In-Orbit Performance of the Hard X-Ray Detector on Board Suzaku
In-Orbit Performance of the Hard X-Ray Detector on Board Suzaku
复制标题
DOI：
10.1093/pasj/59.sp1.s53
复制
发表时间：
2006-11
影响因子：
2.3
通讯作者：
M. Kokubun;K. Makishima;T. Takahashi;T. Murakami;M. Tashiro;Y. Fukazawa;T. Kamae;G. Madejski
中科院分区：
文献类型：
--
作者：
M. Kokubun;K. Makishima;T. Takahashi;T. Murakami;M. Tashiro;Y. Fukazawa;T. Kamae;G. Madejski
介绍了“朱雀”x射线天文卫星上硬x射线探测器（HXD）的在轨性能和定标情况。它的基本性能，包括10-600keV的宽能带通，40keV时的能量分辨率为~ 4keV (FWHM)， 511keV时的能量分辨率为~ 11%，以及高背景抑制效率，已经通过广泛的在轨校准得到证实。PIN-Si二极管的长期增益半年稳定在1%以内，闪烁体的长期增益下降了5-20%。在过去的非成像硬x射线仪器中，HXD的残余非x射线背景在15-70和150-500keV的能量范围内是最低的。通过对蟹状星云的多次观测，我们对HXD的能量响应、角响应、定时精度以及x射线CCD相机的相对归一化进行了精确校准。
The in-orbit performance and calibration of the Hard X-ray Detector (HXD) on board the X-ray astronomy satellite Suzaku are described. Its basic performances, including a wide energy bandpass of 10–600keV, energy resolutions of ∼ 4keV (FWHM) at 40keV and ∼ 11% at 511keV, and a high background rejection efficiency, have been confirmed by extensive in-orbit calibrations. The long-term gains of PIN-Si diodes have been stable within 1% for half a year, and those of scintillators have decreased by 5–20%. The residual non-X-ray background of the HXD is the lowest among past non-imaging hard X-ray instruments in energy ranges of 15–70 and 150–500keV. We provide accurate calibrations of energy responses, angular responses, timing accuracy of the HXD, and relative normalizations to the X-ray CCD cameras using multiple observations of the Crab Nebula.