[Hallc_running] [Jpsi-007] J/psi-007: Amendment: schedule extension not yet official
sjjooste at jlab.org
Fri Jan 25 16:16:54 EST 2019
We have been made aware that the assumption of a beam extension was a bit premature. Physics has assured us that they are committed to pursuing an extension to the schedule if possible, but asked us to retract our announcement until it has been officially approved, which is anticipated to happen sometime next week.
For now, any shifts past the original scheduled end date of 2/20 are currently only tentative and will be canceled in case the extension to the schedule does not take place. I will send send an update as soon as we learn about new developments.
Note that the current delay in the schedule is for cavity reprocessing that aims to raise linac energies to a level necessary for our experiment, as well as reduce the trip rate for beam to all halls significantly.
I apologize for any inconvenience this may cause,
> On Jan 25, 2019, at 10:57 AM, Sylvester Joosten <sjjooste at jlab.org> wrote:
> Dear Colleague,
> I am contacting you on behalf of the spokespeople for the Hall C J/psi-007 experiment (E12-16-007). As you might already be aware, accelerator is having issues restoring the machine to a reliable state where they can deliver >2.1GeV/pass. In order to mitigate these issues, MCC and management decided to spend a week helium processing problematic cavities in the north linac.
> Because of this delay, the J/psi-007 experiment is pushed back by 8 days. We extended the shift signup sheet to reflect the later end date of the experiment, with a new end-date of February 28th. All shifts up to February 5th have been canceled, and the tentative new start date for Physics beam will be February 7th.
> You can sign-up for the new, extended shift schedule here: https://misportal.jlab.org/mis/apps/physics/shiftSchedule/index.cfm?experimentRunId=HALLC-J/PSI-2019 <https://misportal.jlab.org/mis/apps/physics/shiftSchedule/index.cfm?experimentRunId=HALLC-J/PSI-2019>
> Shift Instructions:
> The shift requirements for authorship on papers for J/psi-007 will be conducted on a per-institute basis. The institutes will earn authorship credits based on the number of weighted shifts completed. Note that OWL shifts receive an extra weight of 1.5.
> Shift Requirements:
> 1 authorship credit: 6 weighted shifts
> 2 authorship credits: 10 weighted shifts (5 shifts per credit)
> 3 authorship credits: 12 weighted shifts (4 shifts per credit)
> 4+ authorship credits: 4 weighted shifts per credit
> A professor with a single student will need 2 authorship credits. The professor can ask their student to complete all 10 weighted shifts. Or they can both share the load and do any combination of shifts to get to a total of 10 weighted shifts.
> A group of three professors will need 3 authorship credits. They will need 12 weighted shifts for this. They can share this shift requirement any way they would like.
> Training Requirements:
> The training requirements for our experiment are identical to those for all other Hall C experiments:
> Hall C Safety Walkthrough (SAF112) (see https://www.jlab.org/human_resources/training/webbasedtraining <https://www.jlab.org/human_resources/training/webbasedtraining> for more info)
> All training (including RadWorker I) up-to-date. You can check the status of your training here: https://misportal.jlab.org/training <https://misportal.jlab.org/training>
> Target operators need additional Cryotarget training (PH019a/T/b). More info can be found here: https://www.jlab.org/human_resources/training/webbasedtraining <https://www.jlab.org/human_resources/training/webbasedtraining>
> PS: You can find more information on the experiment on the official website:
> https://jpsi-007.sly2j.com <https://jpsi-007.sly2j.com/>_______________________________________________
> Jpsi-007 mailing list
> Jpsi-007 at jlab.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Hallc_running