Optimal design and fabrication of a RF cavity for accelerator mass spectrometry system cyclotron

Donghyup Ha; Hoseung Song; Mitra Ghergherehchi; Hyojeong Choi; Seung wook Shin; Jongchul Lee; Ho Namgoong; Mustafa Mumyapan; Jong Seo Chai

doi:10.1007/s40042-023-00731-y

Optimal design and fabrication of a RF cavity for accelerator mass spectrometry system cyclotron

Donghyup Ha, Hoseung Song, Mitra Ghergherehchi, Hyojeong Choi, Seung wook Shin, Jongchul Lee, Ho Namgoong, Mustafa Mumyapan, Jong Seo Chai

Department of Electronic and Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

This study designed a radio frequency (RF) cavity for a cyclotron-based accelerator mass spectrometry (AMS) system. A cyclotron-based AMS system was used to accelerate ¹²C⁻, ¹³C⁻, and ¹⁴C⁻ particles. The experiment results confirmed that three resonant frequencies of the designed RF cavity accelerated the three particles. The RF cavity was a quarter-wavelength resonator (QWR) type and had an external inductor–capacitor (LC) circuit. The operating frequency range of the fabricated RF cavity was 8.5–10 MHz with coupling coefficients of 0.86, 0.99, and 1.11 at resonant frequencies of 8.85, 9.17, and 9.52 MHz, respectively. The reflected power at each frequency was less than 1%.

Original language	English
Pages (from-to)	731-739
Number of pages	9
Journal	Journal of the Korean Physical Society
Volume	82
Issue number	8
DOIs	https://doi.org/10.1007/s40042-023-00731-y
State	Published - Apr 2023

Keywords

Accelerator mass spectrometry
Coupling coefficient
Cyclotron
Resonant frequency
RF cavity

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10.1007/s40042-023-00731-y

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title = "Optimal design and fabrication of a RF cavity for accelerator mass spectrometry system cyclotron",

abstract = "This study designed a radio frequency (RF) cavity for a cyclotron-based accelerator mass spectrometry (AMS) system. A cyclotron-based AMS system was used to accelerate 12C−, 13C−, and 14C− particles. The experiment results confirmed that three resonant frequencies of the designed RF cavity accelerated the three particles. The RF cavity was a quarter-wavelength resonator (QWR) type and had an external inductor–capacitor (LC) circuit. The operating frequency range of the fabricated RF cavity was 8.5–10 MHz with coupling coefficients of 0.86, 0.99, and 1.11 at resonant frequencies of 8.85, 9.17, and 9.52 MHz, respectively. The reflected power at each frequency was less than 1\%.",

keywords = "Accelerator mass spectrometry, Coupling coefficient, Cyclotron, Resonant frequency, RF cavity",

author = "Donghyup Ha and Hoseung Song and Mitra Ghergherehchi and Hyojeong Choi and Shin, \{Seung wook\} and Jongchul Lee and Ho Namgoong and Mustafa Mumyapan and Chai, \{Jong Seo\}",

note = "Publisher Copyright: {\textcopyright} 2023, The Korean Physical Society.",

year = "2023",

month = apr,

doi = "10.1007/s40042-023-00731-y",

language = "English",

volume = "82",

pages = "731--739",

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TY - JOUR

T1 - Optimal design and fabrication of a RF cavity for accelerator mass spectrometry system cyclotron

AU - Ha, Donghyup

AU - Song, Hoseung

AU - Ghergherehchi, Mitra

AU - Choi, Hyojeong

AU - Shin, Seung wook

AU - Lee, Jongchul

AU - Namgoong, Ho

AU - Mumyapan, Mustafa

AU - Chai, Jong Seo

PY - 2023/4

Y1 - 2023/4

N2 - This study designed a radio frequency (RF) cavity for a cyclotron-based accelerator mass spectrometry (AMS) system. A cyclotron-based AMS system was used to accelerate 12C−, 13C−, and 14C− particles. The experiment results confirmed that three resonant frequencies of the designed RF cavity accelerated the three particles. The RF cavity was a quarter-wavelength resonator (QWR) type and had an external inductor–capacitor (LC) circuit. The operating frequency range of the fabricated RF cavity was 8.5–10 MHz with coupling coefficients of 0.86, 0.99, and 1.11 at resonant frequencies of 8.85, 9.17, and 9.52 MHz, respectively. The reflected power at each frequency was less than 1%.

AB - This study designed a radio frequency (RF) cavity for a cyclotron-based accelerator mass spectrometry (AMS) system. A cyclotron-based AMS system was used to accelerate 12C−, 13C−, and 14C− particles. The experiment results confirmed that three resonant frequencies of the designed RF cavity accelerated the three particles. The RF cavity was a quarter-wavelength resonator (QWR) type and had an external inductor–capacitor (LC) circuit. The operating frequency range of the fabricated RF cavity was 8.5–10 MHz with coupling coefficients of 0.86, 0.99, and 1.11 at resonant frequencies of 8.85, 9.17, and 9.52 MHz, respectively. The reflected power at each frequency was less than 1%.

KW - Accelerator mass spectrometry

KW - Coupling coefficient

KW - Cyclotron

KW - Resonant frequency

KW - RF cavity

UR - https://www.scopus.com/pages/publications/85150646636

U2 - 10.1007/s40042-023-00731-y

DO - 10.1007/s40042-023-00731-y

M3 - Article

AN - SCOPUS:85150646636

SN - 0374-4884

VL - 82

SP - 731

EP - 739

JO - Journal of the Korean Physical Society

JF - Journal of the Korean Physical Society

IS - 8

ER -

Optimal design and fabrication of a RF cavity for accelerator mass spectrometry system cyclotron

Abstract

Keywords

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