Explanation and analysis of Newton cradle;

Ten years running of a set of low background anti-Compton HPGe γ-ray spectrometer;

This paper analyses the integral background of a low-background anti-Compton HPGeγ-ray spectrometer by measuring the integral background under three kinds of conditions: no shield,steel-lead complex shield,and steel-lead complex shield plus anti-coincidence.

This paper introduces the anti-coincidence working principle and composing of the low-background anti-Compton HPGe γ ray spectrometer.

The Monte Carlo simulation of Compton backscatter imaging;

K.T.Compton, a great academic leader of American science;