Summary of SBS Collaboration Meeting

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19 Οκτ 2013 (πριν από 4 χρόνια και 2 μήνες)

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Summary of SBS Collaboration Meeting

Bob Michaels Oct 19, 2012


Thia

Keppel





John
LeRose













From Management



Hall A beam in ~1.5 years.



Probably not affected by re
-
baselining



Run schedule presented



SBS


in 2016 (likely Fall)



Support for Magnet, He3 Target, GEM prototyping at
UVa



Program Start: Oct 1, 2012



Milestones and Funding discussed



DOE reports: monthly email, quarterly written report,



yearly external review

Talks about SBS Experiments

G
E
n

Gordon Cates

G
M
n

Brian Quinn

G
E
p

Bogdan

Wojtsekhowski

Proton FF

Neutron FF


Adam
Sarty

--

Coordinate Detector





Seamus Riordan
--

Monte Carlo













Technical Updates
--

I



In front of calorimeter



1 mm and 1
nsec

resolution.



Present plan: 2 GEMs + 3
rd

plane
scintillator

(Canadian funding)



600 PMTs from
FermiLab

being tested




Neural Network Resolution Study:
dp
/p = 1.7%



Rates and Acceptance Studies



All consistent with proposals



Bob comment: more joint effort on MC ? (and don’t forget





analysis software)


Susan
Esp

--

BB Detector Engineering



Huan

Yao
--

BB Cerenkov (GRINCH)





John
Annand

--

BB
Hodoscope
, NINO
Discr
.












Technical Updates
--

II



Detailed design, well in progress





Simulation and design
--

ongoing.



Start building in early 2013



Discussed: Tank, window, mirror, PMT array, electron efficiency …




Design, construction



Report on tests with
cosmics



Evaristo

Cisbani

--

INFN GEM Front Tracker





Nilanga

Liyanage

--

GEM Trackers for
Polarim
.













Technical Updates
--

III



Huge Italian effort



Large area chamber (40 x 50 cm
2

)



Reported on beam tests at DESY and CERN





GEM Lab at
UVa

Set Up. Great progress.



Will build 40 modules (50 x 50 cm
2

)



Testing of prototypes underway



Finalizing the design


Gregg Franklin
--

HCAL





Charles
Perdrisat

--

New Cal
(for
G
E
p

)













Technical Updates
--

IV



The design is progressing



Plans for
protytping



Reported on Geant4 simulations of energy and spatial resolution,

timing, and light transmission in WLS





Showed advantage of a new calorimeter to withstand high radiation



Lead +
scintillator

plates (
Shahililk

design )



Possibility to use HERA
-
B calorimeter being explored



Will test 40
Shashilik

modules from HERA
-
B


Gordon Cates
--

3
He Target





Fast DAQ
--

Alexandre

Camsonne













Technical Updates
--

V



Aim: 60% at 60
uA

for 60 cm target at 12
atm

!



Innovations: Convection cells, double pumping chamber,

barrel magnet, and (future) metal end
-
caps or all
-
metal







chambers.



Reported on simulated in
-
beam tests of prototype and


progress on designs





Making
Fastbus

Faster ! And to use new CODA 3 elements



New Test Stand in TEDF



Beginning tests of the “
module flipping
” (to reduce DT),

new CODA3 TI (supports event blocking), and

MQT (allows to use TDCs instead of ADCs), Intel CPU.



Robin Wines
--

SBS Magnet and Support

















Technical Updates
--

VI



The Heart of SBS



48D48 magnet from BNL.



Good progress on engineering and CAD design of support




Todd
Averett

--

A1n






Bogdan

Wojtsekhowski

--

Wide Angle







Compton Scattering

















More On Experiments



A “flagship” 12
GeV

Experiment



The experiment and plans for preparation were described






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