TOFPID

Work-In-Progress

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EPIC TOF PID Detector Working Group

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Conveners:

• Constantin Loizides (constantin.loizides@cern.ch)
• Frank Geurts (geurts@rice.edu)
• Wei Li (wl33@rice.edu)
• Zhenyu Ye (yezhenyu@uic.edu)

Liaisons:

• Simulation: Nicolas Schmidt (nicolas.schmidt@cern.ch)
• DAQ: Tonko Ljubicic (tonko@bnl.gov)

Mailing list:

• link

Meetings:

• TOF DWG Meetings on Mondays @ 11:30am ET, unless noted otherwise via email.
• eRD112/LGAD Consortium Meetings on Wednesdays @ 11:30am ET, unless noted otherwise via email.

TOF Subsystems

• Electron Timing and Tracking Layer (ETTL)

The ETTL consists of one AC-LGAD layer, with 500um x 500 um pixels. It provides <30um spatial resolution in both x and y directions, and <25 ps timing resolution per hit. The ETTL has an inner radius of 0.12m and outer radius of 0.64 m and locates right after mRICH at z ~ -1.610 to -1.710 m.

• Central Timing and Tracking Layer (CTTL)

The CTTL consists of one AC-LGAD layer, with 500um x 1cm strips along the beam direction. It provides <30um spatial resolution in φ direction, and <25 ps timing resolution per hit. The CTTL is located at R ~ 0.625-0.655 m and has a total length of 2.7 m from z~ -1.200 to 1.500 m.

• Forward Timing and Tracking Layer (FTTL)

The FTTL consists of one AC-LGAD layer, with 500um x 500 um pixels. It provides <30um spatial resolution in both x and y directions, and <25 ps timing resolution per hit. The FTTL has an inner radius of 0.12m and outer radius of 0.85 m and locates right in front of dRICH at z ~ +1.555 to +1.705 m.

Acceptance Summary

Caption text

Detector	Acceptance	Notes
ETTL	-3.7 < 𝜂 < -1.74	0.15 < 𝑝 < 2 GeV/c
CTTL	-1.4 < 𝜂 < 1.4	0.15 < 𝑝_T < 1.5 GeV/c
FTTL	1.5 < 𝜂 < 3.5	0.15 < 𝑝 < 2.5 GeV/c

EPIC TOF Detector Tasks Table

EPIC Software Framework Implementation

DD4HEP and FastSim Implementation

• Description: Initial inclusion and testing of TTLs in EPIC simulation framework.
• Work Start: October 2022
• Expected Duration: 2-3 months
• Required Expertise: High
• Task assigned to: Nicholas Schmidt, Friederike Bock, Zhenyu Ye
• Notes:The initial work should be done by experts, but this initial work will likely conclude quickly. After that, we will need to do (lots of) testing.
• Contact: Zhenyu Ye (yezhenyu@uic.edu)
• Links:

Slow Simulation

• Description: Include detailed modeling of detector responses in EPIC simulation framework.
• Work Start: January 2023
• Expected Duration: 3-6 months
• Required Expertise: High
• Task assigned to:
• Notes:Include charge sharing, detector digitization and noise in simulation.
• Contact:
• Links:

Background Study

• Description: Study of impact from beam-gas interaction and synchrotron radiation background.
• Work Start: January 2023
• Expected Duration: 3-4 months
• Required Expertise: Low/Medium
• Task assigned to: Graduate Student
• Notes: Part of a larger effort to study backgrounds.
• Contact:
• Links:

Detector Requirements

PID Performance

• Description: Work with Cherenkov PID group to study TOF+Cherenkov PID performance.
• Work Start: July 2022
• Expected Duration: 4-6 months
• Required Expertise: Medium/High
• Task assigned to: Friederike Bock, Oscar Hartbrich
• Notes: Study minimum requirement on timing resolution.
• Contact: Oskar Hartbrich (hartbricho@ornl.gov)
• Links:

Tracking Performance

• Description: Work with tracking group to analyze impact of TTLs on tracking efficiency, momentum resolution and angular resolution.
• Work Start: July 2022
• Expected Duration: 3-4 months
• Required Expertise: Medium/High
• Task assigned to: Nicholas Schmidt
• Notes: Compare pixel versus strip, and determine minimum requirements on spatial resolution and material budget.
• Contact: Nicolas Schmidt (nicolas.schmidt@cern.ch)
• Links:

Impact on Calorimeter Performance

• Description: Study TTL material budget on Calorimeter performance.
• Work Start: July 2022
• Expected Duration: 3-4 months
• Required Expertise: Medium/High
• Task assigned to: Friederike Bock
• Notes: Study impact on calorimeter E/p resolution.
• Contact: Friederike Bock (Friederike.Bock@cern.ch)
• Links:

Sub-system Design

CTTL Layout

• Description: Work on engineering structure and integration for CTTL, including sensor, frontend ASIC, mechanical structure, cooling, cabling, etc.
• Work Start: September 2022
• Expected Duration: 3-4 months
• Required Expertise: High
• Task assigned to: Zhenyu Ye (initially)
• Notes:
• Contact: Zhenyu Ye (yezhenyu@uic.edu)
• Links:

ETTL/FTTL Layout

• Description: Work on engineering structure and integration for ETTL/FTTL, including sensor, frontend ASIC, mechanical structure, cooling, cabling, etc.
• Work Start: September 2022
• Expected Duration: 3-4 months
• Required Expertise: High
• Task assigned to: Wei Li (initially)
• Notes:
• Contact: Wei Li (wl33@rice.edu)
• Links:

DAQ Specification

• Description: Work on DAQ system specifications.
• Work Start: September 2022
• Expected Duration: 4-6 months
• Required Expertise: High
• Task assigned to: Tonko Ljubicic
• Notes:
• Contact: Tonko Ljubicic (tonko@bnl.gov)
• Links:

Mechanical Structure Design

• Description: Work on mechanical structure design.
• Work Start: September 2022
• Expected Duration: 4-6 months
• Required Expertise: High
• Task assigned to:
• Notes:
• Contact:
• Links:

Cooling System Specification

• Description: Work on cooling system specifications.
• Work Start: September 2022
• Expected Duration: 4-6 months
• Required Expertise: Medium/High
• Task assigned to:
• Notes:
• Contact:
• Links:

R&D

AC-LGAD Sensor

• Description: Work on sensor design optimization and testing.
• Work Start: September 2022
• Expected Duration: 9-12 months
• Required Expertise: High
• Task assigned to: BNL, FNAL, LANL, Rice, UCSC, UIC
• Notes:
• Contact: eRD112
• Links:

Frontend ASIC

• Description: Work on ASIC (EICROC, HpSOC, FCFD) prototyping and testing.
• Work Start: September 2022
• Expected Duration: 6-9 months
• Required Expertise: High
• Task assigned to: BNL, FNAL, IJCLab/Omega, Nalu, UCSC, UIC
• Notes:
• Contact: eRD109/eRD112
• Links: