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> Lecroy 4303 tfc time-to-fera converter camac module
Lecroy 4303 tfc time-to-fera converter camac module
LeCroy 4303 TFC Time-to-FERA Converter CAMAC Module
The LeCroy Model 4303 Time-to-FERA Converter (TFC) provides a timing frontend for the LeCroy Fast Encoding and Readout TDC (FEReT) System. It is a time-to-charge converter and connects directly to the LeCroy Model 4300 Fast Encoding and Readout ADC (FERA).
The Model 4303 TFC simultaneously captures 16 time intervals and transfers them to the Model 4300 FERA for digital conversion. The Model 4303 can work accepting both a COMMON START and 16 individual STOP signals or a COMMON STOP and 16 individual START signals. A rear panel switch allows selection of the mode. In both modes the module requires a pulse at the origin of the time interval to be explored, which is internally used to generate the gate to FERA. The 4303 then outputs a GATE and 16 individual signals to the Model 4300 ADC. The 16 individual signals have constant amplitude, but width proportional to captured START-STOP time interval. Front panel potentiometers allow adjustment of both the gate width and the analog output amplitude to match user's requirements on time resolution and time range with the dynamic range of the FERA ADC used. Using an 11-bit FERA, time resolutions from 50 psec to 500 psec can be obtained with corresponding time ranges from 102.4 nsec to 1024 nsec.
Time and Charge may now be measured by one fast data acquisition system and data be treated with similar procedures. Timing information can also complement charge information for application in second level trigger decisions.
The Model 4303 TFC brings the powerful and elegant features of the FERA System to time interval measurement. These include 100 kHz data acquisition rates; programmable built-in options for pedestal subtraction and data compaction; CAMAC and/or fast 10 Mword/sec data transfers to event buffers, trigger processors, or programmable data processors; and complete calibration/test facilities.
http://212.191.70.122/catalog/main/lcrynim/4303-spec.htm
