EUV Images Features for Solar Prominence Eruption Detection

PCT No. PCT/EP96/01164 Sec. 371 Date Sep. 26, 1997 Sec. 102(e) Date Sep. 26, 1997 PCT Filed Mar. 14, 1996 PCT Pub. No. WO96/30778 PCT Pub. Date Oct. 3, 1996The invention relates to an arrangement for detecting approaching high-velocity targets using rotatable optical detectors (2, 3) of the line array type. With a view to the suppression of false alarms, the arrangement moreover comprises a hollow rotation axis (4) containing a mirror (14) that can be oriented such that a detector of the staring array type, a laser range-finder or a CW Doppler laser detector, all likewise contained in the hollow rotation axis, can be directed at a potential target.