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June 2, 2004. PPAC E. Norbeck U. Iowa . 2. Typical low-pressure PPAC. Two flat plates Separated by 2 mmFilled with 10 torr isobutaneMIPs often leave no signal700 V between platesTiming resolution better than 300 psUsed with 50 MeV/nucleon heavy ions. June 2, 2004. PPAC
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