Differences

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--- handsonact [2024/03/03 10:53] – [2. Act #2 (1.5h, Tue. Mar.5)] nuicise
+++ handsonact [2024/03/03 11:00] (current) – [5. Act #5 (1.75h, Thu. Mar. 7):] nuicise
@@ Line 31: / Line 31: @@
   * **Group A** Test the soldered circuits, noise suppression, noise rate, coincidence rate...(estimate the muon rate on the scintillator and use it for reference)
   * **Group-B** Optical cross-talk check: shining LED in a specific channel and check the signal of the nearby channels. Justify whether this cross-talk is significant or not.
-  * **Group-C**
+  * **Group-C** LED driving with Analog discovery (software is on the allocated PC);  PMT signal vs MPPC signals: check detection efficiency, dynamic range, linearity
 ===== 4. Act #4 (1.75h, Wed. Mar. 6): =====
   * **Group A**: setup and measure the speed of light in the optical fiber (convert from timing to distance; refer to the refractive index of the optical fiber)
   * **Group B**: setup and measure the profile of a light source (eg. from LED transport through an optical fiber. Refer to the so-called numerical aperture of the fiber )
-  * **Group C**
+  * **Group C**: Setup and measure the spectra of the light source with optical filters
 ===== 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)
+  * **Group A** use scintillator bar; wavelength shifting fiber polishing and glue to be fitted in the optical connector to single MPPC
+  * **Group B** use laser-cutted plate for coupling wavelength shifting fiber to sensor.
+  * **Group C** use scintillator cube; observe signal; check the rate; compare the signal with wavelength shifting fiber
 ===== 6. Act #6 (2.0h, Thu. Mar. 7): =====
   *  Check the coincidence rate of muons and see whether it is consistent with what we expect. Try to tighten or loosen the threshold in the trigger pattern and see how the result changed.