View source for RC meeting and Run Plan, Thursday Oct. 11


== Status ==
* '''Beam quality''' [https://logbooks.jlab.org/entry/3607707 First 20.5 hours] [https://logbooks.jlab.org/entry/3607782 Last 3.5 hours]
** Bottom line: terrible first ~19 hours, situation improved markedly in the last ~5 hours
** Current fluctuating between 40uA and 50uA
* ''' [https://hallcweb.jlab.org/wiki/index.php/Kaon_LT_Status_Page Progress]'''
** Added 23% of the minimum statistics on LH2 for the current run
** Completed dummy for the current kinematic point

== Requiring attention ==
* '''[https://logbooks.jlab.org/entry/3607718 HMS Dipole LN2 fill leve]''' very high (essentially full)
** Not urgent, small ice ball forming in non-critical location (we're watching it)
** Cause: seems like JT-4 is stuck again
** Will coordinate with Andy Kenyon early next week for opportunistic escorted access
** '''Alarm disabled for now''', re-enable when fixed. '''[https://logbooks.jlab.org/entry/3607727 Instructions]'''
* '''Rotation to small angle''': Complications when going to 6.50 deg tonight:
** Risk tripping the rotation alarm: Holly on standby
** Need new limits on ion chamber diffusors if we run above >=50uA (Jay Benesh confirmed this is the case), [https://logbooks.jlab.org/entry/3602848 more info here].
** SHMS rates expected to be close to detector limit (tracking efficiency), might need to limit beam current. 
***Would take care of above issue. Current estimate from Garth puts us at <55uA.

== Other requests (non-urgent) ==
* '''RadCon''' wants to put a small detector in the SHMS hut during the next opportunity
** Needs few hours, communicate with Brad when next opportunity arrises
* '''Hall D''' needs opportunistic 1shift of HallC down for beam studies, not pressing right now (needs to be done before end-of-run)
** Unlikely this will happen in the next week

== Plans - Physics ==
* '''Continue until ~midnight''' with  Q2=3. W=3.14 x=0.25 theta_Shms=9.42, hopefully will reach 50-60% of statistics goal
* '''Change SHMS angle to 6.50 deg''' (close to software minimum) for next kinematic point. 
** Aim for 55% of minimum statistics (same as 12 degree point)
** Expect to stay there for ~5-7 shifts.