ORTEC DSPEC - Indicators

5. SPECIFICATIONS
17
Data Memory
16384 channels of non-volatile data memory; 2
31

1 (2 billion) counts per
channel.
Presets
Multiple presets may be set on any or all of the following:

Statistical
Allows setting the required statistical accuracy on a key peak (for example, stop
counting when the activity of
60
Co is known to be better than 5%).

Real/Live Time
In multiples of 1 s.

Region of Interest
Peak count.

Region of Interest
Integral count adjustable to maximum value of 2
32

1 counts (4 billion).

Data Overflow
Terminates acquisition when data in any channel exceeds 2
31

1 counts.
Digital Spectrum Stabilizer
(controlled via the computer)

Stabilization
Peak centroid (zero and gain) channel 2 to 16384; stabilization window width
(zero and gain) ±1 to ±256 channels.

Zero Correction Resolution
±64 channels with a minimum adjustment of 0.1 channel out
of 16384 total channels.

Gain Correction Resolution
0.00025% (from 99.5% to 100.5% in 4096 steps).
Bias Supply
0 to ±5000 V, continuously variable by potentiometer with an output current
between 0 and 100 µA; or ±1500 V, continuously variable by a potentiometer with an output
current between 0 and 500 µA. ON/OFF via computer control.
5.1.1. Indicators
High Voltage
Front-panel LEDs for bias polarity, HV ON/OFF, and bias supply overload.
Processor BUSY
Front-panel LED indicates microprocessor activity.
Stabilizer
Front-panel, 7-segment LEDs indicate gain and offset values of the Stabilizer.

GAIN
–999 to +999.

OFFSET
–999 to +999.