Author/Authors :
Hallgren، نويسنده , , B and Bal، نويسنده , , F and Barr، نويسنده , , G and Buchholz، نويسنده , , P and Ceccucci، نويسنده , , A and Formenti، نويسنده , , F and Funk، نويسنده , , W and Gianoli، نويسنده , , A and Kozhevnikov، نويسنده , , Yu and Lacourt، نويسنده , , A. and Laverrière، نويسنده , , G and Martini، نويسنده , , M and Papi، نويسنده , , A and Sozzi، نويسنده , , M and Tarlé، نويسنده , , J.C and Vossnack، نويسنده , , O and Wahl، نويسنده , , H، نويسنده ,
Abstract :
The 13 500 channels of the NA48 liquid-krypton electromagnetic calorimeter readout electronics were put into operation in 1997. The digitizer electronics employs a new gain switching technique that expands the dynamic range of a standard 10-bit ADC to 14 bits at 40 MHz sampling rate employing a custom-developed integrated circuit (KRYPTON). The KRYPTON has been fabricated in 1.2 μm BiCMOS technology and was successfully developed together with industry on a short timescale. The performance and the experience from the first year of the operation of the liquid-krypton calorimeter electronics will also be briefly discussed.
