Shu's weekly group discussion

Wednesday 21 Jan 2026, 10:00 → 13:00 Asia/Shanghai

Tsung-Dao Lee Institute/N6F-N631 - Smart Classroom (Tsung-Dao Lee Institute)

点击链接入会，或添加至会议列表：

https://cern.zoom.us/j/4042031778

1 Status

Speaker: Kang Yu (TDLI, SJTU)

2 Status

Speaker: Linjing Duan (TDLI, SJTU)

3 Status

Speaker: Jun Wei Lok (TDLI, SJTU)

4 Status

Speaker: Zelin Yan (TDLI, SJTU)

5 Status

Speaker: Bai-Hong Zhou (TDLI, SJTU)

6 Status

Speaker: Xuliang Zhu (TDLI, SJTU)

7 Status

Speaker: Zhiyu Zhao (TDLI, SJTU)

8 Status

Speaker: Haidar Mas'ud Alfanda (TDLI, SJTU)

9 Status

Speaker: Matthias Tartarin (TDLI, SJTU)

REU: Undergrad Research Discussions

10 Status

Speaker: Peixu Teng (SPA, SJTU)

2026_1_21.pdf

11 Status

Speaker: Zhijing Zhang (CCNU & TDLI/SJTU)

I collected 1012 waveform data points and superimposed all waveforms into a single graph. To reduce errors and improve resolution, I determined the baseline based on the interval from -500 ns to -200 ns for each waveform. Then I integrated the data from the -50 ns to 250 ns interval after subtracting the baseline value, resulting in this energy spectrum.

            

To ensure that I could independently complete a full set of experiments, I carried out preparations for several key pieces of equipment. Included wrapping an LYSO crystal with reflective film, soldering a circuit board and designing and 3D-printing a mold to secure and align the crystal with the circuit board.

• wrap the LYSO crystal with reflective film

• solder circuit board

• 3D-print a mold

Next week's plan: measure the intrinsic radioactivity of the crystals (sizes: 25×25×25 mm³ & 25×25×100 mm³) using my self-prepared experimental setup.

12 Status

Speakers: Jiacheng Shi (SPA, SJTU), Yuning Chen (Zhiyuan College, SJTU), Zhengyang Qian (SPA, SJTU)