Abstract
A magnetic field measurement instrument for compact cyclotrons has been developed. Forty-eight Hall sensors are used for magnetic measurements, and a set of four Hall sensors is allocated to each channel. The magnetic field and the offset are tabulated with a permanent 4,500-G magnet. The measurement device is made to be thin, long, and rectangular, to overcome the narrow gap between upper and lower hills in a compact cyclotron (2 ∼ 3 cm). This instrument measures a magnetic field signal in the unit of Tesla and transforms it to a voltage signal as an output. The instrument has a 0.1-percent field-measurement stability margin and can be used to measure the magnetic field produced by a 9-MeV cyclotron magnet.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
J. Zhong, IEEE Trans. Appl. Supercond. 20, 2019 (2010).
J. S. Chai, Annual Technical Report of the Ministry of Education, Science and Technology, 2011.
K. H. Park, J. Korean Phys. Soc. 54, 1475 (2009).
S. H. Shin, J. Korean Phys. Soc. 45, 1045 (2004).
F. W. Bell, www.fwbell.com, 2011.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Lee, BN., Kim, HW., Oh, JH. et al. Development of a magnetic field measurement instrument for compact cyclotrons. Journal of the Korean Physical Society 61, 197–202 (2012). https://doi.org/10.3938/jkps.61.197
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.3938/jkps.61.197