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EASY CRATE

EASY CRATE. - +. m P GND. Ana1+ Ana1 – Dig1 + Dig1 – Ana2+ Ana2 – Dig2 + Dig2 -. crate GND. LV Test Napoli feb 05. Noise ripple: +/- ~ 10 mV (150 KHz) +/GND ~ 1 V (150 KHz) -/GND ~ 1 V (150 KHz). shield. LV cable. 10 mt. Solutions proposed: +/GND  C ~ 10 m F

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EASY CRATE

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  1. EASY CRATE - + mP GND Ana1+ Ana1 – Dig1 + Dig1 – Ana2+ Ana2 – Dig2 + Dig2 - crate GND LV Test Napoli feb 05 • Noise ripple: • +/- ~ 10 mV (150 KHz) • +/GND ~ 1 V (150 KHz) • -/GND ~ 1 V (150 KHz) shield LV cable 10 mt • Solutions proposed: • +/GND  C ~ 10 mF • mP GND / crate GND  C ~ 100 mF • better crate GND • sense reference connections • new connector • Same for the HV board RPC RB3 distrib. shield safety GND Ref. GND

  2. Rack LV 4 pairs LV distrib. board chip chip From LV power supply with floating output ALV1 AGND1 DLV1 ALV DGND1 shielded cable AGND ALV2 AGND2 DLV DLV2 DGND2 DGND shield IRON – MAGNET safety ground AGND FEB 1 chip chip AGND FEB strip copper chip kapton AGND Double Gap 2 Double Gap 1 DGND Chamber metallic structure AGND FEB 6 HVReturn Copper 2 Copper 1 chamber GND

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