IBEX Background Monitor

The IBEX Background Monitor (IBaM) measures the flux of >~14 keV protons at 0.24s time resolution in a 7-deg (FWHM) conical viewing angle. IBaM is housed with, and coaligned (normal to the IBEX spin axis) with, the IBEX-Hi instrument. The IBEX spin period is ~15 sec. IBaM and IBEX-Hi use identical detectors (channel-electron multipliers) and share a similar electronics design. See Sp.Sci.Rev. (2009) 146:105-115.IBEX背景监测器（IBaM）以0.24秒的时间分辨率，对大于等于14 keV的质子通量进行测量，其视场角为7度的（半峰全宽）圆锥形。IBaM与IBEX-Hi仪器共置，并与IBEX自旋轴正交对齐。IBEX的自旋周期约为15秒。IBaM与IBEX-Hi采用相同的探测器（通道电子倍增器）和相似的电子设计。详情可参考《科学进展》（2009）第146卷第105-115页。