Standard plots.

Here is a set of useful links pertaining to the NuMI Target Hall:

• Horn and Target Progress
• NuMI at work - overview
• Technical design handbook (best information, but still dated)
• NuMI systems information (slightly more dated)
• Target hall design discussions, even more outdated    password protected
• IHEP Spec for NT-01
• In-line documentation for NT-01
• In-line documentation for NT-02
• In-line documentation for NT-03

Here are photos of the broken cooling lines from horns 1 and 2:

• Close up of horn 1 (PH1-01) ceramic coupling on supply line. The pinhole leak is cirlced in this photo.
• Close up of horn 2 (PH2-01) ceramic on return line. The break is fairly clean and circumferential.
• Close up of horn 2 (PH2-01) break on return line. This shows a small, thin band of metal, which is about 4 mils thick (the nominal wall thickness is 20 mils).