Title :
NEMO-3 calorimeter electronics
Author :
Bernaudin, P. ; Cheikali, C. ; Lavigne, B. ; Lebris, J. ; Richard, A.
Author_Institution :
Lab. de l´´Accelerateur Lineaire, Univ. de Paris-Sud, Orsay, France
Abstract :
The calorimeter electronics of the NEMO-3 double beta decay experiment fulfills three functions: (i) energy measurement of the electrons by measuring the charge of the pulses, (ii) time measurement, (iii) fast first level triggering. The electronics of the 1940 Scintillator-PM modules is implemented as 46 “9U×400 mm VME” boards of up to 51 channels. For each channel the analog signals conditioning is implemented as one SMD daughter board. Each board performs 12 bit charge measurements with 0.35 pC charge resolution, 12 bit time measurements with 50 ps time resolution and a fast analog multiplicity level for triggering. The total handling and conversion time for all the channels is less than 100 μs. The electronics will be presented as well as the test system
Keywords :
analogue-digital conversion; calorimeters; discriminators; nuclear electronics; particle calorimetry; NEMO-3; VME boards; calorimeter; charge measurement; charge resolution; energy measurement; first level triggering; time measurement; time resolution; Charge measurement; Current measurement; Electronic equipment testing; Electrons; Energy measurement; Performance evaluation; Pulse measurements; Radioactive decay; Signal resolution; Time measurement;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2000 IEEE
Conference_Location :
Lyon
Print_ISBN :
0-7803-6503-8
DOI :
10.1109/NSSMIC.2000.949902
