A ;

Palleschi, G .

ELECTROANALYSIS, 2005, 17 (01) :28-37

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