### Abstract

We examine the characteristics of the π/2 pulse for simultaneously rotating two spin species of different gyromagnetic ratios with the same sign. For a π/2 pulse using a rotating magnetic field, we derive an equation relating the frequency and strength of the pulse to the gyromagnetic ratios of the two particles and the strength of the constant holding field. For a π/2 pulse using a linear oscillatory magnetic field, we obtain the solutions numerically, and compare them with the solutions for the rotating π/2 pulse. Application of this analysis to the specific case of rotating neutrons and ^{3}He atoms simultaneously with a π/2 pulse, proposed for a neutron electric dipole moment experiment, is also presented.

Original language | English (US) |
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Pages (from-to) | 128-131 |

Number of pages | 4 |

Journal | Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment |

Volume | 795 |

DOIs | |

State | Published - Jun 15 2015 |

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### Keywords

- Magnetic resonance
- Neutron electric dipole moment
- π/2 Rotation

### ASJC Scopus subject areas

- Nuclear and High Energy Physics
- Instrumentation