For aluminum ( Z = 13) and gold ( Z = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? ( )
A: 36.93
B: 0.03
C: 134.5
D: 1.47
A: 36.93
B: 0.03
C: 134.5
D: 1.47
举一反三
- For aluminum ( Z2 = 13) and gold ( Z2 = 79 )targets, what is the ratio of α particle scattering at any angle for equal numbers of scattering nuclei per unit area? ( )
- There are three types of scattering, including ( ) . A: Nonselective scattering B: Mie scattering C: Rayleigh Scattering D: Forward-scattering
- Which of the following is not a valid conclusion from Rutherford’s alpha particle scattering experiment? ( )
- At what scattering angle will incident 100-keV x-ray leave a target with energy of 90 keV? Note that here we only consider the Compton scattering with valence (free) electrons. A: 85 degree B: 80 degree C: 75 degree D: 65 degree E: 55 degree
- Spontaneous Brillouin<br/>scattering is generated through the interaction between the input<br/>light field and the thermally<br/>fluctuating acoustical fields______ .The feature of this effect is that the frequency shift of the<br/>scattering light is dependent on the scattering angle and theacoustic<br/>velocity<br/>______ in<br/>the medium.