Cosmic and Solar Hard X-ray and Gamma Ray Spectroscopy from the South Pole

这笔赠款用于支持在两个气球上对太阳和超新星1987A的x和伽马射线进行高分辨率测量，这两个气球将于1989-1990年南极站发射。这项工作有几个目标：1)研究超新星中的核合成。2)研究太阳耀斑中的电子和离子加速过程。3)寻找宇宙伽马射线暴、回旋辐射和引力红移位置湮没线。探测器是大的、液氮冷却的分段锗晶体。它们是主动屏蔽的，将提供从15keV到几个MeV的高分辨率测量。气球飞行预计将持续5-20天。希望但不是必须的，可以恢复有效载荷。这项建议是太阳耀斑研究的前奏，预计将作为MAX‘91运动的一部分提出。

This grant is to support the high resolution measurement of x and gamma rays from both the sun and supernova 1987a on two balloons which are to be launched from South Pole Station during the austral summer of 1989-1990. The work has several goals: 1) To study nucleosynthesis in the supernova. 2) To study electron and ion acceleration processes in solar flares. 3) To search for cosmic gamma ray bursts, cyclotron radiation and gravitationally red-shifted position annihilation lines. The detectors are large, liquid nitrogen cooled, segmented germanium crystals. They are actively shielded, and will provide high resolution measurements from 15 keV to several MeV. The balloon flights are expected to last for 5-20 days. It is hoped, but not required that the payloads can be recovered. This proposal is a precursor to the solar flare studies that are expected to be proposed as part of the MAX '91 campaign.