Draft Minutes: March 1996 CMS Week HCAL Meetings
Date: Tue, 30 Apr 96 17:21:39 SET
From: MARICA@cernvm.cern.ch
Subject: Draft Minutes for March CMS Week HCAL meetings
Dear Colleagues:
I enclose a draft of the minutes of the HCAL meetings for the
March '96 CMS week.
Please send comments and recommendations of any changes to
"skuja@umdhep.umd.edu" or "skuja@vxcern.cern.ch"
Andris Skuja
CMS HCAL IB Chair
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CMS HB/HF meeting -- March 9, 1996
Minutes (Draft)
===================================
Please send comments/corrections to
vxcern::skuja or skuja@umdhep.umd.edu
1. HCAL geometry options were presented by M. Murbach
2. V. Genchev presented a very detailed summary of simulation results
for 8 different HB/HF/ECAL layouts. Dr. Genchev indicated a slight
preference for the large endcap option with a hermetic ECAL.
3. A. Uzunian presented a summary of recent radiation background
calculations that indicated that MF1 would be exposed to
increased radiation under the "Long Barrel" option.
4. A lively discussion followed in which no consensus was reached to
change the HCAL geometry from the "Long Barrel" option. However,
a number of radiation calculations were requested from A. Uzunian.
5. Dick Loveless summarized the status of the mechanical design of EMU.
Possible tailcatcher scintillator locations were investigated.
CMS HB/HF meeting -- March 10, 1996
Minutes (Draft)
===================================
Please send comments/corrections to
vxcern::skuja or skuja@umdhep.umd.edu
Present: Banerjee (Bombay),
Bencze (CERN/Budapest),
Golutvin(JINR, Dubna), Malakhov(JINR, Dubna), Tyukov(JINR, Dubna),
Volodko (JINR, Dubna), Zarubin(JINR, Dubna)
Winn(Fairfield)
Elias(Fermilab), Freeman(Fermilab), Green(Fermilab),
Hanlon (Fermilab),
Hagopian(Florida State), Herring(Florida State),
Johnson(Florida State),
Shumeiko (NCPHEP, Minsk)
Akchurin (U. of Iowa),
Sorokin (KFTI, Kharkov),
Seez (Imperial College, London),
Khan (CIEMAT, Madrid)
Kunori(Maryland), Murbach(Maryland), Skuja (Maryland),
Bolotov (INR,Moscow),
Abramov(IHEP, Protvino), Kryshkin(IHEP, Protvino),
Obraztsov(IHEP, Protvino), Surkov(IHEP, Protvino),
Genchev (INRNE, Sofia),
Overview:
1. The minutes for CMS week at CERN during December '95 were accepted
2. Freeman presented the present status of the HB design and
test beam work
3. The status of the HF Project was presented by Kryshkin
4. Volod'ko presented an experimental study of scintillator reponse in
magnetic fields to various cherged particle types.
5. Tyukov presented experimental results of the influence of dead zones
on calorimeter resolution.
6. Abramov presented a study of the performance of the CMS Endcap HCAL
in the presence of noise in ECAL
Mechanical:
7. Freeman presented the status of the HCAL/Muon and HCAL/ECAL
interface studies.
Calibration:
8. Akchurin presented the status of the HB calibration system.
9. Kryshkin presented the status of the HF calibration system.
Electronics/Photodetectors/Slow controls
10. The status of the HCAL electronics and photodetetectors
was reported by Elias.
11. Status of slow controls work at CERN was presented by F. Perriolet
Scintillator
12. An experimental study of Radiation damage/attenuation length
studies of Kharkov scintillator was presented by Hagopian.
13. Sorokin also presented a study of Kharkov injection molded
scintillator and tiles/fibers.
14. A discussion followed on the appropriateness of various scintillators
for the HCAL megatiles.
Simulation
15. Uzunian presented a summary of radiation backgrounds in HCAL
16. Fyziak presented the effect and sources of Radiation backgrounds
in EMU.
17. Status of HB simulation work in the US was presented by Kunori
Summary
18. The Status of the HCAL project was presented by Green.
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CMS HCAL Engineering meeting -- March 11, 1995 (morning)
Minutes (Draft)
==================================
Please send comments/corrections to
vxcern::skuja or skuja@umdhep.umd.edu
Assembly/Installation/etc.
1. Veillet presented the present status of the CERN installation plan
2. Murbach presented the present status of the Assembly/Installation
fixtures design
3. The HB Mechanical Design status was presented by Freeman
4. The HF Assembly and Installation status was presented by Surkov
5. HV assembly/installation issues were presented by Akchurin
Cables/Patch panels/Services
6. R. Pintus presented the status of cable and services layout.
7. Extensive and heated discussion followed on the size of the
HB/HF gap and the routing of cables, etc. through it.
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CMS HCAL IB meeting -- March 11, 1996 (afternoon)
Minutes (Draft)
==================================
Please send comments/corrections to
vxcern::skuja or skuja@umdhep.umd.edu
1. Dan Green announced the results of the recent election of CMS HCAL IB
officers (Skuja-Chair/Volodko-Deputy Chair)
2. A. Volodko requested that a statement on the independence of the
regional IB's be inserted in the HCAL constitution. Skuja pointed out
that such a statement was possible as long as it did not violate
the spirit of the present constitution. In particular it is the
reponsibility of the CMS HCAL IB as a whole to ensure the viability
of HCAL design and construction. The exact wording of a possible
statement on regional IB's will be studied.
3. The IB agreed that V. Kryshkin would provide a set of guidelines to the
HCAL project manager (Green) on the scintillator choice for HF.
4. The HCAL IB approved the following conference talks:
San Miniato (Tuscany,Italy): May 21-24
The CMS Hadron Calorimeter: Howard Budd (Rochester, USA)
Frascati, Italy: June 8-14
CMS Central Calorimeter: Jim Freeman (Fermilab,USA)
CMS Quartz Fiber Calorimetry: V. Gavrilov (ITEP, Moscow, Russia)
Simulation of the CMS Hadron Calorimeter: V. Genchev
(INRE, Sofia, Bulgaria)
Experimental results on charged particle detection by
scintillator in Magnetic Field: A. Volodko (JINR, Dubna, Russia)
and V. Kryshkin (IHEP, Protvino)
Beaune, France: June 24-29
The CMS Hadron Calorimeter: J. Elias (FNAL, Batavia, USA)
Warsaw, Poland: July 25-31
The CMS Hadron Calorimeter: A. Skuja (Maryland,USA)
Como, Italy: October
CMS Central Calorimeter: Vasken Hagopian (Florida State,USA)
CMS Quartz Fiber Calorimetry: N. Akchurin (Iowa,USA)
______________________________________________________________________________
CMS ECAL/HCAL meeting -- March 12, 1995
Minutes (Draft)
==========================================
Please send comments/corrections to
vxcern::skuja or skuja@umdhep.umd.edu
Present: Schmitz (RWTH, Aachen),
Banerjee (Bombay),
Baillon (CERN), Barney (CERN), Bloch (CERN).
Denegri (CERN/Saclay), Faber (CERN/ETH),
Ingenito (ETH-Z, CERN), Lecoq (CERN), Loos (CERN),
Pintus (CERN), Radermacher (CERN),
Volodko (JINR, Dubna)
Elias(Fermilab), Freeman(Fermilab), Green(Fermilab),
Hanlon (Fermilab), Womersley(Fermilab)
Hagopian(Florida State), Herring(Florida State),
Johnson(Florida State),
Davies(IC,London), Seez (Imperial College, London),
Kunori(Maryland), Murbach(Maryland), Skuja (Maryland),
Bolotov (INR,Moscow), Musienko (INR,Moscow),
Denes (Princeton),
Ayranov (PSI), Renker (PSI)
Abramov(IHEP, Protvino), Katchanov(IHEP, Protvino),
Kryshkin(IHEP, Protvino), Surkov(IHEP, Protvino),
Cockerill (RAL),
Faure(Saclay), Lewis (Saclay), Rosowsky(Saclay)
Genchev (INRNE, Sofia),
Mo(VPI)
Viertel(ETH, Zurich)
(Agenda arranged by J.-L. Faure)
1. Status of the ECAL Barrel mechanical engineering design was
presented by Lebeau.
2. ECAL Cooling requirements and a preliminary design of a water
cooling system were presented by Baillon
3. An overview of the ECAL electronics and cable layout was presented
by P. Denes
4. D. Cockerill presented a series of options for a hermetic ECAL
5. D. Green presented the physics implications of "dead" material
and cable/service gaps. In particular the ability of CMS to
perform effective SUSY searches requires the minimization of both.
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CMS HCAL HV meeting -- March 12, 1995 (afternoon)
Minutes (Draft)
==========================================
(organized by A. Ferrando)
______________________________________________________________________________
CMS HCAL/Muon Interface meeting -- March 13, 1996 (morning)
Minutes (Draft)
==========================================
Please send comments/corrections to
vxcern::skuja or skuja@umdhep.umd.edu
(organized by F. Gasparini)
1. Discussions were held on the geometric location of the HCAL tailcatcher
In particular the muon group agreed to study the size of the first RPC
package so that space could be left for the tailcatcher scintillator.
2. Radiation backgrounds caused by HV were discussed. To ensure good
acceptance for the SUSY search, the HV has been extended to an eta of 5.