共查询到2条相似文献,搜索用时 15 毫秒
1.
N. S. Nightingale 《Experimental Astronomy》1990,1(6):407-422
A new Silicon avalanche photodiode photon counting detector module with a peak detection efficiency of 45% and a maximum counting rate of more than 3,000,000cts/sec is described and its performance assessed over a range of operating conditions. The module should prove ideal for a wide variety of astronomical instrumentation as it covers the spectral range 350–1050nm and is compact, rugged and relatively cheap. 相似文献
2.
David Clarke Gerry Deighan Gillian Fry Susan Goodsir Donald Macleod 《Astrophysics and Space Science》1996,239(2):229-235
Experiments are described which demonstrate that the dead-time constant associated with a photon counting stellar photometer/polarimeter is readily determinable by the application of the Malus law. It is also proposed that corrections for dead-time losses should be applied by an iteration technique to the exact equation rather than using the available approximation formulae. 相似文献