Gamma-ray(γ-ray)radiation for silicon single photon avalanche diodes(Si SPADs)is evaluated,with total dose of 100 krad(......

通过两年的田间试验,利用叶绿素仪（SPAD-502）测定了不同生育时期水稻（南粳44号）冠层叶片的SPAD（soilplant analysed and development）值......