Detector Signal Processing Model senes serles white noise 1/ noise noiseless preamplifier e2Fc/fl A signal processor Q. s(t) d 12=b 12 =d f arallel fs()=8(t) para A(Q/(Cd+ci)) hite noise f nois noise power spectral density Ax[a+blo(cd+Ci)2 The detector is modeled as a current source, delivering a current pulse with time profile s(t) and charge Q, proportional to the energy released across the parallel combination of the detector capacitance Cd and the preamplifier input capacitance Ci Beijing January 2008 Luciano musaBeijing, January 2008 Luciano Musa 8 Q Cd Ci ·s(t) A noiseless preamplifier Detector Signal Processing Model The detector is modeled as a current source, delivering a current pulse with time profile s(t) and charge Q, proportional to the energy released, across the parallel combination of the detector capacitance Cd and the preamplifier input capacitance Ci . signal processor i 2 W=b e 2 W=a parallel white noise series white noise e 2 f=c/|f| i 2 f=d·f series 1/f noise parallel f noise noise power spectral density Ax[a+b/w(Cd+Ci)2] A(Q/(Cd+Ci)) If s(t) = d(t)