GIF++ installation and schedule meeting

Thursday 28 Jul 2016, 08:15 → 12:40 Europe/Zurich

864/1-C02 - indisponible a partir du 24/04/2017 (CERN)

Roberto Guida (CERN)

Technical help/interventions

-All technical interventions/requests will take place on Thursday. Giuseppe will be available to follow the requests from the users.

 

-Beam:

-XTDV installation:

News after downstream XTDV installation from EN/Adrian:

From now on, a small change is introduced to the operation of the irradiator until further notice:

• Also zone PPE144 needs to be closed (not only PPE154).

This is because we will not re-establish the upstream shielding block, until the upstream XTDV is also available.

Please note, that for entering GIF you will (have to) stop the electron beam to CMS-ECAL (as it always was). So for PPE154 access, see directly with CMS control hut.

 

- Discussion for HVAC operation:

New settings:

20.5 C 45% RH

reached 21.5 56%

Humidity setting not achieved (min is 50%)

Humidity is not removed as expected. Giuseppe discuss with EN-CV-Aziz, Jerome (arrange a meeting).

 

Other works planned at EHN1 and affecting GIF operation:

1. A heavy magnet MNP22 (60T) needs to be moved inside EHN1. Several options are being considered but, for this activity it is possible that some concrete shielding blocks and some other structures in EHN1 have to be temporary removed/displaced. This can include the temporary removal during one day of part of the exhaust gas line of GIF++. This activity will happen probably in September;

2. The overhead crane rails in EHN1 should be renovated. Details are here: https://indico.cern.ch/event/549613/contributions/2240144/attachments/1309284/1958341/EHN1_rails.pdf This activity will imply one week of inactivity for the cranes in EHN1 in the area where GIF++ is located. This activity is being scheduled at the end of the beam time in the week 50 (December 2016).

 

 

Wednesday 27

detector moved to free space for beam pipe

ATL-sTGC-QS1 removed

ATL-sTGC-small moved in front of the source

 

Thursday 28

ATL-MM source scan (pm) - upstream only

 

Friday 29

short access requested by CMS-CSC

 

Wednesday August 3rd 

ATL-sTGC-QL1 will be installed in the bunker. Need to open the false floor.

upstream absorption set to 4.6 from July 28 until next Wednesday August 3rd (ATL-MM and CMS-RPC agreed).

(ATL-NSW-MM cable installation. False floor need to be open. Not urgent (needed by beginning-September)

Giuseppe to contact Zhen (ATL-NSW-MM) to inform bunker will be open: Zhen is on holiday (work will be done after test beam).  

 

Thursday August 4th

???

 

*ATL-CSC test (assign position, gas panel, ...):

Agree with Giuseppe on the routing of pipes and cables.

Position is in place of ATL-MM

Installation after August test beam

-----

-AIDA2020 funds for work at GIF:

NIcolas Zagadinis, Paolo Iengo, ATL-RPC, ... will provide possible candidates for the application.

09:00 → 09:10 Update: reference person, patrol rights and status for each setup

Please send to me the file with the update information. Please let me know also in case of no change.

ATL-CSC, ATL-NSW-sTGC test: to provide info of contact persons

09:10 → 09:50 Setups in the bunker: update size, position, new installations

Speakers: Giuseppe Pezzullo (CERN), Roberto Guida (CERN)

ATL-sTGC gif++_meeting.pdf

ATL-CSC test (assign position, gas panel, ...):

Agree with Giuseppe on the routing of pipes and cables.

Position is in place of ATL-MM

Installation after August test beam

 

ATL-NSW-sTGC:

QL1 (Israel) will arrive beg. August (2 weeks of test) installation August 3rd--> Ilia (Henso has all dimension) 

small TGC moved in front of the source 

CMS-CSC: third chamber (installed to far end of the downstream wall)

 

ATL-NSW-sTGC and MM production chambers (find best position). Need dedicated meeting second half of August.

09:50 → 10:20 Plan for next test beam period

Beam_Time_2016_07_28_v13.xlsx

Third iteration with RD51

RD51 agreed that splitting in weeks is not very convenient for them.

What would work for RD51 is probably having high intensity beam and Goliath off for 50% of the time with adjustment of the real percentage on two/three days scale if there is any.

We (RD51 & GIF) can start with the idea that Goliath and low intensity beam will be allowed every sixteen hours for max 8 hours:

8hours good for gif – 8 hours for RD51 in principle bad for gif – 8hours good for gif – 8 hours for RD51 in principle bad for gif – 8hours good for gif – 8 hours for RD51 in principle bad for gif – etc etc etc…

According to the users (on both side) we can adjust this and guarantee the 50% in two/three days time.

 

:

First discussion with RD51

I guess that we agreed that the two separate main/parasitic periods on Aug and Sept/Oct is not possible.

We will share therefore the two periods in a mode that we will define.

> correct. This is also my opinion.

ADD DOODLE LINK

 

BEAM:

It would be good if you can check and tell us if it is true what I'm writing

now:

"Any high intensity beam is fine with GIF++ if Goliath is off, i.e. high intensity muons beam in H4 with GIF++ in BEAM ON or high intensity pions beam in H4 with GIF++ in BEAM OFF (dump in) are fine."

> To my knowledge it is correct but I prefer to check with all users. I will confirm to you next Thursday. Is it ok? YES

 

GOLIATH:

Even if there is a preferred polarity, the operation in GIF++ with Goliath On is difficult.

At the end it is easier if we state like this and we can eventually later on investigate this more carefully.

> ok.

10:20 → 10:45 Plan for next wednesday (MD) / thursday (source scan)

bunker will be open August 3rd for:

CMS-RPC installation

ATL-sTGC-QL1 installation

CMS-RPC to contact Giuseppe and confirm

10:45 → 11:00 AoB

10:50 AIDA2020: support to activities at GIF

10:55 Run coordinator

Speaker: Antonio Bianchi (Universita e INFN Torino (IT))