Understanding the Impact of Crosstalk on MIP Spectrum
Explore how crosstalk influences MIP spectrum and the complexities involved in analyzing and correcting for it in particle detection systems. Dive into the intricacies of Landau MPV scanning and potential biases introduced by fitting methods.
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Presentation Transcript
Crosstalk on MIP Spectrum 2023/09/23 Speaker : Jiaxuan Wang
Motivation: how does crosstalk affect MIP spectrum Crosstalk: 10um-0.1 15um-0.15, MIP MPV also (1+p_ct) ? Independent test Get random hist from Landau function MPV scanning: 10um(80-140); 15um(200-800) Landau width: 10um 15; 15um 50 Photon Number: Division of random number by (SiPM_Gain*PDE) Poisson distribution Light output uniformity Pixel MC correction Crosstalk = 0 & crosstalk = 0.1, 0.15 ADC gaussian distribution 2025/6/6 2
10um SiPM MPV: 95, 125 2025/6/6 3
10um SiPM 2025/6/6 4
15um SiPM 2025/6/6 5
15um SiPM 2025/6/6 6
2025/6/6 7
Landau MPV Scanning (10um, 0.5 threshold cut) MPV_CT and MPV_SET non-linearity ~(1+p_crosstalk) Wave-like Fit method may introduce bias 2025/6/6 8
2025/6/6 9
Landau MPV Scanning (15um, threshold cut) Same situation on 15um 2025/6/6 10
Landau Width Scanning (10um, threshold cut) With width increase, MPV decrease Fit method may introduce bias 2025/6/6 11
Landau Width Scanning (15um, threshold cut) Same situation on 15um 2025/6/6 12
Summary Scanning of Landau MPV and Landau Width MPV could be easily affected by current fitting method Correction or new function? 2025/6/6 13
