Revision as of 11:50, 18 February 2016

Introduction

This is page is collection of study using SoLID software

the code are at https://jlabsvn.jlab.org/svnroot/solid/study/

timeline and milestone (as 2016/02)

tentative ?????

• EC new response (Rakitha)
  • PVDIS by March
  • SIDIS by May

• EC old response wrapper (Yuxiang) by March

• LGC trigger response (Micheal) by March

• SPD and MRPC trigger response (Yuxiang) by April

• PVDIS e trigger by April

• SIDIS e and hadron trigger by May

• GEM related (Weizhi)
  • PVDIS and SIDIS GEM Digitization and Occupancy by May
  • tracking update by August

full simulation and file sharing (Zhiwen)

We will run full simulation with all subsystems and generate various files at a shared central location

They can used for studies like trigger, background, GEM etc and ensure consistent results

file sharing location

(/home/zwzhao/work_halla is a link to /w/work6501/zwzhao)
/home/zwzhao/work_halla/solid/solid_svn/solid/study/background/PVDIS_LD2_JLAB_VERSION_1.2
/home/zwzhao/work_halla/solid/solid_svn/solid/study/background/SIDIS_He3_JLAB_VERSION_1.2
/home/zwzhao/work_halla/solid/solid_svn/solid/study/background/JPsi_LH2_JLAB_VERSION_1.2
Currently finished some files without LGC as 2016/01/21

list of study

Generator

new electron generator combining both DIS and resonance region with existing code (?)

new hadron generator (Rakitha)

Trigger

GEM related

GEM digitization validation(?)

Extract information from

1. some cosmic or beam test with charge particles
2. the latest UVa xray test result (p13 of here) 

This is to provide input for digitization, including energy threshold (Solid_GEM_Digitization#GEM_response), cluster width, avalanche charge, efficiency for both charge particle, and efficiency for low energy photons which dominates the background in SoLID, and more.

SoLID GEM digitization is based on the SBS GEM digitization

According to Evaristo, the SBS GEM digitization is "Unfortunately not validated; we used the old COMPASS data to validate the digitization"

Maybe the way to extract some information is do standalone GEM simulations matching test?

Digitization (Weizhi,Ole,Rich,Seamus)

Occupancy (Weizhi,Seamus,Alex)

Tracking (Weizhi and Ole)

neutron background (Lorenzo)

with low neutron physics on, comparing to Fluka result

acceptance (Zhiwen and Kalyan)

previous Study

Compare to geant3 result

rate and background

pi e Ratio

Figure of Merit for baffle designs

SIDIS/PVDIS Cherenkov