[dsg-hdice] Questions on Work Request Presentation

[Amanda Hoebel]

Hi Xiangdong,


Let's discuss these questions during our biweekly meetings.


Regards,

Amanda


________________________________
From: Xiangdong Wei
Sent: Thursday, April 18, 2019 10:46 AM
To: Amanda Hoebel
Subject: Re: Questions on Work Request Presentation

Hi Amanda,

These questions basically covered all communications between our two groups. I can answer them without explanations in a few days or I write a detailed answer when I find time. Or I can explain them piece by piece during our biweekly meetings in the following months.

Let's discuss the options and figure out the best way to proceed.

Thanks,

Xiangdong
________________________________
From: dsg-hdice <dsg-hdice-bounces at jlab.org> on behalf of Amanda Hoebel <amandah at jlab.org>
Sent: Wednesday, April 17, 2019 3:49 PM
To: dsg-hdice at jlab.org
Subject: [dsg-hdice] Questions on Work Request Presentation


Hi Xiangdong,


I gave a presentation on the status of the work requests given to DSG by HDIce during the weekly meeting and the following questions were asked.  Could you help me answer these questions?


  1.  How many power supplies in all does HDIce have?
  2.  Where are these power supplies used?
  3.  Are there any spares for these power supplies?
  4.  Why does the RF Attenuation and Distribution Box switch to the RF Amplifier?
  5.  What is the purpose of AFP mode?
  6.  Has HDIce ever run AFP mode?
  7.  How is AFP mode different from NMR mode?
  8.  How often does HDIce change the polarization of the target?
  9.  How long does it take to change the polarization?
  10. When the target is exposed to the electron beam, how long does it take for the polarization to decay?
  11. What is the present field range used for the NMR program?
  12. Why was the change in field range for the NMR program requested (from its original 300 G value)?
  13. Why is a current measurement of <0.01% accuracy needed for the NMR program?
  14. Why did HDIce originally need the Mathematica program?
  15. When does the machine shop expect to finish the magnet winding?
  16. When will HDIce be done with the present CT-Box analysis so work can begin on a second CT-Box?

Regards,
Amanda

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