Multi beam X-ray tube with the field emitter on the base of nanocrystalline graphite for computer tomography

Guzilov, I. A.; Kuzmich, K.V.; Maslennikov, O.Yu.; Smirnova, E.V.; Minakov, P. V.; Poroykov, A. Yu.; Rakhimov, A. T.; Seleznev, B.V.; Sen, V. D.

doi:10.1109/ivelec.2009.5193411

Cited by 3 publications

(5 citation statements)

References 2 publications

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“…The resulting tomography sections allow the reconstruction of images in two and three dimensions. As part of ct software development, automatic 3D reconstruction is becoming faster and more efficient [8,7,20].…”

Section: Fig 2 X-rays Propagationmentioning

confidence: 99%

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Overview of the Use of X-Ray Equipment in Electronics Quality Tests

Michalska¹

2021

IAPGOS

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Surface-mount technology is now widely used in the production of many components. The development of the miniaturised electronics industry forces the development of increasingly accurate inspection methods. X-ray and computed tomography are methods to accurately assess the quality of a circuit board. The article discusses the basics of image formation of the tested electronics, the development of the design of the devices used and examples of x-ray, computed tomography applications.

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Section: Fig 2 X-rays Propagationmentioning

confidence: 99%

“…Individually addressed electron beams allow you to control the shape of the X-ray beam. Multipixel sources [8,29] used in CT have a number of advantages. These include: higher spatial resolution and subsequent formation of the radiation beam.…”

Section: Industry Systems Based On Ctmentioning

confidence: 99%

Overview of the Use of X-Ray Equipment in Electronics Quality Tests

Michalska¹

2021

IAPGOS

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“…Such a system is highly manufacturable [239], however; the inspection technique relies on close alignment of the generators and detectors which is likely challenging. Guzilov et al [240] proposed circular arrays of FE emitters to emulate the classical rotary gantries used for CT, although their practical implementation has been limited to staggered linear arrays. Two dimensional arrays have a number of advantages over their linear counterparts, chief amongst which is the potential for ad hoc beam shaping of the emergent X-rays.…”

Section: Multi-pixel Sourcesmentioning

confidence: 99%

X-ray generation using carbon nanotubes

et al. 2015

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Since the discovery of X-rays over a century ago the techniques applied to the engineering of X-ray sources have remained relatively unchanged. From the inception of thermionic electron sources, which, due to simplicity of fabrication, remain central to almost all X-ray applications, there have been few fundamental technological advances. However, with the emergence of ever more demanding medical and inspection techniques, including computed tomography and tomosynthesis, security inspection, high throughput manufacturing and radiotherapy, has resulted in a considerable level of interest in the development of new fabrication methods. The use of conventional thermionic sources is limited by their slow temporal response and large physical size. In response, field electron emission has emerged as a promising alternative means of deriving a highly controllable electron beam of a well-defined distribution. When coupled to the burgeoning field of nanomaterials, and in particular, carbon nanotubes, such systems present a unique technological opportunity. This review provides a summary of the current state-of-the-art in carbon nanotube-based field emission X-ray sources. We detail the various fabrication techniques and functional advantages associated with their use, including the ability to produce ever smaller electron beam assembles, shaped cathodes, enhanced temporal stability and emergent fast-switching pulsed sources. We conclude with an overview of some of the commercial progress made towards the realisation of an innovative and disruptive technology.

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“…Известно, что катоды с управляемой эмиссией находят применение не только в СВЧ-электронике (см., например, [3]). В частности, автоэмиссионные катоды используют и в рентгеновских трубках [57][58][59][60][61][62][63][64][65]. Компания «Oxford Instruments» производит катоды с углеродными волокнами для компактных рентгеновских источников (30 кВ, 16.4 см 3 ) [60].…”

Section: вместо заключенияunclassified

“…Разработана многолучевая рентгеновская трубка на основе полевой эмиссии [63], которая работает при анодном напряжении 140 кВ. лампы [64,65] В [64,65] представлена рентгеновская лампа, в конструкцию которой входят катод, сетка, два фокусирующих электрода и анод (пентод).…”

Section: вместо заключенияunclassified

О Современном Состоянии Сверхвысокочастотных Вакуумных Электронных И Микроэлектронных Приборов С Управляемой Эмиссией

2013

AND

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В работе коротко изложены некоторые результаты исследований и разработок приборов с управляемой эмиссией (ЛБВ, ЛОВ, карсинотрод, клистроны, а также рентгеновские лампы, полевые эмиссионные дисплеи и др.), которые проводились в течение последних двух десятилетий. Обозначен ряд направлений развития теории приборов с модуляцией эмиссии на поверхности катода. Также рассмотрены созданные в Европе и США программы по вакуумной СВЧ-электронике, направленные на использование новых технологий при освоении терагерцового диапазона и отражающие тенденции последних лет.

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Multi beam X-ray tube with the field emitter on the base of nanocrystalline graphite for computer tomography

Cited by 3 publications

References 2 publications

Overview of the Use of X-Ray Equipment in Electronics Quality Tests

Overview of the Use of X-Ray Equipment in Electronics Quality Tests

X-ray generation using carbon nanotubes

О Современном Состоянии Сверхвысокочастотных Вакуумных Электронных И Микроэлектронных Приборов С Управляемой Эмиссией

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