$\boldsymbol{\pi}$/n rad magnetic sector

synonym: 180º/n magnetic sector
https://doi.org/10.1351/goldbook.12526
Arrangement in which an ion beam is deflected magnetically through \(\pi/n\ \rm{rad}\), where \(n \gt 1\).
Source:
PAC, 2013, 85, 1515. (Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)) on page 1577 [Terms] [Paper]