0620 Group meeting

Shiuan Hal

Contents

1. To define the TDC analysis end point 2. To define the TDC analysis start point 3. TDC analysis result 4. ADC profile analysis 5. ADC shape difference analysis 6. ADC cut analysis

TDC

capturefree

xx

eCCeCy

321

The end point of background fitting

The start point of background fitting

Lower than world average

The start point of background fitting

Some correction for the fitting function

The original fitting function:

The fitting function after correct:

C1:constant C2:pedistal : muon lifetime

N: the start point of fitting function

21 CeCy free

x

2

)(

1 CeCy free

Nx

free

ADC

All cut in 800

Cu,Fe cut in 910

bg cut in 940

Al cut in 950