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Qacc thumb 900

Modality

Task Group

Category

Qacc thumb 900

Specifications

Hardware General Requirements
Warm-up time 15 min for relative; 60 min for absolute
Pre-irradiation According Pre-irradiation
Cooling Forced air cooling via two fans
Uniformity correction Via an individual factory calibration matrix, determined with 60Co radiation, stored in the device
Hardware General Specification Data
Application Routine QA of high energy photon and electron beams
Positioning Gantry mount (holder optional) or patient table
Measuring Quantity Absorbed dose, dose rate
Energy Range 60Co, 4 MV-30 MV Photon; 4 MeV-21 MeV Electron
Intrinsic build-up 3 mm Tecaran ABS, density 1.06 g/cm³
Backscatter material RW3, thickness 22 mm
Dose rate range 0.02-20 Gy/min
Signal to noise ratio Less than 1 % with 1 cGy integrated dose
Dose linearity Tested to be better than 0.5 % from 10 cGy to 5 Gy integral dose and better than 0.5 % from 0.1 Gy/min up to 4 Gy/min dose rate
Output factor Within 1 % from 5 x 5 to 25 cm field size compared to CC13 between 6 and 18 MV
Outer Dimensions 56 cm (L) x 6 cm (H) x 32 cm (W)
Weight ~10 kg
Power Supply ~10 kg
Power Supply 100-240 V
Frequency 50/60 Hz
Power Cord, Plug US or German power plug included
Interface to PC Point To Point or network Ethernet connection
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