Star-fst-l mailing list

["Ye, Zhenyu" <yezhenyu AT uic.edu>]

I have asked Xu to double check but according to my record, we (FST) have 
3 spare ISEG HV modules, I think two of them have an issue. 

Zhenyu

> On Jan 5, 2022, at 1:02 PM, videbaek <videbaek AT bnl.gov> wrote:
> 
> Hi Elke,
> 
> The ISEG modules are from the IST and the rack on the west side on the last 
> row
> on the south the platform
> 
> -F
> 
> 
> On 2022-01-05 13:46, Aschenauer Elke-Caroline wrote:
>> Dear Xu,
>> concerning the HV / ISEG HV module trip.
>> We have currently radiation problems in STAR quite some modules behave
>> strangely due due to single bupsets.
>> Can you remind me where this module sits physically. Is this a new
>> module we bought for the FST or is it one we recycled from the IST.
>> Thanks elke
>>> On Jan 5, 2022, at 11:48, Xu Sun <sunxuhit AT gmail.com> wrote:
>>> Hi All,
>>> We refilled the coolant tank for FST this morning during the access.
>>> The tank level now is 78% after stabilized, which is the same level
>>> as last refill.
>>> The coolant should be good for another two months.
>>> Since yesterday, multiple FST HV trips have happened during the day
>>> shifts.
>>> I watched the evening shift to try to diagnose.
>>> Two HV trips since the start of yesterday's evening shift.
>>> 1st at 17:57: module 5, 6, 7, 8 on RDO 5 and RDO 6 tripped at the
>>> same time. Since all 4 modules belong to the same ISEG module, it
>>> seems like the whole ISEG module HV tripped.
>>> 2nd at 20:!2: module 9, 10, 11, 12 on RDO 4 tripped at the same
>>> time. And those 4 modules are also on the same ISEG HV module.
>>> No trip happened since then.
>>> It seems like to me the trip is from the ISEG HV module, not the FST
>>> module.
>>> We will keep monitoring the status and keep you updated.
>>> Best,
>>> Xu
>>> _______________________________________________
>>> Star-fst-l mailing list
>>> Star-fst-l AT lists.bnl.gov
>>> https://urldefense.com/v3/__https://nam04.safelinks.protection.outlook.com/?url=https*3A*2F*2Flists.bnl.gov*2Fmailman*2Flistinfo*2Fstar-fst-l&amp;data=04*7C01*7Cyezhenyu*40uic.edu*7C575198dcd62a4c4b6cd608d9d07df7eb*7Ce202cd477a564baa99e3e3b71a7c77dd*7C0*7C0*7C637770061735637064*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000&amp;sdata=oC7uDkdI38sOEC73HJUBHGXQEXSSG5uOqzCuHdYGcgI*3D&amp;reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJQ!!P4SdNyxKAPE!Sdvw7-Kx6ie4r6aaG4a55Q76SG6r-Al8KcECUk9m91sZ_UrHba2n56aFGrx1_StwriUOib8$
>>>  
>> _Note: Please do not feel obligated to respond to this message outside
>> of your work hours._
>> ( `,_' )+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-
>>  )    `\                                                      +
>> /    '. |        Elke-Caroline Aschenauer  (she/her/hers)      =
>> |       `,                                                      -
>>  \,_  `-/        Brookhaven National Lab                         +
>>  ,&&&&&V         Physics Dept.,            25 Corona Road         =
>> ,&&&&&&&&:       Bldg. 510 /2-195          Rocky Point, NY,        -
>> ,&&&&&&&&&&;      20 Pennsylvania Avenue                 11778       +
>> |  |&&&&&&&;\     Upton, NY 11973
>> =
>> |  |       :_) _  Tel.:  001-631-344-4769   Tel.:   +1-631-569-4290
>> -
>> |  |       ;--' |                           Cell-USA:  +1-757-2565224
>> +
>> '--'   `-.--.   |                           Cell-Europe:
>> +49152220025211 =
>>   \_    |  |—‘
>>       -
>>     `-._\__/     Mail: elke AT bnl.gov        elke.caroline AT me.com
>>    +
>> +=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=-+=
>> _______________________________________________
>> Star-fst-l mailing list
>> Star-fst-l AT lists.bnl.gov
>> https://urldefense.com/v3/__https://nam04.safelinks.protection.outlook.com/?url=https*3A*2F*2Flists.bnl.gov*2Fmailman*2Flistinfo*2Fstar-fst-l&amp;data=04*7C01*7Cyezhenyu*40uic.edu*7C575198dcd62a4c4b6cd608d9d07df7eb*7Ce202cd477a564baa99e3e3b71a7c77dd*7C0*7C0*7C637770061735793280*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000&amp;sdata=22QehmOASipS7x65xSOvUWI1kLtAeq5J*2FNDjsgZXV7w*3D&amp;reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!P4SdNyxKAPE!Sdvw7-Kx6ie4r6aaG4a55Q76SG6r-Al8KcECUk9m91sZ_UrHba2n56aFGrx1_StwdyajqwU$
>>  
> 
> -- 
> Flemming Videbaek
> senior scientist
> videbaek @ bnl.gov
> Brookhaven National Lab
> Physics Department
> Bldg 510D
> Upton, NY 11973
> 
> phone: 631-344-4106
> cell     :  631-681-1596
> _______________________________________________
> Star-fst-l mailing list
> Star-fst-l AT lists.bnl.gov
> https://urldefense.com/v3/__https://nam04.safelinks.protection.outlook.com/?url=https*3A*2F*2Flists.bnl.gov*2Fmailman*2Flistinfo*2Fstar-fst-l&amp;data=04*7C01*7Cyezhenyu*40uic.edu*7C575198dcd62a4c4b6cd608d9d07df7eb*7Ce202cd477a564baa99e3e3b71a7c77dd*7C0*7C0*7C637770061735793280*7CUnknown*7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0*3D*7C3000&amp;sdata=22QehmOASipS7x65xSOvUWI1kLtAeq5J*2FNDjsgZXV7w*3D&amp;reserved=0__;JSUlJSUlJSUlJSUlJSUlJSUlJSU!!P4SdNyxKAPE!Sdvw7-Kx6ie4r6aaG4a55Q76SG6r-Al8KcECUk9m91sZ_UrHba2n56aFGrx1_StwdyajqwU$
>