barrel trt straw leak test
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04/19/23BNL0103Straw
K. McFarlaneBNL, 20-Mar to 22-Mar, 2001
2
Straw Leak Test Status
• Running now with 2-straw partially automated system
• Can reliably get 125 straws/day (target)
• New 4-straw system is under construction (in use April 2001)
• Automation of additional steps is being developed
• Basic leak test technology is unchanged.
04/19/23BNL0103Straw
K. McFarlaneBNL, 20-Mar to 22-Mar, 2001
5
Straw Leak Test Criterion
• Straw is re-tested if leak rate exceeds 0.020” water in 20 s (0.7 mbar/bar/min; cf. TDR specification of 0.1 mbar/bar/min)
• Straw that fails three times is rejected.
• Typical re-test results are: 0.004, 0.001, 0.010, 0.002”.
• Leak rate is usually a function of our machine. We do not plan to change.
04/19/23BNL0103Straw
K. McFarlaneBNL, 20-Mar to 22-Mar, 2001
6
Leak Test Partial Automation
Partial automation – BridgeView front panel
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