T. Lefevre

BLM system for the PETS in 2004BLM system for the PETS in 2004

Tunnel

Gallery

8 channels digitizer VME module12 bits acquisition @ 96 MHz

0-2kV, 100mA Power supply

Rack 095 • 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 converterse-

ACEM 1ACEM 4ACEM 6

Beam

x = horizontal, y = vertical, z = longitudinal : z = 0 at the entrance of the PETS tankACEM 1 (n°6) : x = -15cm y = +18cm z = -11cm Cable 2903848AACEM 2 (n°7) : x = -15cm y = +18cm z = +20cm Cable 2903849AACEM 3 (n°1) : x = -15cm y = +18cm z = +72cm Cable 2903850AACEM 4 (n°2) : x = -15cm y = +18cm z = +111cm Cable 2903851AACEM 5 (n°4) : x = -15cm y = +18cm z = +158cm Cable 2903852AACEM 6 (n°5) : x = -15cm y = +18cm z = +186cm Cable 2903853AHV power supply Cable 2903856A

ACEM 3 ACEM 2ACEM 5

T. Lefevre

PETS configuration – Sept 2004PETS configuration – Sept 2004

BLM / PETS CablesBLM / PETS Cables

Price estimatePrice estimate

T. Lefevre

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