Inertial fusion implosions are diagnosed using γ rays to characterize the implosion physics or measure basic nuclear properties, including cross sections. For the latter, previously reported measurements at laser facilities using gas Cherenkov detectors are limited by a large systematic uncertainty in the detector response. We present a novel in situ calibration technique using neutron inelastic scattering, which we apply to the new GCD-3 detector. The calibration accuracy is improved by ∼3× over the previous method.

中文翻译：

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改进了 OMEGA 气体切伦科夫探测器的校准

惯性聚变内爆使用 γ 射线进行诊断，以表征内爆物理或测量基本核特性，包括横截面。对于后者，先前报道的使用气体切伦科夫探测器在激光设施上进行的测量受到探测器响应中很大的系统不确定性的限制。我们提出了一种使用中子非弹性散射的新型原位校准技术，我们将其应用于新的 GCD-3 探测器。校准精度比以前的方法提高了~3倍。