ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] The night-time laser radar system (Table 1) is unsuitable for measurements during the day because the daytime sky would produce a photon count rate of up to 2 GHz. That is far in excess of the maximum synchronous count rate of the photo-multiplier system, 30 MHz, and the ratio of the signal counts ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/239509a0