ORTEC DSPEC Pro, Руководство пользователя по оборудованию

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794380D / 0914 3. SPECIFICATIONS
47
Battery Internal battery-backed up memory to maintain settings in the event of a power
interruption.
Presets Multiple presets can be set on any or all of the following:
!
Real Time Stops data collection when the real time reaches this value.
!
Live Time Stops data collection when the live time reaches this value.
!
ROI Integral Integral count stops data collection when the sum of counts in all ROI
channels reaches this value.
!
ROI Peak Peak count stops data acquisition when the count in any ROI channel reaches
this value (maximum value of 2
31
!
1 counts [2×10
9
]).
!
Uncertainty Sets 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%).
!
Multi-Nuclide MDA Stops data collection when the value of the minimum detectable
activity (MDA) for up to 20 user-specified MDA nuclides reaches the needed value.
The presets are implemented in hardware so the computer does not have to poll the
DSPEC Pro for the preset to operate. See Section 2.3.10 for details on the MDA preset
calculation.
!
Data Overflow Terminates acquisition when data in any channel exceeds 2
31
!
1 (2×10
9
)
counts.
Digital Spectrum Stabilizer
!
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).
3.1.1. Electrical and Mechanical
Dimensions
!
DSPEC Pro 8.1 cm H × 20.3 cm W × 24.9 cm D (3.2 in. × 8 in. × 9.8 in.).
!
DIM 11.2 cm H × 3.13 cm W × 6.5 cm D (4.4 in. × 1.25 in. × 2.6 in.).