Difference between revisions of "Monday, January 11, 2016, 11:00am EST - Compton"

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(New page: <pre> *********BLUEJEANS CALL-IN INSTRUCTIONS********* ---------------------------------------------------- 1. Dial Toll-Free Number: 1-888-240-2560 (U.S. & Canada) 2. International partic...)
 
 
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* Laser became noisy right before beam test - was able to lock, sort of.
 
* Laser became noisy right before beam test - was able to lock, sort of.
 
* Investigating source of noise:
 
* Investigating source of noise:
** Seed laser ok
+
** Seed laser ok [https://hallaweb.jlab.org/dvcslog/compton/160106_092204/IMG_20160105_145538.jpg Scope photo]
 
** Coupling into fiber amp?
 
** Coupling into fiber amp?
 
** Fiber amp itself?
 
** Fiber amp itself?

Latest revision as of 11:41, 8 January 2016

*********BLUEJEANS CALL-IN INSTRUCTIONS*********
----------------------------------------------------
1. Dial Toll-Free Number: 1-888-240-2560 (U.S. & Canada)
2. International participants dial:
Toll Number: 1-408-740-7256
3. Enter meeting ID:140287970

Desktop sharing:
https://bluejeans.com/140287970 

Agenda

Meeting room=F226 in Cebaf Center

General

  • Meeting time/day: Mondays at 11 am still ok?

December Run

  • There was one opportunity for Compton running during December 2015 run
  • Yves steered beam through chicane (at 11 GeV) pretty easily
  • Did not see obvious collisions at first (background = 2000 Hz)
    • Yves reduced backgrounds to 500 Hz
    • Beam interrupted before we could do vertical scan
  • See logbook for more:


Laser

  • Laser became noisy right before beam test - was able to lock, sort of.
  • Investigating source of noise:
    • Seed laser ok Scope photo
    • Coupling into fiber amp?
    • Fiber amp itself?
    • Back-reflection?

Photon Detector

Electron detector

  • Status of detector in hall
  • QWAD tests: JLab (Hoskins/Camsonne)
  • QWAD tests: Manitoba


Minutes