Development of high-homogeneity magnetic field coil for 129Xe EDM experiment

Y. Sakamoto, C. P. Bidinosti, Y. Ichikawa, T. Sato, Y. Ohtomo, S. Kojima, C. Funayama, T. Suzuki, M. Tsuchiya, T. Furukawa, Akihiro Yoshimi, T. Ino, H. Ueno, Y. Matsuo, T. Fukuyama, K. Asahi

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We search for 129Xe EDM by using an active nuclear spin maser. In this experiment, the amplitude of the maser oscillation signal is one of the most important parameters that eventually determine the frequency precision. The amplitude is proportional to the ratio of the transverse spin relaxation time T2 to the effective longitudinal spin relaxation time (Formula presented.). In particular, for a spin maser of 3He (a co-magnetometer) for which (Formula presented.) typically reaches ∼50 h, a long T2 is needed. T2 depends on the homogeneity of the magnetic field which is applied with coils in order to keep the spins under precession. In the present report, we discuss on the design and construction of a new coil which provided a root-mean square (rms) field gradient of less than 5.0 μG/cm. The result of the field measurement has shown that the field gradient in the cell fulfills the target condition (Formula presented.), and in fact T2 of 3He has been measured to be as long as 11,000 s.

Original languageEnglish
Pages (from-to)141-146
Number of pages6
JournalHyperfine Interactions
Volume230
Issue number1-3
DOIs
Publication statusPublished - Apr 1 2015

Fingerprint

Masers
field coils
homogeneity
masers
Magnetic fields
Relaxation time
magnetic fields
coils
relaxation time
Experiments
Magnetometers
gradients
precession
nuclear spin
magnetometers
oscillations
cells

Keywords

  • EDM
  • Magnetic coil
  • Spin maser

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

Cite this

Sakamoto, Y., Bidinosti, C. P., Ichikawa, Y., Sato, T., Ohtomo, Y., Kojima, S., ... Asahi, K. (2015). Development of high-homogeneity magnetic field coil for 129Xe EDM experiment. Hyperfine Interactions, 230(1-3), 141-146. https://doi.org/10.1007/s10751-014-1109-5

Development of high-homogeneity magnetic field coil for 129Xe EDM experiment. / Sakamoto, Y.; Bidinosti, C. P.; Ichikawa, Y.; Sato, T.; Ohtomo, Y.; Kojima, S.; Funayama, C.; Suzuki, T.; Tsuchiya, M.; Furukawa, T.; Yoshimi, Akihiro; Ino, T.; Ueno, H.; Matsuo, Y.; Fukuyama, T.; Asahi, K.

In: Hyperfine Interactions, Vol. 230, No. 1-3, 01.04.2015, p. 141-146.

Research output: Contribution to journalArticle

Sakamoto, Y, Bidinosti, CP, Ichikawa, Y, Sato, T, Ohtomo, Y, Kojima, S, Funayama, C, Suzuki, T, Tsuchiya, M, Furukawa, T, Yoshimi, A, Ino, T, Ueno, H, Matsuo, Y, Fukuyama, T & Asahi, K 2015, 'Development of high-homogeneity magnetic field coil for 129Xe EDM experiment', Hyperfine Interactions, vol. 230, no. 1-3, pp. 141-146. https://doi.org/10.1007/s10751-014-1109-5
Sakamoto Y, Bidinosti CP, Ichikawa Y, Sato T, Ohtomo Y, Kojima S et al. Development of high-homogeneity magnetic field coil for 129Xe EDM experiment. Hyperfine Interactions. 2015 Apr 1;230(1-3):141-146. https://doi.org/10.1007/s10751-014-1109-5
Sakamoto, Y. ; Bidinosti, C. P. ; Ichikawa, Y. ; Sato, T. ; Ohtomo, Y. ; Kojima, S. ; Funayama, C. ; Suzuki, T. ; Tsuchiya, M. ; Furukawa, T. ; Yoshimi, Akihiro ; Ino, T. ; Ueno, H. ; Matsuo, Y. ; Fukuyama, T. ; Asahi, K. / Development of high-homogeneity magnetic field coil for 129Xe EDM experiment. In: Hyperfine Interactions. 2015 ; Vol. 230, No. 1-3. pp. 141-146.
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