[Isotope-prod] No 11:00 Meeting today

[Haipeng Wang]

Kevin, thank you for your progress. I will be there tomorrow morning. Do we need spectrum analyzer for the first RF power rise? We do need it back on Friday for the ILC LSF cavity cold testing.
Cheers
Haipeng

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________________________________
From: Robert Rimmer <rarimmer at jlab.org>
Sent: Wednesday, January 5, 2022 3:36:07 PM
To: Kevin Jordan <jordan at jlab.org>; isotope-prod at jlab.org <isotope-prod at jlab.org>; LCLS II @ LERF <lerftest at jlab.org>; Haipeng Wang <haipeng at jlab.org>
Subject: Re: No 11:00 Meeting today

great, thanks!
Bob.

________________________________
From: Kevin Jordan <jordan at jlab.org>
Sent: Wednesday, January 5, 2022 9:53 AM
To: isotope-prod at jlab.org <isotope-prod at jlab.org>; LCLS II @ LERF <lerftest at jlab.org>; Robert Rimmer <rarimmer at jlab.org>; Haipeng Wang <haipeng at jlab.org>
Subject: No 11:00 Meeting today


The magnetron transmitter commissioning is going well;

  *   Amtek has been very helpful – they sent video of their test stand showing filament warmup & cooldown timing & have answered other interlock & timing questions
  *   Temperature regulation PLC code is working well (chiller in Area 51 supplies ~10C water to transmitter heat exchanger & has bang-bang water flow solenoid control)
  *   Solenoid magnet power supply is operational, the power supply is 4-20 mAmp control to 480 VAC phase angle so it is nonlinear (not simple current regulated PS), the readout has been calibrated with external current meter & is spot on (nominal current is 5.7 Amps)

 https://www.watlow.com/-/media/documents/user-manuals/din-c-rev-q.ashx



  *   Filament power supply is also phase angle controlled so I have been very careful with scaling (w/HV ON - 120 Amps on filament = zero power out, 80 Amps = full output power of 75 kWatts @915MHz) I programmed interlock to ensure filament is at 120 Amps to permit HV to be energized. This will be cross checked & calibrated today as well
  *   HV testing today with 480 VAC OFF (there are two remote operated 480 VAC breakers one for HV & the other for everything else) – I will test all interlocks & timings prior to actually putting HV on the tube
  *   I plan to make RF tomorrow & snoop for any waveguide leakage (there are two waveguide pressure interlocks @1 PSI)
  *   When commissioning is complete I will modify the “Commissioning OSP” to an “Operations OPS”



Best regards,

Kevin



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