摘要: As the size and sophistication of spacecraft have increased, anomalies inoperational performance caused by the interaction of the energetic-particle population and the spacecraft have likewise increased. The Compact Environmental ... 展开 As the size and sophistication of spacecraft have increased, anomalies inoperational performance caused by the interaction of the energetic-particle population and the spacecraft have likewise increased. The Compact Environmental Anomaly Sensor (CEASE) is being developed as a small, low-power device to monitor space weather and provide autonomous warning of conditions that could cause operational anomalies. Based on the sensor-design and trade-off studies for CEASE, a dosimeter set consisting of solid-state detectors behind aluminum absorbers (of several thicknesses) has been chosen. The outputs of the detectors are fed into algorithms that warn of certain anomalies: (1) surface dielectric charging, (2) deep dielectric charging, (3) total radiation dose behind 0.035 g/cm to the 2nd power, (4) total dose behind 0.41 g/cm to the 2nd power, and (5) single event upsets. From seven quantities derived by algorithm processing, eight warning levels (1, 3, 100...3000 x base) are obtained for each of the five anomalies. Level flags can then be selected for a particular application. For such a CEASE instrument, we estimate a volume of 64 in to the 3rd power (4-inch cube), a weight of 2 pounds, and power dissipation of 2 watts. 收起