Two applications of carbon nanotube paste emitters: nano-focus, and high-flux vacuum-sealed x-ray tubes

被引：0

作者：

Jeong, Jin-Woo ^{[1
]}

Kang, Jun-Tae ^{[1
]}

Park, Sora ^{[1
]}

Kim, Jae-Woo ^{[1
]}

Yun, Ki Nam ^{[1
]}

Go, Eunsol ^{[1
,2
]}

Lee, Jeong-Woong ^{[1
,2
]}

Jeon, Hyojin ^{[1
,2
]}

Ahn, Yujung ^{[1
,2
]}

Yeon, Ji-Hwan ^{[1
]}

Kim, Sunghee ^{[1
]}

Song, Yoon-Ho ^{[1
,2
]}

Go, Eunsol ^{[1
,2
]}

Lee, Jeong-Woong ^{[1
,2
]}

Jeon, Hyojin ^{[1
,2
]}

Ahn, Yujung ^{[1
,2
]}

Song, Yoon-Ho ^{[1
,2
]}

机构：

[1] Elect & Telecommun Res Inst, Emerging Devices Res Grp, Daejeon, South Korea

[2] UST, Sch ICT Adv Device Technol, Daejeon, South Korea

来源：

2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) | 2018年

关键词：

carbon nanotube; field emission; x-ray tube; non-destructive testing; cone-beam breast computed tomography;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The printed carbon nanotube (CNT) paste emitters were applied to two types of vacuum-sealed x-ray tubes for several hundred-nanometer-resolution non-destructive testing (NDT) and cone-beam breast computed tomography (CB-BCT) applications. A single dot CNT emitter of 200 micrometer in diameter was made for a small focal spot size of NDT imaging meanwhile a 983-dots array was for a high current of CB-BCT imaging. The electron beam emitted from the single dot emitter in the nano-focus x-ray tube is strongly focused to a small focal spot size of 1 micrometer or less in diameter by help of electrostatic and magnetic focusing lenses, and the 983 emitters produce a large field emission current over 200 mA with a moderate focal spot, tentatively applicable to CB-BCT imaging. The printed CNT emitters can be used for a variety of electron sources from several hundred-nanometer focusing to high-flux x-ray tubes.

引用

页数：2

共 28 条

[21] Improvement of anode characteristics of sharp-focus Coolidge X-ray tubes by changing from high to low vacuum
Kanikovsky V.B.
Biomedical Engineering, 2002, 36 (5) : 246 - 250
[22] High-Performance Cold Cathode X-ray Tubes Using a Carbon Nanotube Field Electron Emitter
Han, Jun Soo
Lee, Sang Heon
Go, Hanbin
Kim, Soo Jin
Noh, Jun Hong
Lee, Cheol Jin
ACS NANO, 2022, : 10231 - 10241
[23] High-Performance Cold Cathode X-ray Tubes Using a Carbon Nanotube Field Electron Emitter
Han, Jun Soo
Lee, Sang Heon
Go, Hanbin
Kim, Soo Jin
Noh, Jun Hong
Lee, Cheol Jin
ACS Nano, 2022, 16 (07) : 10231 - 10241
[24] Fabrication of a compact glass-sealed x-ray tube with carbon nanotube cold cathode for high-resolution imaging
Hong, Ji Hwan
Kang, Jung Su
Park, Kyu Chang
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 2018, 36 (02):
[25] Carbon Nanotube Field Emitters Synthesized on Metal Alloy Substrate by PECVD for Customized Compact Field Emission Devices to Be Used in X-Ray Source Applications
Park, Sangjun
Gupta, Amar Prasad
Yeo, Seung Jun
Jung, Jaeik
Paik, Sang Hyun
Mativenga, Mallory
Kim, Seung Hoon
Shin, Ji Hoon
Ahn, Jeung Sun
Ryu, Jehwang
NANOMATERIALS, 2018, 8 (06):
[26] Ultra-short, high-dose rate digital x-ray tube based on carbon nanotube emitters for advanced cone-beam breast computed tomography
Kang, Jun-Tae
Jeong, Jin-Woo
Park, Sora
Kim, Jae-Woo
Yun, Ki Nam
Go, Eunsol
Lee, Jeong-Woong
Jeon, Hyojin
Ahn, Yujung
Yeon, Ji-Hwan
Kim, Sunghee
Song, Yoon-Ho
MEDICAL IMAGING 2019: PHYSICS OF MEDICAL IMAGING, 2019, 10948
[27] Generation of sub-two-cycle millijoule infrared pulses in an optical parametric chirped-pulse amplifier and their application to soft x-ray absorption spectroscopy with high-flux high harmonics
Ishii, Nobuhisa
Kaneshima, Keisuke
Kanai, Teruto
Watanabe, Shuntaro
Itatani, Jiro
JOURNAL OF OPTICS, 2018, 20 (01)
[28] High-flux table-top soft x-ray source driven by sub-2-cycle, CEP stable, 1.85-μm 1-kHz pulses for carbon K-edge spectroscopy
Cousin, S. L.
Silva, F.
Teichmann, S.
Hemmer, M.
Buades, B.
Biegert, J.
OPTICS LETTERS, 2014, 39 (18) : 5383 - 5386

← 1 2 3 →