[Dsg-rich] Reflectivity test station's monochomator not working

Fri Nov 3 06:53:29 EDT 2017

He should be proud of himself, and what is this "*we*" fixed it?  And 
Tyler, don't let an old man preach to you about not reading manuals or 
asking for directions - smart men do both.

On 11/2/2017 7:24 PM, Amrit Yegneswaran wrote:
> tyler,
> o! aren't we so proud of ourselves!
> we fixed it.
> so, what am i supposed to do this evening, now after dinner?
> i was planning to go over and give the monochromator a couple of 
> whacks and force it in the right position.
>
> know this son: /real men don't read manuals or ask for directions./
> /got that?
> /
> so, thanks a lot Mr. Goody two-shoes we-fixed it!
> be ready for a rough day tomorrow.
> you are going to have a lot to fix in the near future.
> Hah! that cheers me up.
> now where's that bottle of chianti?
> goodnight and godbless
> amrit
>
>
> ------------------------------------------------------------------------
> *From: *"Tyler Lemon" <tlemon at jlab.org>
> *To: *"dsg-rich" <dsg-rich at jlab.org>
> *Sent: *Thursday, November 2, 2017 4:59:53 PM
> *Subject: *Re: [Dsg-rich] Reflectivity test station's monochomator not 
> working
>
> Hello,
>
> After calling Newport to ask for recommendations on what can be done 
> to fix the monochromator, they recommended to check whether the 
> diffraction grating had turned too far, going past its home location 
> causing an error condition.
>
> Page 6 of the attached pdf describes the procedure they gave to 
> recover from the error condition.
>
> With the monochromator powered off, Luca and I manually turned the 
> diffraction grating using the drive gear. We then powered on the 
> monochromator and it was able to verify its home position and be 
> operated as normal.
>
> The monochromator is now working again and can be used as before for 
> reflectivity tests.
>
> Best regards,
> Tyler
>
> ------------------------------------------------------------------------
> *From: *"Amrit Yegneswaran" <yeg at jlab.org>
> *To: *"Mirazita Marco" <Marco.Mirazita at lnf.infn.it>
> *Cc: *"Tyler Lemon" <tlemon at jlab.org>, "dsg-rich" <dsg-rich at jlab.org>
> *Sent: *Thursday, November 2, 2017 4:54:56 PM
> *Subject: *Re: [Dsg-rich] Reflectivity test station's monochomator not 
> working
>
> marco,
> i do hope they can.
> it would be wonderful
> maybe nick has a spare monochromator
>
> but from past experience, i would say its wishful thinking.
> last time peter had to fix the problem.
>
> maybe, tonight i should give the monochromator a couple of whacks!
> remember murphy's law "If it jams - force it. If it breaks, it needed 
> replacing anyway."!!!
>
> amrit
>
> ------------------------------------------------------------------------
> *From: *"Marco Mirazita" <Marco.Mirazita at lnf.infn.it>
> *To: *"Tyler Lemon" <tlemon at jlab.org>
> *Cc: *"dsg-rich" <dsg-rich at jlab.org>
> *Sent: *Thursday, November 2, 2017 3:30:03 PM
> *Subject: *Re: [Dsg-rich] Reflectivity test station's monochomator not 
> working
>
> Hi Tyler,
> You could contact Yuri or Nick first, perhaps it is a known problem and
> they know how to solve it.
> Marco
>
>
> Il 2017-11-02 14:41 Tyler Lemon ha scritto:
> > Hello,
> >
> > Today, just before lunch Marco Mirazita informed me that the
> > monochromator used for the reflectivity test station was not
> > responding.
> >
> > The monochromator's program was frozen and shown as not responding on
> > the screen.
> >
> > I tried the following to get it working again:
> >
> > - power-cycled monochromator
> >
> > - power-cycled PC
> >
> > - swapped USB chords
> >
> > - confirmed that device was seen by PC in device manager
> >
> > - confirmed drivers are up-to-date on PC
> >
> > - attempted to use updated version of program from Newport, the
> > monochromator's manufacturer.
> >
> > - used local version of program installed on PC rather than version on
> > O: drive.
> >
> > After all of the above, the onochromator still does not respond when
> > using the program. Since the PC shows that it sees the monochromator
> > in the device manager, it seems that it is a hardware issue.
> >
> > Peter has also looked at the monochromator and came to the same
> > conclusion that it is most likely a hardware issue.
> >
> > This afternoon, I will contact Newport to see if they have any
> > suggestions and to see if they have one that they could load us to be
> > able to complete the reflectivity measurements.
> >
> > Best regards,
> >
> > Tyler
> >
> >
> > _______________________________________________
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> > Dsg-rich at jlab.org
> > https://mailman.jlab.org/mailman/listinfo/dsg-rich
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