[Brahms-l] Fw: SPY news update: n +=5 ; .... next scheduling physicist ; Do you know how oxgyen ions are made in Tandem ?

This includes the best current estimate for RHIC closeup in RUN-5. With The
expected 2+2 weeks setup one can expect 7/24 physics running starting around
Mid-November with tune-up owl shifts before then.

flemming

----------------------------------------------------------------
Flemming Videbaek
Physics Department
Brookhaven National Laboratory

e-mail: videbaek@bnl.gov
phone: 631-344-4106
----- Original Message ----- 
From: "Kin Yip" <kinyip@bnl.gov>
To: <kinyip@fnal.gov>
Sent: Monday, August 16, 2004 11:28 AM
Subject: SPY news update: n +=5 ; .... next scheduling physicist ; Do you
know how oxgyen ions are made in Tandem ?


> ====== Scheduling Physicist -YIP (ie. SPY) news channel ========
>
>
****************************************************************************
*******************
>
> (1) n += 5 for the RHIC schedule ; NSRL-4 on schedule
>
> Due to the STAR expt.'s need to receive/install all the fiber bundles for
their barrel
> electromagnetic calorimeter, relevant parties have agreed to delay the
RHIC 2005
> schedule by 5 days.  The expts. including STAR should be ready in the
evening of
> Oct. 15, 2004 which is a Friday.  So, all the starting dates for cool-down
etc.,
> eg. ~Sept. 1 for nitrogen cool-down and ~Oct. 1 for helium cool-down are
> delayed by 5 days (to ~Sept. 6.   and ~Oct. 6 respectively).
>
> >From my last year's expt., I am guessing a complete/final PASS (our
security
> system) test on or near the evening of Oct. 15, 2004.   So, you (the
expts.)
> are warned !!
>
> Preparation for the NSRL-4 (NASA) will start next Monday (Aug. 23) and
NSRL-4
> experiments are scheduled to run the following Monday (ie., Aug. 30).
This
> NSRL run is scheduled to finish on Oct. 1, 2004 (Friday).
>
>
****************************************************************************
*******************
>
> (2) AGS rotor problem in the Motor-Generator
>
> There is a problem in the rotating system of the Motor-Generator for the
AGS.
> People are working to start fixing the problem and it may take more or
less
> ~1 month from now to fix this.  This doesn't seem to be a major problem in
> the delay.  The first time that the accelerator people need to use the AGS
> will be on Sept. 18/19 (a weekend in the middle of the NSRL/NASA run).
> But we probably won't need acceleration on those 2 days and therefore
> not much power is needed.   ( And Westinghouse is always there in
> case large power is needed when the Motor-Generator is not ready. )
>
>
****************************************************************************
************
>
> (3) the next scheduling physicist
>
> How can I let you know about  the name of the next scheduling physicist
without
> losing my job ?
>
> Ah yes, let me omit every other letter of his name so that I haven't
> really told you.   He is   "C..r..s..o..h    M..n..a.."  in the
Accelerator Division :-)
>
>
****************************************************************************
***********
>
> (4)  Oxygen in NSRL-4 ... Do you know how oxgyen ions are made in Tandem ?
>
> We'll have oxygen ions for the coming NSRL-4 (NASA) run.   We have never
> had oxygen ions in the Booster though we did run with oxygen ions probably
> in the years of ~1986-1990 before Booster came into being.
>
> When I asked around how oxygen ions are made in the Tandem, even
> senior physicists were not completely sure about it.
>
> You'd think they'd use a tank of oxygen but actually they use solid iron
oxide.
> I have learnt the following for the Tandem:
>
> Cs hitting on the hot filament are attracted to the electrode at ~-300 kV
containing
> iron oxide (for example).   Cs is used to reduce the work function of the
metal
> surface.  The negative ions including oxygen ions are thus produced and
repelled
> away by the -300 kV.  Magnets at the end would extract the oxygen ions
from other
> negative ions to the Tandem beamline
>
> All ions in Tandem are made from solid materials (instead of gas).  Iron
oxide
> is used to produce the Fe ion and oxygen ion.  Titanium hydride (TiH2) is
> used to make the Ti ion and the proton.
>
> Our linear accelerator only produces protons and they use hydrogen gas.
>
>
****************************************************************************
***********
>
> (5) Miscellaneous :
>
>  (i) MCR personel flow :
>
>      Compared to the peak last year, 4 operators have left the MCR (Main
>      Control Room) at different times.  New operators are hired and
arrive/are arriving.
>
>  (ii) The soft start-up implementation for the STAR magnet system has some
>        delays due to some mis-judgement and thus the need to re-design
problem
>        and "paperwork" delay to find the outside company to do the job.
As a
>        result, the soft start-up system will not be ready but hopefully
may be
>        implemented during some maintenance days and ready for use in the
>        middle of the run.
>
>
****************************************************************************
**********
>
>
> ====== ======= ====== ======= ====== ======= ====== =======
>
> This SPY news channel solicits YOUR input of any sorts.
> You'll be paid back with loads of gratefulness :-)
>
> Let me know if you want to get out of this private email mailing list.
>
> SPY's webpage :
>
> http://www.c-ad.bnl.gov/kinyip/SchedPhys/
>
> =================================================================
>
> Disclaimer: Whatever is being said here is not always 100% accurate
> though I try my best to avoid being 100% inaccurate :-)
>


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