kek visit to fermilab --- week 2
Post on 11-Feb-2016
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1
KEK visit to Fermilab --- Week 2
- Made Interface Bread Board to allow KEK system to switch the clock phase. After resolving grounding issues, every thing works.
- Testing of Demod output from KEK system
From KEKClockingSystem
To (MAB), going tothe phase switches
protection: -0.6 volts min, 1.2 volts max, 1 nF to ground
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Testing the Demod Readout of KEK system
Magic-T50 ohm Module
eccosorb or Gunn Diode
LV biases from MMIC
Jig Board
KEK clockingsystem
(4Khz and 50 Hz)
KEK preamps(x100)
Q1KEK ADC
PS voltages
Mac Mini
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Start 4Khz clock End 4 Khz clock
no eccosorb
eccosorb
Hard to see changein Demodoutput
with andwithouteccosorb
Demodoutputhas smallglitches anddrifts
4Gunn Diode ONGunn Diode
OFF
GunnDiodeswitchingON/OFFmakesclear change in DemodOutput
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