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teamb2023

Table of Contents

Team B

Instructor: Dr. Son Cao

Supporter: Ph.D. student Quyen Phan; M.Sc. Sang Truong

Members:

  • Nguyen Thi Yen Binh
  • Trinh Hoang Dieu Ngan
  • Dang Quoc Trieu
  • Nguyen Duc Phu
  • Nguyen Thi Nhung

Group B Final presentation and final report

Targets

  • MPPC properties
    • observe 1pe, 2pe and the corresponding threshold
    • check the rising/falling time (note the definition of the rising and falling time)
    • dark count rate with 1pe; 2pe; 3pe
    • check `pattern` trigger (need calibration?) with coincidence of 2, 3
      • Use DRS4 waveform generator (or Arduino) for example
      • Coincidence gate
  • Fluorescence lifetime by exciting with UV LED
    • Measure rising/falling time with oscilloscope (note the signal size)
    • Fit with exponential and/or oscilloscope measurement function
  • Cosmic muon counter
    • calculate the rate with area of detector (size of plastic scintillator)
    • Scintillator inefficiency (rate of 1,2,4; vs rate of 1,2,3,4)
    • Muon Signal corresponding to how many P.E?

Hands-on Activities

1. Act#1 (1.5h, Feb. 27 AM): safety, lab arrangement, components, rules; light source (LED) driven with waveform generator, arduino or analog discovery; various LED wavelength; soldering a circuit for LED (this is to use with MPPC later, so think a bit about design to easily coupling to MPPC (direct or with optical fibers, mimicking the use of the WLS))

2. Act #2 (1.75h, Feb. 27 PM) oscilloscope functionality, signal generation with analog discovery, counting function and coincidence pattern trigger

3. Act #3 (2.75h, Feb. 28 AM): Single MPPC circuit; soldering, testing signal, pedestal; noise mitigation with Faraday case, checked if can see single P.E without amplifier?

4. Act #4 (2.75h, Feb. 28 PM): Start working with MPPC array; measure MPPC characteristics (noise rate, gain; timing response); measure the fluorescence lifetime with Thorlabs fluorescence plates

5. Act #5 (2.75h, Mar. 1 AM): Continue with fluorescence lifetime measurement if needed. measure coincidence rate. Work in combination of Scintillator, wavelength shifting fiber and photosensor; concept of muon counter; NIM modules to use: discriminator, scaler, coincidence (and delay if needed)

6. Act #6 (2.75h, Mar. 1 PM): Data taking and analysis

7. Act #7 (2.75h, Mar. 2 PM): Data taking and analysis

8. Act #8 (2.75h, Mar. 3 AM): Data taking and analysis

9. Act #9 (2.75h, Mar. 3 PM): Data taking and analysis

Hardware availability

teamb2023.txt · Last modified: 2023/03/19 22:02 by nuicise