Figure 5. SEM images of porous silicon after irradiation by 100Gy gamma ray in a different magnification degree) x1000, x5000, x10000, x20000)

From

The Effect of Gamma Irradiation on the Structural Properties of Porous Silicon

Ismail Khalaf Abbas, Laith Ahmed Najam, Abd UlKahliq AuobSulaiman

International Journal of Physics. 2015, 3(1), 1-7 doi:10.12691/ijp-3-1-1