User Tools

Site Tools


handsonact

This is an old revision of the document!


Hands-on Activities

Check the agenda https://teamup.com/kscub44vaqgwbid5kq?showProfileAndInfo=0&showSidepanel=1&showAgendaHeader=1&showAgendaDetails=0&showYearViewHeader=1

The following is a provisional agenda. Mentors of each group can adjust basing on his/her preference and the group situation

1. Act#1 (2.75h, Mon. Mar.4):

  • Safety rules, lab arrangement (group allocation, soldering station…), hardware components (oscilloscope, multimeter…)
  • Spend significance time to practice with oscilloscope and function generator or the like (create an electric (analog) signal with defined frequency, amplitude, width, rise and fall time and see the record from oscilloscope)
  • LED driving with function generator or the like (at which frequency you can't see the light pulses in discrete pattern; at with amplitude you can't see the light)
  • Introduce photosensor and how to work with it
    • Group A: Single MPPC, can use a working readout board to see the signal with dark noise; observe the distinguish between 1 PE, 2PE.. and signal with LED. Try to see at the level where you can't see by your eye but can see with sensor
    • Group B: MPPC array, check the voltage operation in the board, quickly check the signals from various channels (try all 16 channels and notice the (non-)uniformity in the response); observe 1PE, 2PE…
    • Group C: Light tightening; and get the PMT signal; adjust the operation voltage and gain control

2. Act #2 (1.5h, Tue. Mar.5)

Making the circuit to work with MPPC (group A and C), LED driving with function generator. Observe signal from sensor with various configuration (intensity, frequency, pulse width..)

  • Group A
    • Two students go for circuit soldering, the other try to setup and understand functionalities of oscilloscope, control LED/ Nanobeacon
    • Understand the concept of signal coincidence/ difference between using the NIM modules and oscilloscope
  • Group B
    • Measure the noise rate, electric gain, coincidence noise
    • LED driving and check the signal, check the optical cross-talk (shining on one channel, and check signal from the other channels)
  • Group C
    • LED driving with Analog discovery (software is on the allocated PC)
    • PMT signal vs MPPC signals: check detection efficiency, dynamic range, linearity

3. Act #3 (1.75h, Tue. Mar.5):

MPPC circuit; soldering, testing signal, pedestal; noise mitigation with Faraday cage

4. Act #4 (1.75h, Wed. Mar. 6):

Light tightening; MPPC characteristics (noise rate, gain, supply voltage dependence; timing response); measure the speed of light in the optical fibers if having time (concept of light detection and ranging or LiDAR in short); NIM modules to use: disciminator and scaler

5. Act #5 (1.75h, Thu. Mar. 7):

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 (2.0h, Thu. Mar. 7):

Data taking and analysis

7. Act #7 (2.75h, Fri. Mar. 8):

Cosmic ray muon data taking and analysis

8. Act #8 (2.75h, Fri. Mar. 8):

Cosmic ray data taking and analysis

handsonact.1709486594.txt.gz · Last modified: 2024/03/03 10:23 by nuicise