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Viareggio - March 27, 2007 - Newsletter N. 13
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| Double Chooz experiment relies on CAEN Waveform Digitizers |
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 The aim of Double Chooz experiment is to search for a non-vanishing value of the Theta13 neutrino mixing angle. This is the last step to accomplish prior moving towards a new era of precision measurements in the lepton sector. This goal has to be achieved by using two identical detectors, one at 300 m and another at 1.05 km distance from the Chooz nuclear cores.
Detector target and gamma-catcher vessels will be made of acrylic plastic material, transparent to UV and visible photons with wavelengths above 400nm.
Experiment electronics must undertake several major tasks: processing signals from the detector, distributing them to acquisition systems, monitoring the stability and performance of the detector.
In this framework, waveform digitizing duties will be delivered by CAEN Mod. V1721 8 Channel 8 bit 500 MS/s Waveform Digitizer.
For more info visit the web pages:
Double Chooz experiment: http://doublechooz.in2p3.fr/
CAEN Mod. V1721 Waveform Digitizer: http://www.caen.it/nuclear/product.php?mod=V1721 |
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| CAEN provides electronics for MICE particles momentum measurement |
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The international Muon Ionization Cooling Experiment (MICE) has been proposed to demonstrate the feasibility of ionization cooling of muon beams. This can be considered as one of the major technological jump needed towards the development of a "neutrino factory".
The principle of muon ionization cooling is to slow down the muons in a light absorber and then reaccelerate them in the beam direction using RF cavities. In MICE, the entire system is inserted inside a magnetic channel in order to better contain the beam.
Several particle detectors are used in order to detect, identify and measure precisely the momentum of each muon from the beam.
These detectors (time-of-flight stations and Kloe-type electromagnetic calorimeters) work with a high particle rate (up to 1 MHz). The pulse height information will be supplied, after a custom stretcher, by Mod. V1724 8 Channel 14 bit 100 MS/s Waveform Digitizer, which meets the requirements on the precision of the momentum measurement, on the purity of the particle identification and on the data acquisition rate capability. Installation is foreseen in September 2007 (about 150 acquisition channels).
For more info visit the web pages:
MICE home page: http://mice.iit.edu/
CAEN Mod. V1724 Waveform Digitizer: http://www.caen.it/nuclear/product.php?mod=V1724
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| CAEN pulse Shape Amplifier to process CHIMERA Experiment Detector output |
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CHIMERA (Charged Heavy Ion Mass and Energy Resolving Array) is a 4pi detector to study heavy ion reactions at intermediate energies, installed at the LNS in Catania. The CHIMERA project started in 1993 with the financial support of the INFN, supported by a collaboration of different Italian institutes.
The CHIMERA Detector can be schematically described as a set of 1192 detection cells (silicon detector + thick thallium doped caesium iodide crystal, coupled to a photodiode for the light readout) arranged in cylindrical geometry around the beam axis.
Prior to DAQ electronics, the detector output will be processed by the new Mod. N1568B 16 channels Pulse Shape Amplifier and Dual 16 Channel Constant Fraction Discriminator.
For more info visit the web pages:
CHIMERA experiment: http://www.lns.infn.it/research/chimera/
CAEN Mod. N1568B Pulse Shape Amplifier: http://www.caen.it/nuclear/product.php?mod=N1568B
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