Project

Meetings

1st Monday in the month at 2 pm

• Topic: IR non collaboration specific topics
• ZOOM: https://bnl.zoomgov.com/j/1616690483?pwd=UndKZDk5ekZISEJWVFVEbW9KMXZNQT09Meeting ID: 161 669 0483 Passcode: 127333
• Indigo: https://indico.bnl.gov/category/284/
• EMAIL-List: eicug-yr-detector-forward-ir@eicug.org

Costing

• The supporting material for the costing of the detector can be found here
• This document describes the schedule constrain for installing the detector and such has impact on the production schedule

Experimental Equipment

Interaction Region

• Information on the B0 space constrains for detectors to be integrated in B0
• IR at IP6 Layout (July 1, 2021) this layout shows the IP at IR-6 with a right handed coordinate system
• Status of IR-6 (0.5 meter shift), IR8, and coord. systems (July 1, 2021)
• The Information to simulate the IR with the 0.5 m shift can be found here please realize the Synchrotron radiation info is also posted under this links

Magnet

• September 2021 Field map with Solenoid shift by 25 cm in negative direction
  • Field Map
  • Description of Field Map
  • Supporting info pptx
• Field map for the std solenoid design:
  • Cartesian Coordinates Field Map
  • Radial Coordinates Field Map
  • Info to Field Map
  • Material budget for the solenoid
• Field map for the solenoid in a Helmholtz design
  • Radial Coordinates Field Map
  • Info to Field Map
  • Material budget for the Helmholtz design solenoid

Detector Layout

If you go to the following page you get all the sketchup Information for Athena. Under Advance Release - Baseline Dimensions for Proto Collaborations you find a pdf, which has all the baseline info for both integration models. One with the DIRC readout towards the hadron endcap (Sketchup) and one with the alternative integration with the DIRC readout at the electron endcap (Sketchup). Looking to the facility layout one can obtain the outer bounderies for the detector

• Maximum outer radius: 3.2 m to avoid interference with the RCS
• Maximum inner radius: 1.6 m
• total length of the detector: 9.5 m with 5m in the outgoing hadron direction and 4.5 m in the outgoing lepton direction

Backgrounds and Radiation

• Neutron fluence This fluxes correspond to a ep luminosity of 45 nb. If one wants to see the neutron rate for an integrated lumi of 1 fb^-1 one needs to multiply by 22222