XLZD space requirements

In the context of space requirements for a top-loading option, various dimensions, installations, and issues need to be taken into account. This includes the sizing of cryostats and water shields, TPC detectors, installation challenges such as hook heights and access points, and potential problems related to water tank apertures, gantries, and cleanliness. Questions around sealing tank covers, scintillator temperatures, cleanroom closure, and head-height for filling Restox II cylinders also arise. Planning for integration, safety, maintenance, and operational considerations is crucial to successful implementation and performance.

• Space Requirements
• Top-Loading Option
• Cryogenics
• Installation Challenges
• Water Tank Apertures

feltner_m Follow

Uploaded on Feb 23, 2025 | 0 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.

Presentation Transcript

1. XLZD space requirements Top-loading option

2. 3m + Assumptions Cryostat dimensions as per Cooper 3/8/23 d=4m, h=5.2m [d=3.6m, h=5.4m]? Water shield d=12m, h=12m 12m TPC d=3m h=2m (40 tonnes) [2.9m with PMTs] h=3m (60 tonnes) [3.9m with PMTs] h=4m (80 tonnes) [4.9m with PMTs] TPC Detector standing on floor Cryogenics + above water tank, but with central access aperture from above 12m

3. Installation Top loading of parts Critical 19.5m to hook but could use lifting cross to reduce by ~2m ? and/or steel platform to offset 1-2m of water shielding*? Side access opening in water tank 19.5 m 12 m 12 m 12m OD LS tanks in first (if required) Two working platforms. Top with aperture cover plate. Lower platform optional? 3m 4.75m Local (few tonne) trolleys needed. TPC Upper platform vertical working space is tight for TPC assembly use steel platform to lower detector* or open side aperture in water tank? TPC 12 m 12 m * May depend on RESTOX II head-height requirement for gravity fill. 12m

4. Issues Arising 1. Water tank apertures there will inevitably be small sized sealed penetrations needed for feedthroughs of various types. These can be largely predefined and manufactured in prior to first acceptance testing of the tank. However, what are the problems from having larger sized temporary cut-out apertures in the water tank to help assembly/integration, but which then must be sealed, passivated and maybe certified in some way after the installation is completed? 2. During assembly/integration the water tank will need to have two separate person entry/exit points for safety reasons. This will mean some minimum level of stairways to get from top to bottom. What do we think about having gantries within the water tank given that we were targeting ISO6. Are such large-scale structures really compatible with maintaining ISO6 should we be prepared to go to ISO7 in general, but stepping up towards ISO6 at key moments in more localised volumes? 3. Should we plan to remove gantries after integration is complete, and clean up after ourselves, or leave in place for later phasing? 4. Does top water tank cover need to be hermetically sealed? 5. If we use Gd loaded water-based liquid scintillator what are constraints on temperature? 6. What is best way to close cleanroom volume at top open-part of water tank and to include crane? 7. Any update on head-height needed for gravity filling of Restox II cylinders?