Solid Calorimeter

info

meeting

 Agendas and Minutes of weekly meeting
meeting info in the Minutes page also

Email list

"solid_ec at jlab.org" registration and archive

the administrator is Zhiwen Zhao (zwzhao at jlab.org)

file dir

link in dropbox

https://www.dropbox.com/sh/365le2o93vpn14e/4DLnKV_lN-

upload files to /u/group/halla/www/hallaweb/html/12GeV/SoLID/download/ec

they show up at http://hallaweb.jlab.org/12GeV/SoLID/download/ec/

Dimension and Layout

• limitation

 Fluxreturn space radius 90 - 270cm
 crystat radius 0 - 144cm

• dimension

 PVDIS FAEC radius 96 - 262cm
 SIDIS FAEC radius 96 - 262cm
 SIDIS LAEC radius 92 - 140cm

• note
  • 0. the inner radius of fluxreturn could be reduced to 85cm later
  • 1. The radius for LAEC and FAEC are just the range of minimum acceptance we want to cover. The actual physical size can be larger, but it's limited by available spaces.
  • 2. the FAEC supporting structure is share between SIDIS and PVDIS experiments. While SIDIS needs from 96cm - 230cm and PVDIS needs 110cm - 262cm, the overall need is 96 - 262cm.
  • 3. SIDIS FAEC needs to move upsteam 85cm to become PVDIS FAEC, so the supporting structure needs to allow the movement. Note at the before and after locations, the endcap nose shape changes. It's a concern if the supporting structure is connected to the endcap nose. If the supporting is only connected to the endcap donut (15cm thick iron), not the endcap nose, it won't be a concern any more.
  • 4. LAEC needs to support on its own without putting force on cryostat and its supporting may need to share with GEM to stay within the limited space inside the solenoid.
  • 5. The LAEC 92cm is the limit for the 100cm2 size module only. Below that, we need to put in smaller size modules to fill the triangle area as much as possible, but not cross the hypotenuse line at 14.85 degree.

weight

assume 44 long and length ratio Pb:Sc=1:3 shower, 100*44*(0.75*1.032+0.25*11.34)=16kg

assume 2 radiation length lead 1.12cm and 2cm Sci preshower, 100*1.12*11.34+100*2*1.032=1.5kg

assume everything else, like wrapping, rod etc is about 2.5kg

total module weight about 20kg each

talks and notes

2012_01_06 Jlab Physics Division Brain Storm Session by Xiaochao Zheng pdf

2011_12_09 meet with W&M and talk about general and beam test plan

2011_11_09 EC longitudinal segmentation option at weekly meeting

2011_10 collaboration meeting by Mehdi Meziane

2011_09_30 Jlab Physics Division Brain Storm Session by Jin Huang

2011_09_21 Update by Mehdi Meziane

2011_06 collaboration meeting by Zhiwen Zhao for forwardangle Calor

2011_06 collaboration meeting by Jin Huang for largeangle Calor

2011_03 collaboration meeting by Zhiwen Zhao for forwardangle Calor

2011_03 collaboration meeting by Jin Huang for largeangle Calor

previous pages (some info outdated)

Forward Calorimeter

Largeangle Calorimeter

Other ECAL

• LHCb
  • local files https://www.dropbox.com/sh/365le2o93vpn14e/g_v9IHvaLF/other_calorimeter/LHCb
  • some links
    • NIM overview paper
    • Calo group
    • TDR
    • TDR supporting notes

• KOPIO
  • KOPIO NIM paper