R&D day

• Xuan Li (Los Alamos National Laboratory)
• Alexander Jentsch (Brookhaven National Laboratory)
• Andreas Werner Jung (member@cern.ch)
• Simone Michele Mazza
• Wei Li (Rice University)
• Zhenyu Ye (Laurance Berkeley National Laboratory)
• Satoshi Yano (Hiroshima University)

Room: https://bnl.zoomgov.com/j/1617546118?pwd=qNzxLqF8Q4Mj3RerAZdVSELzEgEQzV.1 Dear All, as announced earlier the Detector R&D Days will take place on 16-17 April 2024. The "days" are rather short to give US west coast and Europe a fighting chance. We put the groups with involvement from Asia early to ease the pain a bit. The preliminary agenda is here: https://indico.bnl.gov/event/27200/ The purpose of the meeting is of course to touch base and discuss the progress and status of the remaining R&D efforts. Some of the programs have finished and their presentation can be a brief show-and-tell to remind everyone what was learned and where things stand. For the ongoing projects we need to hear about where we stand with the milestones/deliverables and what the plan is to retire them. The length of the talks plus discussions varies from 15 to 55 minutes. The times given in the agenda include 10 min discussion (5 for 15 min talks). Please send the names of your speaker to us so we can add your name to the agenda. Best regards, Rolf & Thomas From: Thomas Ullrich <thomas.ullrich@bnl.gov> Subject: EXT: R&D Days - Reminder: Milestones Date: March 25, 2025 at 1:58:59 PM EDT Reply-To: thomas.ullrich@bnl.gov Dear All, We want to remind everyone that is important in all presentation to address the status of the milestones including a realistic estimate when they will be achieved. Please find attached a list of the current milestones for each project. Those are tight to P6 and were also shown in the recent DOE OPA reviews. Rolf added everywhere a proposal for some text on the R&D completion, borrowing from what we had last year. It may help you to get started but feel free to change/edit the text as it is only a guess/suggestion what we give you. Please also correct the completion dates if needed. Please have a slide on the milestones/deliverables in your presentation. Best regards, Rolf & Thomas eRD112 (ToF/AC-LGAD) Validate production readiness of the AC-LGAD detectors in the barrel region, the forward side end cap of the EIC detector, and the far-forward Roman Pot beam line detectors. This includes sensor prototypes, ASIC demonstrator, and full-scale parts tested and finalized. [September 2026] Done, HPK sensors look promising. Have purchased 3rd version HPK sensors with FY24 funds and collaborated on CERN purchase of FBK sensors for comparison, testing ongoing in FY25. ASIC demonstrator can only be beyond CD-2 so this will be Project Engineering and Design.

PDR TOF review in Fall of 2025 Room: https://bnl.zoomgov.com/j/1617546118?pwd=qNzxLqF8Q4Mj3RerAZdVSELzEgEQzV.1 Begin forwarded message: From: Sourav Tarafdar <stara@jlab.org> Subject: EXT: PDR for ToF Date: March 18, 2025 at 4:46:02 PM EDT To: "Xu, Zhangbu" <zxu22@kent.edu>, Satoshi Yano <syano@hiroshima-u.ac.jp> Cc: Benedikt Zihlmann <zihlmann@jlab.org> Dear Zhangbu and Satoshi, We are planning on having PDR during Fall 2025. The date is not fixed yet but we probably need to start thinking about it. The review committee will be charged with judging the progress of ToF subsystem based on following questions Are the technical performance requirements appropriately defined and complete for this stage of the project? Are the plans for achieving ToF performance and construction sufficiently developed and documented for the present phase of the project? Are the current designs and plans for detector and electronics readout likely to achieve the performance requirements with a low risk of cost increases, schedule delays, and technical problems? . Are the fabrication and assembly plans for Time of Flight subsytem consistent with the overall project and detector schedule? Are the plans for ToF integration in the EIC detector appropriately developed for the present phase of the project? Have ES&H and QA considerations been adequately incorporated into the designs at their present stage? Have the recommendations from previous reviews been adequately addressed? So we encourage the ToF subsystem to start planning the activities which will be capable of answering the above questions point by point to the full satisfaction of review committee. Further the review will be considering BToF and FToF as different subsystems . As such I have no idea who is DSTC for FToF. Also the reviewers are not yet selected. Please feel free to reach out if there are any additional questions. Best regards, Sourav

assembly procedure at UCSC

• Simone Michele Mazza

Room: https://bnl.zoomgov.com/j/1617546118?pwd=qNzxLqF8Q4Mj3RerAZdVSELzEgEQzV.1

Assembly in Japan

• Satoshi Yano
• Satoshi Yano (Hiroshima University)

Room: https://bnl.zoomgov.com/j/1617546118?pwd=qNzxLqF8Q4Mj3RerAZdVSELzEgEQzV.1