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Advanced Beam Loss Monitoring System for PETS: Installation and Configuration Overview

In 2004, six Beam Loss Monitors (BLMs) were installed along the PETS tank, utilizing Aluminum Cathode Electron Multipliers with a 2 ns response time for high temporal resolution in beam loss observations. These detectors operate in parallel, with output signals amplified via 26/46 dB 300 MHz amplifier cards. The digitized signals are processed using a VME module with a 12-bit acquisition at 96 MHz. Detailed configuration and position of the BLMs are provided, alongside a comprehensive cost estimate for the components involved, amounting to 28.1kCHF for the BLM units.

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Advanced Beam Loss Monitoring System for PETS: Installation and Configuration Overview

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  1. BLM system for the PETS in 2004 • 6 Beam Loss Monitors are installed and distributed along the PETS Tank • The detectors are Aluminum Cathode Electron Multipliers. They have a fast time response (2ns) which allows to observe the time evolution of the beam losses. • All the BLM’s are supplied in parallel • Every signal can be amplified in the tunnel using a 26/46dB 300MHz amplifier card. • The output signals are then sent to fast Analog to Digital converters Rack 095 8 channels digitizer VME module 12 bits acquisition @ 96 MHz 0-2kV, 100mA Power supply Gallery Tunnel e- T. Lefevre

  2. BLM / PETS Cables ACEM 6 ACEM 5 ACEM 4 ACEM 3 ACEM 2 ACEM 1 Beam PETS configuration – Sept 2004 x = horizontal, y = vertical, z = longitudinal : z = 0 at the entrance of the PETS tank ACEM 1 (n°6) : x = -15cm y = +18cm z = -11cm Cable 2903848A ACEM 2 (n°7) : x = -15cm y = +18cm z = +20cm Cable 2903849A ACEM 3 (n°1) : x = -15cm y = +18cm z = +72cm Cable 2903850A ACEM 4 (n°2) : x = -15cm y = +18cm z = +111cm Cable 2903851A ACEM 5 (n°4) : x = -15cm y = +18cm z = +158cm Cable 2903852A ACEM 6 (n°5) : x = -15cm y = +18cm z = +186cm Cable 2903853A HV power supply Cable 2903856A T. Lefevre

  3. Price estimate • PETS Beam Loss Monitoring system: 6 BLM units  28.1kCHF • Detectors : (6) 8.1kCHF • Cables : 4.7kCHF • Connectors : 1.3kCHF • Power supply : 3.5kCHF • Mechanical support : 2kCHF • ADC’s : 5.5kCHF • Divers : 3kCHF T. Lefevre

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