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Successive approximation type (16 bits) with sliding scale linearization Resolution 8k; 8192 channels (software selectable as 8192, 4096, 2048 and 1024k) Dead time < 5µs (including memory transfer) Integral nonlinearity <= ±0.05% over the top 99% of memory range Differential nonlinearity < ±0,7% over the top 99% of memory range Gain instability <= ±1% ppm/°C./ Histogram memory 8k channels:224-1 counts per each channel (almost 17 millions counts) Real time or live time Data acquisition real or live time preset in multiples of exact one-second intervals; selectable automatic stop on real or live time exhaustion; max.preset time (224-1) s. Integral live time measurement accuracy: ≈250 ns Region of interest Integral count inside or outside established preset window, selectable automatic stop on up to (232) integral counts. Data overflow Terminate acquisition when any channel exceeds 224-1. Accessible ON-LINE information : global real acquisition time, global live acquisition time, count in region of interest (regardless of imposed stop criterion), live time per second (in increments of 3.906 ms), number of events per second. ADC LLD and ULD Computer controlled independent thresholds both covering full amplitude range with 12 bit accuracy. Controlling Fully controlled by host computer via PCI Interface. Up to 4 Tukan_8k_PCI can be supported simultaneously in one PC. Analog Input Accepts positive unipolar or bipolar semigaussian type pulses of shaping time constants > 100 ns. DC Coupled. The dynamic range is 10mV to +10 V. BNC connector. Gate Active HIGH TTL compatible logic gate. Computer controlled Gating/Nongating and Coincidence/Anti-coincidence mode. Active state of this signal (HIGH for coincidence and LOW for anticoincidence) must occur prior to and extend 200 ns beyond the peak of analog pulse. LEMO connector. The board provides optional MCS features. MCS is controlled externally via TTL Signals (9-pin D-connector with EVENT in, TRIGGER in, ADVANCE in, STOP in and ACQUIRE out, NEXT out, and SCA pins out or LEMO). maximum counting rate : - 12,5 MHz, Dwell Time - up to 224 steps (one step = 2.0 µs), sweep length - up to 8192 channels with automatic or externally triggered sweep repetition , acquisition modes - summing or replacing, no dead time between channels and sweeps, possibility to use Single Channel Analyzer as an counting input (SCA formed from MCA with threshold presetting). dimensions: 136x80 mm² (without connector), screened from EMI, six layers with separate analog and digital grounds, on board isolated DC/DC converter for analog power supplies.