Difference between revisions of "G2p Target Minutes"

Revision as of 17:15, 17 June 2011

For the target meetings before 04/07/2011 see here

Minutes of the weekly analysis meetings

4/21/2011: Attendees: C.Keith, Ed Folts, K.Allada, J.Zhang, JP.Chen, Al Gavalya, T.Michalski, J. Pierce, M.Huang, P. Zhu, M. Cummings, C. Gu et. al
On Phone: J.Maxwell

• C. Keith:

1) Magnet cooling testing done. It wasn't a complete success. 2) Saw vacuum leaks three times. 3) Reasons for the leaks not completely understood. 4) Good: magnet works! Bad: mysterious leaks 5) At 4k everything looked fine. Will check transfer lines for next cooldown 6) All designs for 1K refrigerator complete, parts in the machine shop. Ordering some cables. 7) Cost estimate: microwave parts, inserts, refrigerator parts etc : 50K 8) Helium for future cool down : 10K

• JP Chen/Jixie/Ed Folts:

1) Jixie will talk with Chris to come up with a time and plan to do the field mapping. 2) It will probably involve survey groups help. 3) Concerned about the local beam dump delivery time 4) Talked about the power supply for the septum. 5) JP mentioned that there is money from users (Rutgers, MIT ) 6) Al will need final numbers for aperture for the the local dump. Jixie promises them by early next week. 7)

4/21/2011: Attendees: C.Keith, Ed folts, K.Allada, J.Zhang, JP.Chen, Al Gavalya, T.Michalski
On Phone: J.Maxwell

• JP Chen:

1) Reminded everyone to go through each sub-system and see if we are missing any potential issues due the target height offset (by 9cm).
2) Stressed on the importance of knowing the target field very well and mentioned about doing a field measurement in the target lab.
3) J. Zhang agreed to volunteer in setting up a simple device to measure field at few different places and cross-check with the existing map.
4) Ed mentioned that there is translation table in Hall A (originally from Hall-C) which was used earlier to do the same thing, and can be used again.
5) Mentioned about getting a short write-up ready by 28th April for the review committee.

• C. Keith:

1) The magnet is shipped to JLab and currently somewhere in the US.
2) All electronics for the 2.5T field have not been located yet(?)
3) Duke EIO is better and will minimize the swap time between 5T and 2.5T electronics.
4) Finished modifications to the gas panel, wiring for the magnet and waiting for the valves.
5) Refrigerator design is 99.9% finished.
6) James is looking into the lifting mechanism
7) Other small items are ordered (thermometer etc..)

• Al Gavalya:

1) Mentioned about the items bought/machined by collaborators (Rutgers, Israel group etc..)
2) There is 8 week delay for Tungsten
3) Al will need updated run list containing the sequence in which the runs at different settings are planned.
4) JP and Tim will provide the necessary run plan to Al.