Difference between revisions of "GlueX Target Design Review, January 24, 2012"
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==Review Slides== | ==Review Slides== | ||
| − | [https:// | + | [https://halldweb.jlab.org/talks/2012-1Q/Hall%20D%20Target%20Design%20Status,%20January%2024,%202012.pptx Jim's Presentation] |
==Notes== | ==Notes== | ||
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As recorded by Mark: | As recorded by Mark: | ||
| − | * | + | * Steve suggests welded hydrogen line connections rather than fittings, fittings developed leaks over time. |
* Concern from Dave: distance of the condenser from the cold head. Jim moved it downstream to reduce volume of hydrogen in feed line. | * Concern from Dave: distance of the condenser from the cold head. Jim moved it downstream to reduce volume of hydrogen in feed line. | ||
* Dave suggests larger surface contact for making the thermal short between hydrogen line and shield. | * Dave suggests larger surface contact for making the thermal short between hydrogen line and shield. | ||
Latest revision as of 15:16, 31 March 2015
Present: Steve Christo, Jim Fochtman, Mark Ito, Dave Kashy, Tim Whitlatch, Elliott Wolin
Review Slides
Notes
As recorded by Mark:
- Steve suggests welded hydrogen line connections rather than fittings, fittings developed leaks over time.
- Concern from Dave: distance of the condenser from the cold head. Jim moved it downstream to reduce volume of hydrogen in feed line.
- Dave suggests larger surface contact for making the thermal short between hydrogen line and shield.
- Hall B used boil-off helium to pre-cool target gas. We may add pre-cooler from higher temp head.
- Dave suggested connecting the heater directly to the condenser, not the conduction tube.
- Dave recommends high quality temperature and pressure instrumentation, well calibrated. Useful in knowing when the target is full by knowing position in the phase diagram.
- Dave made had some comments on how to optimize the arrangement of the feed and return lines.
