In this paper, we discuss the need for very large detection planes for the detection of hard X-ray transients in the multi-messenger era, started with the quasi-simultaneous detection of GRB 170817A by Fermi/GBM and INTEGRAL/SPI and the gravitational waves event GW 170817, detected by the LVC collaboration. After pointing that current and future instruments gain in the number of GRBs thanks to their larger field of view rather than to their larger effective area, we address various problems associated with the realization of very large detection planes (≥ 1m2). Based on our experience withSVOM/ECLAIRs, we demonstrate that CdTe detectors are well suited for this task. We conclude with a discussion of some key parameters that must be taken into account in the realization of instruments based on these detectors. We hope that this paper will contribute to promote the construction of large area wide-field hard X-ray monitors that will be crucially needed in the next decade.

中文翻译：

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设计用于硬 X 射线瞬态检测的大型像素化 CdTe 检测平面

在本文中，我们从费米/GBM 和 INTEGRAL/SPI 准同时探测 GRB 170817A 以及引力波开始，讨论了在多信使时代探测硬 X 射线瞬变所需的超大探测平面的必要性。波事件 GW 170817，由 LVC 协作检测到。在指出当前和未来的仪器由于更大的视场而不是更大的有效面积而增加了 GRB 的数量之后，我们解决了与实现非常大的探测平面（≥ 1 平方米）相关的各种问题。根据我们在 SVOM/ECLAIR 方面的经验，我们证明 CdTe 探测器非常适合这项任务。我们最后讨论了在实现基于这些探测器的仪器时必须考虑的一些关键参数。