Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system

Amar Prasad Gupta; Jinho Choi; Jaekyu Jang; Deokwon Seo; Mrinal Bhusal Sharma; Seung Jun Yeo; Jaeik Jung; Jeung Sun Ahn; Beom Seok Ko; Jehwang Ryu

doi:10.1117/12.2613549

Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system

Amar Prasad Gupta, Jinho Choi, Jaekyu Jang, Deokwon Seo, Mrinal Bhusal Sharma, Seung Jun Yeo, Jaeik Jung, Jeung Sun Ahn, Beom Seok Ko, Jehwang Ryu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Citation (Scopus)

Abstract

A fully commercialized intraoperative specimen radiographic system (IOSRS) based on carbon nanotube (CNT) emitter has been developed and the optimization of electron beam (E-beam) focusing characteristic of X-ray source is analyzed in this paper. The IOSRS can be used inside the operation theatre and helps reduce the surgery time during breast conserving surgery by confirming the extent of margin on specimen. For this, a highly focused X-ray source is required which depends on the focusing structure of Electron gun (E-gun). Normally, a separate focuser and grid are added in the filament X-ray tube to produce a narrow E-beam and perfectly digitalized X-ray pulses, respectively. However, in CNT based X-ray tubes, the focuser and grid can be integrated as one structure called self-focusing gate structure. The self-focusing gate structure can extract electrons and focus the E-beam producing perfect pulses of X-ray dose and simultaneously enhancing the spatial resolution quality of X-ray source. In this study, we have investigated the effect of changing the length of selffocusing gate structure on the spatial resolution capability of X-ray system and its effect on the field electron emission performance of CNT E-gun.

Original language	English
Title of host publication	Medical Imaging 2022
Subtitle of host publication	Physics of Medical Imaging
Editors	Wei Zhao, Lifeng Yu
Publisher	SPIE
ISBN (Electronic)	9781510649378
DOIs	https://doi.org/10.1117/12.2613549
Publication status	Published - 2022
Event	Medical Imaging 2022: Physics of Medical Imaging - Virtual, Online Duration: 21 Mar 2022 → 27 Mar 2022

Publication series

Name	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	12031
ISSN (Print)	1605-7422

Conference

Conference	Medical Imaging 2022: Physics of Medical Imaging
City	Virtual, Online
Period	21/03/22 → 27/03/22

Bibliographical note

Publisher Copyright:
© 2022 SPIE.

Keywords

CNT
Self-focusing gate
Specimen Imaging
X-ray source
pointed emitter

Access to Document

10.1117/12.2613549

Cite this

Gupta, A. P., Choi, J., Jang, J., Seo, D., Sharma, M. B., Yeo, S. J., Jung, J., Ahn, J. S., Ko, B. S., & Ryu, J. (2022). Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system. In W. Zhao, & L. Yu (Eds.), Medical Imaging 2022: Physics of Medical Imaging Article 120314F (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 12031). SPIE. https://doi.org/10.1117/12.2613549

@inproceedings{0d7bebbe24bc4c9fa310c78a4112f1c4,

title = "Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system",

abstract = "A fully commercialized intraoperative specimen radiographic system (IOSRS) based on carbon nanotube (CNT) emitter has been developed and the optimization of electron beam (E-beam) focusing characteristic of X-ray source is analyzed in this paper. The IOSRS can be used inside the operation theatre and helps reduce the surgery time during breast conserving surgery by confirming the extent of margin on specimen. For this, a highly focused X-ray source is required which depends on the focusing structure of Electron gun (E-gun). Normally, a separate focuser and grid are added in the filament X-ray tube to produce a narrow E-beam and perfectly digitalized X-ray pulses, respectively. However, in CNT based X-ray tubes, the focuser and grid can be integrated as one structure called self-focusing gate structure. The self-focusing gate structure can extract electrons and focus the E-beam producing perfect pulses of X-ray dose and simultaneously enhancing the spatial resolution quality of X-ray source. In this study, we have investigated the effect of changing the length of selffocusing gate structure on the spatial resolution capability of X-ray system and its effect on the field electron emission performance of CNT E-gun.",

keywords = "CNT, Self-focusing gate, Specimen Imaging, X-ray source, pointed emitter",

author = "Gupta, {Amar Prasad} and Jinho Choi and Jaekyu Jang and Deokwon Seo and Sharma, {Mrinal Bhusal} and Yeo, {Seung Jun} and Jaeik Jung and Ahn, {Jeung Sun} and Ko, {Beom Seok} and Jehwang Ryu",

note = "Publisher Copyright: {\textcopyright} 2022 SPIE.; Medical Imaging 2022: Physics of Medical Imaging ; Conference date: 21-03-2022 Through 27-03-2022",

year = "2022",

doi = "10.1117/12.2613549",

language = "English",

series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

publisher = "SPIE",

editor = "Wei Zhao and Lifeng Yu",

booktitle = "Medical Imaging 2022",

address = "United States",

}

Gupta, AP, Choi, J, Jang, J, Seo, D, Sharma, MB, Yeo, SJ, Jung, J, Ahn, JS, Ko, BS & Ryu, J 2022, Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system. in W Zhao & L Yu (eds), Medical Imaging 2022: Physics of Medical Imaging., 120314F, Progress in Biomedical Optics and Imaging - Proceedings of SPIE, vol. 12031, SPIE, Medical Imaging 2022: Physics of Medical Imaging, Virtual, Online, 21/03/22. https://doi.org/10.1117/12.2613549

Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system. / Gupta, Amar Prasad; Choi, Jinho; Jang, Jaekyu et al.
Medical Imaging 2022: Physics of Medical Imaging. ed. / Wei Zhao; Lifeng Yu. SPIE, 2022. 120314F (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 12031).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system

AU - Gupta, Amar Prasad

AU - Choi, Jinho

AU - Jang, Jaekyu

AU - Seo, Deokwon

AU - Sharma, Mrinal Bhusal

AU - Yeo, Seung Jun

AU - Jung, Jaeik

AU - Ahn, Jeung Sun

AU - Ko, Beom Seok

AU - Ryu, Jehwang

PY - 2022

Y1 - 2022

N2 - A fully commercialized intraoperative specimen radiographic system (IOSRS) based on carbon nanotube (CNT) emitter has been developed and the optimization of electron beam (E-beam) focusing characteristic of X-ray source is analyzed in this paper. The IOSRS can be used inside the operation theatre and helps reduce the surgery time during breast conserving surgery by confirming the extent of margin on specimen. For this, a highly focused X-ray source is required which depends on the focusing structure of Electron gun (E-gun). Normally, a separate focuser and grid are added in the filament X-ray tube to produce a narrow E-beam and perfectly digitalized X-ray pulses, respectively. However, in CNT based X-ray tubes, the focuser and grid can be integrated as one structure called self-focusing gate structure. The self-focusing gate structure can extract electrons and focus the E-beam producing perfect pulses of X-ray dose and simultaneously enhancing the spatial resolution quality of X-ray source. In this study, we have investigated the effect of changing the length of selffocusing gate structure on the spatial resolution capability of X-ray system and its effect on the field electron emission performance of CNT E-gun.

AB - A fully commercialized intraoperative specimen radiographic system (IOSRS) based on carbon nanotube (CNT) emitter has been developed and the optimization of electron beam (E-beam) focusing characteristic of X-ray source is analyzed in this paper. The IOSRS can be used inside the operation theatre and helps reduce the surgery time during breast conserving surgery by confirming the extent of margin on specimen. For this, a highly focused X-ray source is required which depends on the focusing structure of Electron gun (E-gun). Normally, a separate focuser and grid are added in the filament X-ray tube to produce a narrow E-beam and perfectly digitalized X-ray pulses, respectively. However, in CNT based X-ray tubes, the focuser and grid can be integrated as one structure called self-focusing gate structure. The self-focusing gate structure can extract electrons and focus the E-beam producing perfect pulses of X-ray dose and simultaneously enhancing the spatial resolution quality of X-ray source. In this study, we have investigated the effect of changing the length of selffocusing gate structure on the spatial resolution capability of X-ray system and its effect on the field electron emission performance of CNT E-gun.

KW - CNT

KW - Self-focusing gate

KW - Specimen Imaging

KW - X-ray source

KW - pointed emitter

UR - http://www.scopus.com/inward/record.url?scp=85131213735&partnerID=8YFLogxK

U2 - 10.1117/12.2613549

DO - 10.1117/12.2613549

M3 - Conference contribution

AN - SCOPUS:85131213735

T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

BT - Medical Imaging 2022

A2 - Zhao, Wei

A2 - Yu, Lifeng

PB - SPIE

T2 - Medical Imaging 2022: Physics of Medical Imaging

Y2 - 21 March 2022 through 27 March 2022

ER -

Effect of self-focusing gate structure length in CNT-based E-gun for intraoperative specimen radiographic system

Abstract

Publication series

Conference

Bibliographical note

Keywords

Access to Document

Other files and links

Fingerprint

Cite this