Development of 120 kV CNT-based digital x-ray tube for fluoroscopy

Gupta, Amar Prasad; Jang, Jaekyu; Park, Keunhwa; Lee, Hanna; Seo, Deokwon; Sharma, Mrinal Bhusal; Jung, Jaeik; Park, YoungKuk; Yeo, Seung Jun; Ahn, Jeung Sun; Ryu, Jehwang

doi:10.1117/12.2613554

Cited by 5 publications

(4 citation statements)

References 6 publications

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“…Additionally, due to difficulties with immediate switching or current modulation, their applicability within systems is limited. Moreover, the generation of unnecessary doses increases the risk of radiation exposure to operators [7]. To overcome these analog limitations, a new digital X-ray source equipped with instantaneous power control capabilities is essential.…”

Section: Introductionmentioning

confidence: 99%

Reliability evaluation of a digital pulse-driven 160kV carbon nanotube-based x-ray source for cell irradiation

Lee,

Choi,

Sharma

et al. 2024

Medical Imaging 2024: Physics of Medical Imaging

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We have designed a 160 kV radiation source based on carbon nanotubes (CNT) capable of irradiating cells. The functionality of the designed system was verified by assessing the physical and chemical properties of directly synthesized CNT and the resulting X-ray dosage emitted.The conventional X-ray source widely used until now employs an analog method that generates thermal electrons through filament heating. To overcome the limitations of this existing analog method, a novel digital X-ray tube capable of instantaneously controlling power became essential. Taking these aspects into consideration, our study developed a 160kV X-ray source based on CNT, enabling digital control of X-ray energy and dosage. We anticipate that our developed source can find applications in the field of cell therapy in the future.

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Section: Introductionmentioning

confidence: 99%

Reliability evaluation of a digital pulse-driven 160kV carbon nanotube-based x-ray source for cell irradiation

Lee,

Choi,

Sharma

et al. 2024

Medical Imaging 2024: Physics of Medical Imaging

Self Cite

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“…The size of the X-ray tube was one of the most important parameters addressed during the construction of the X-ray system. If the X-ray tube is smaller, the X-ray monolbock or tube head may be constructed more compactly, which directly effects the mobility, size, and weight of the X-ray system [2].…”

Section: Introductionmentioning

confidence: 99%

A portable x-ray source based on CNT for chest radiography

Gupta

Jang²,

Jung³

et al. 2023

Medical Imaging 2023: Physics of Medical Imaging

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“…This system emits electrons by field emission using CNT-based cold cathode. Therefore, it has the advantage of being able to operate in milliseconds with a response quickly even at MHz frequencies and does not emit unnecessary dose [5]. In addition, the advantage of being able to operate in pulse mode is that the life of the source is relatively longer than that of thermionic cathode as voltage is not continuously applied to the source [6].…”

Section: Introductionmentioning

confidence: 99%

Development of reflective type digital cell irradiation system based on carbon nanotube for biological research of low-dose radiation

Lee

Choi

Gupta

et al. 2023

Medical Imaging 2023: Physics of Medical Imaging

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We designed and developed a carbon nanotube (CNT)-based reflective digital cell irradiation system capable of irradiating cells. The chemical and physical properties of the CNT synthesized directly on the patterned substrate were confirmed, and the field emission characteristics with a maximum anode current of 10 mA were evaluated through the I-V curve. Also, electrostatic simulation was conducted to confirm the electric field distribution and the electron beam trajectory. According to the duty (27.3 mGy at anode on time 10 sec, duty 50 %), the anode voltage (25.2 mGy at anode on time 10 sec, duty 50 %, anode voltage 40 kV) and the distance between the window and the cell stage (anode on time 10 sec, duty 50%, anode voltage 40 kV, 19.4 mGy), the function of the system was verified by obtaining the dose emitted from the system. This study confirmed that it is suitable as the cell irradiation system for studying the radiobiological effects of low-dose radiation-irradiated cells.

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Development of 120 kV CNT-based digital x-ray tube for fluoroscopy

Cited by 5 publications

References 6 publications

Reliability evaluation of a digital pulse-driven 160kV carbon nanotube-based x-ray source for cell irradiation

Reliability evaluation of a digital pulse-driven 160kV carbon nanotube-based x-ray source for cell irradiation

A portable x-ray source based on CNT for chest radiography

Development of reflective type digital cell irradiation system based on carbon nanotube for biological research of low-dose radiation

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