Aggregator
Check feasibility of 500 MeV/linac with shunt resistor plates
BSList 120394
Downloaded 500 MeV setpoints
Cycled box supplies
The same shunts are out of range or mismatching as for the 475 MeV setpoints, with exception of Arc 2, which only has MXK2S05 out of range
Test owner recommends we move on to 605 MeV/linac
Box Supplies Were Cycled
The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 5.575 A/s
ARC2A Ramp Rate = 6.698 A/s
ARC3A Ramp Rate = 9.395 A/s
ARC4A Ramp Rate = 10.903 A/s
ARC5A Ramp Rate = 9.721 A/s
ARC6A Ramp Rate = 9.426 A/s
ARC7A Ramp Rate = 10.022 A/s
ARC8A Ramp Rate = 12.088 A/s
ARC9A Ramp Rate = 9.071 A/s
ARCAA Ramp Rate = 12.127 A/s
LAM1C Ramp Rate = 9.545 A/s
LAM3C Ramp Rate = 9.549 A/s
RSEP8A Ramp Rate = 10.696 A/s
RSEP9A Ramp Rate = 6.833 A/s
XSEP2T Ramp Rate = 5.641 A/s
XSEP4T Ramp Rate = 5.285 A/s
XSEP6T Ramp Rate = 9.266 A/s
XSEP8T
COMMENT ON check feasibility of 550 MeV/linac with shunt resistor plates
Autolog restore
Autolog save
Check feasibility of 475 MeV/linac with shunt resistor plates
BSList 120394 continuation
Loaded dipoles_at_475_per_linac.snap or dipoles_at_550_per_linac_no_YAs.snap
Cycled box supplies
Arc 2, 3, 7 and 8 all have multiple shunts out of range.
Specifically Arc 2 shunts are out of range for 475 MeV which were fine for 550 MeV
Test plan owner recommended we move on to 500 MeV
Box Supplies Were Cycled
The following box supplies were CYCLED by version 2-16 of the Box Supply Cycling Script:
ARC1A Ramp Rate = 7.845 A/s
ARC2A Ramp Rate = 6.906 A/s
ARC3A Ramp Rate = 9.274 A/s
ARC4A Ramp Rate = 10.343 A/s
ARC5A Ramp Rate = 9.686 A/s
ARC6A Ramp Rate = 9.305 A/s
ARC7A Ramp Rate = 9.509 A/s
ARC8A Ramp Rate = 11.472 A/s
ARC9A Ramp Rate = 6.855 A/s
ARCAA Ramp Rate = 12.228 A/s
LAM1C Ramp Rate = 9.009 A/s
LAM3C Ramp Rate = 9.013 A/s
RSEP8A Ramp Rate = 10.696 A/s
RSEP9A Ramp Rate = 6.833 A/s
XSEP2T Ramp Rate = 5.678 A/s
XSEP4T Ramp Rate = 5.308 A/s
XSEP6T Ramp Rate = 8.788 A/s
XSEP8T R
COMMENT ON check feasibility of 550 MeV/linac with shunt resistor plates
Autolog restore
Check feasibility of 550 MeV/linac with shunt resistor plates
BSList 120394
At the start, all box supplies were off. Performed allsave.
Turned on and cycled all Arc, RSep, XSep and LAM box supplies.
Fig. 1 - Arc 8 MXXAS05, MXXAT01, and MXXAR01 are out of range and mismatching.
Test plan owner requested that we not dwell at 550 MeV setpoints, and move on to 475 MeV.
COMMENT ON Flush Arc5 JC and Arc9 JA Dipoles
Flushing of Arc's 5 & 9 is now on hold. CHL 2 crash is expected to cause SAM 26 to start early. No flushing of arc dipoles will begin until LCW system issues are resolved and corrective action taken.
If operability concurs this ATLis can be completed and will be replaces by new to cover whatever we are requested to do in the way of East Arc flushing.










