Team A

Instructor: Dr. Thanh Dong Supporter: Ph.D. student, Ngoc Tran; Ms. Linh Pham

Members

• Nguyen Thi Minh Hien
• Nguyen Thu Hang
• Nguyen Phu Huy
• Huynh Quoc Thang
• Tran Thi Minh Hoan

Group A's Final presentation and full report

• Learn how to make SiPM (in this case we use MPPC) work (soldering the electronic circuit for providing bias voltage and get out the signal )
• Explore the properties of MPPC: dark noise; single-photon resolving capability
• Understand the functionality of amplifier, discriminator, coincidence, scaler (or counter)
  • Note the threshold, pulse width
• Learn how to use the oscilloscope, particularly the trigger, bandwidth ….

• MPPC properties: dark noise rate with trigger 0.5 p.e; 1.5 p.e; 2.5 p.e (compare with the specification). Note the difference in the temperature
  • Measure the rising time and falling time of the MPPC pulse (before and after amplifier)
• Measure the speed of light in the optical fibers
• Measure the muon rate
  • Is it consistent with what we expect?
  • On average, a muon passing through will deposit how many photo-electrons.

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))

• Try LED with breadboard (or soldering one)

2. Act #2 (1.75h, Feb. 27 PM) oscilloscope, signal generation (with NIM or function generation); MPPC (a SiPM type) circuit,

3. Act #3 (2.75h, Feb. 28 AM): MPPC circuit; soldering, testing signal, pedestal; noise mitigation with Faraday case

4. Act #4 (2.75h, Feb. 28 PM): 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 (2.75h, Mar. 1 AM): 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

• 4 single mppc/ scintillator/ wavelength shifting fiber
  • MPPC type: S13360-1325 https://www.hamamatsu.com/content/dam/hamamatsu-photonics/sites/documents/99_SALES_LIBRARY/ssd/s13360_series_kapd1052e.pdf

• Nice DC power supply (Max voltage is 60V/120V)
• NIM modules (pulse generator, scaler amplifier, discriminator, coincidence)
• Oscilloscope Siglent SDS1204X-E 200MHz, manual https://siglentna.com/USA_website_2014/Documents/UserManual/SDS1000X&Xplus_UserManual_UM0101X-E02A.pdf
• Function generator model
• Optical fiber beam splitter (Thorlabs part No.) & a a long fiber splitter
• DAQ PC: IFIRSE05