FAQ view
Subject: RE: Vibration measurements ISOLDE
Dear colleagues,
The ISOLDE seismic station is now fully operational. Thanks to all people who involved for the installation and a special thanks to Elena/Cedric for the web / NXCALS interface.
Please find below some details :
- The throughput data can be visible with the following interface Ground Motion Seismic stations (cern.ch) in comparison with the other CERN seismic stations (Pt1, Pt5 and surface). The throughput data are saved on our server;
- Comparing to the Pt1, Pt5 and surface seismic stations, the ISOLDE seismic station is not
Excel file containing the GLM-GHM deflector settings to run with neighboring masses in GPS/GLM/GHM.
Please note that these settings work well if the “Difference” (with the central mass) is less than 5%.
DeflectorsGLM-GHM (eos/project/i/isolde-operation/www/DeflectorsGLM-GHM.xlsx)
In case of target and/or line tripped. Open Workingsets (Separators –> Front-End)
YGPS.TARGET-HEAT and/or YGPS.LINE-HEAT set to 0.
Open target heating application, set final value, and start
Restarted electron gun following FW steps: 1- Electron Gun Voltage set to 0V 2- Ramped down the Filament Current to 5 A 3- Restarted Electron Gun Voltage back to -5900 V 4- Ramped up the Filament Current 6.95 A https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/3815533
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REXTRAP refilling: Cut proton request 1/TRAP put in safe mod:(Going down) Load 0 files High tension set to 0 Vacuum valves closed
2/TRAP refilled – TRAP turned on HT platform Electrodes on Eqp Array loaded
Note from FW Don’t switch off and on the buffer gas pressure for REXTRAP when Julien is filling, just leave it on. You can however go down with the value in case the trap isn’t in use for longer periods (a few days).
I notice that all voltages of REXTRAP are applied, without any gas being present. Please, don’t do it like that but follow this order:
From scratch: 1. switch on
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The best practice, in case of HT tripped when protons heat the target, is to reboot cfx-170-mkishtim (from ccm, go to CO Diag, go to Diam consol and look for the cfx-170-mkishtim .) https://confluence.cern.ch/display/ABT/ISOLDE+60kV+modulator
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I include the entry in the logbook, that specifies the position for the slits, for the Ag run.
It is advised that we should first touch the Left switch on both slits and then try to move them in and cut the contaminants.
For YHRS.TCS.6750_LEFT the position to touch the LEFT switch is -25mm
For YHRS.TCS.6750_RIGHT the position to touch the LEFT switch is +25mm
As seen here:
In case they get stuck, either call C. Mitifiot during working hours
You are receiving this email because you are member of a user e-group for accessing the ISOLDE Vacuum Control applications and you do not have a “SCADA ID”. If you want to keep your access please subscribe to the service “WinCC-OA Scada (Pvss)” in your service account web page ( https://account.cern.ch/account/Services/MyServices.aspx) :
CERNBOX project = Isolde-operation
CERNBox Isoldeop _ https://cernbox.cern.ch/index.php/apps/files/?dir=/__myprojects/isolde-operation&
service account Isolde.operation@cern.ch Login: isoldeop password: Lefteris’ pssword
The project isolde-operation now has 1TB at /eos/project/i/isolde-operation/ (this is accessible on lxplus)
The service account, isoldeop, is a member of cernbox-project-isolde-operation-admins (or be-dep-op-iso)
The following 2 folders are pre-created :
– /eos/project/i/isolde-operation/www/ (folder for hosting an EOS-site-type website)
– /eos/project/i/isolde
At the start of each year, the lines to both the GPS and the HRS targets has to be set up and the steering optimized such that the beam is well centered on the two targets.
https://wikis.cern.ch/display/PSBOP/ISOLDE+Semgrid+target+tests
https://be-op-logbook.web.cern.ch/elogbook-server/GET/showEventInLogbook/3162241
31/05/2021
GPS Measurements performed using the new movable SEMGRID target placed on the GPS front end and fix SEMIGRIDS in the BTY line.
https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/3311941
07/06/2021
HRS Measurements performed using the new movable SEMGRID
From: Lukasz Burdzanowski lukasz.burdzanowskiatcern.ch>
Cc: inca-support (Expert list for InCA support) inca-supportatcern.ch>; Controls Configuration Support controls-configuration.supportatcern.ch>
There are 3 ways of checking this information.
- By browsing device details, i.e.: https://ccde.cern.ch/api/devices/name/RPACZ.170.XT00.RQ.0850
- By checking RBAC Device Group report in CCDE Data Browser: https://ccde.cern.ch/dataBrowser
Source https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/3723051
To send the beam to GLM:
- YGPS.BFC4900 should be OUT
- YGHM.ZDP.0100= 185mm (OUT)
- YGLM.ZDP.0100= 418mm (IN)
To send the beam to GHM:
- YGPS.BFC4900 should be OUT
- YGLM.ZDP.0100= 218mm (OUT)
- YGHM.ZDP.0100= 385mm (IN)
Nota bene
huge risk of collision between GLM and GHM or with the faraday cup…. Please don’t touch the chassis (power ON/OFF or the PLC) because of the lost of the reference. This is very dangerous.
In case of steps lost, call me or the piquet service after hours (78840).
Both axes are
14/08/2018 09:10
Procedure to use the stripping foils for 12C4+ to 12C6+
(more beam due to the higher charge state)
Insert Foil.
verify thre is beam.
move foil position both sides to verify that it is centered.
verify with the scanning slits that the beam is centered.
http://elogbook.cern.ch/eLogbook/event_viewer.jsp?eventId=2634614
/EF/JAR/ES
IHS rack open loop
1. Module feedback control Put the selector to Open loop (right position).
2. Put the selector to Open loop (right position)
3. Ramp with potentiometer, until the oscilloscope cursor.
4. Directly go to Closed loop remote(left position).
5. DO NOT stay in the middle position (local Open loop).
6. Put on the preamplifier
9GAP rack open loop
!!! HINT FOR 9GAP RESTART!!!!
About IHS 20/07/2023 https://logbook.cern.ch/elogbook-server/GET/showEventInLogbook/3806789
from REMUS consol . Start a remote desktop connection cerntsremus.cern.ch
1/ /mcr/bin/rdesktop
2/ /usr/bin/xfreerdp -d CERN -u adeop -g 1200×1000 yeccp21‐cps.cern.ch &
3/ rdesktop ‐u adeop ‐d cern ‐g 1200×1000 ‐a 16 yeccp21‐cps.cern.ch &
4/remmina command /ISOLDEOP-Workspace/SiteAssets/Lists/FAQ/AllItems/remmina.jpg
1 Go to any operation console
2 Open a console a type “Remmina”. (right click –> Tools –> Remmina)This will start a remote desktop application.
3. Type yeccp22-cps
3 a remote connection called “Safety chain” has been created. Double click on it and wait. Keep on waiting for a while without touching anything 
Open the app Rex EBIS control and you have to put the Synchronisation in mode Alone and in few steps of 3 minutes to set 1000 (1Hz). Exmple we ar in Rep. rate at 25Hz (40) we have to pass to 10Hz (100), then to 33Hz(300), then 1 Hz (1000). Then go in the room 170 1-020 and swictch central timing in local. see picture
Desynchronize/synchronise REXEBIS with Linac
RFQ Picture Rack button
VPC Centos7 CC7 Virtual Machine User Manual 2019 and Machine List
How to connect from home with images
cerntsnew
cerntsen (machine sur le TN accessbile depuis cernts )
https://cern.service-now.com/service-portal/article.do?n=KB0005102
Linux CC7 VPC
Accessing remotely
https://espace.cern.ch/winservices-help/Terminal%20Services/FAQ/Pages/Accessing%20remotely%20your%20Windows%20Desktop%20via%20SSH.aspx
Link to download
https://tigervnc.org/
PUTTY
https://www.putty.org/