Heico EMD Epsilon EPS 45-80, Техническое руководство

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EPS 45-80 High-Voltage Generator
1-6
Technical Manual P/N 9894.00.G6
High Performance Pulsed Fluoro P/N 10012.000
High Performance Pulsed Fluoro is performed on standard X-ray tubes (no grid), using a
programmable surface dose rate and a variable pulse width. It is done in Dose Reduction or Image
Enhancement mode.
•
Dose reduction lowers average patient dose at slower pulse rates while keeping the same
dose per pulse (the pulse count is reduced).
•
Image enhancement provides clearer, less noisy images at slower pulse rates while
keeping the patient dose about constant.
•
Source to Patient Distance Dose Compensation Option:
The generator adjusts the X-ray beam to compensate for the
source-to-patient distance (SPD) when the gantry position
varies during an exam. This provides constant surface dose
along the full SPD span.
mAs/pulse
∝
(1/SPD)
2
•
High Frame Rate option:
Typically dedicated for high grade special procedures, this
option allows image acquisition at up to 90 frames per second, RAD & Fluoro.
Continuous Fluoro can be enabled using the service mode, for example to troubleshoot the Fluoro
imaging chain.
High Performance Pulsed Fluoro versus Standard Pulsed Fluoro
Features Standard Pulsed Fluoro High Performance Pulsed Fluoro
Minimum mA 16 mA 5 mA
Minimum mAs 0.08 mAs 0.025 mAs
Maximum Pulse Rate 30 p/s 90 p/s (with High Frame Rate option)
Maximum Fluoro Duty Cycle 33 % 50 %
Maximum kV @ low
mAs/pulse
(mAs/pulse < 0.25)
Variable, from 125 to 40 kV,
as per mAs/pulse Always 125 kV
Cardiac Auto-kW Not available Optional
Multi-Zoom Function Not available 4 magnification levels available
SPD Dose Compensation Not available Optional
High Power Fluoro P/N 10011.000
Performs continuous Fluoro at up to 140 kV & 20 mA.