Automation, efficiency and quality of calibrations and verification in the field of x-ray and gamma radiation dosimetry
Features
| - Cooperation with two radiators placed in two opposite bench sides |
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| - Hand and remote positioning modes |
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| - Remote platform positioning in coordinates, related with radiators in absolute and relative coordinates |
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| - Programmable fluent platform acceleration and halt (acceleration and halt time is approximately 1.5 s) |
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| - Safe limitation of platform moving speed |
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| - Safe operational platform acceleration and halt |
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| - Safe emergency platform halt ("side halt") |
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| - Safe halted platform state when there is control of moving |
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| - Managing by the range of platform moving |
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| - Automatic plugging-off of managing unit from AC mains when leakage current exceeds tolerated value ("emergency halt") |
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| - Serviceability control using graduation scales |
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| - Remote serviceability control |
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| - Possibility to hand platform positioning |
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| - Possibility to place water phantom |
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| - Turnkey bench |
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Application
| - Laboratories to research, adjust and serialize dosimetry equipment |
| - Metrology laboratories to graduate and verify dosimetry equipment |
| - Second standard dosimetry laboratory (SSDL) |
Calibration bench AT-01 provides remote and hand positioning of moving platform in radiation bin along ionizing radiation beam axis. Remote positioning is performed from operator's working place, which may be at the distance up to 30 meters from the radiation bin. Positioning coordinates are displayed on digital indication device and can be read from graduation scales along bench foundation. Positioning is realized with platform moving speed of 20 cm/s, 4.5 cm/s, 1 cm/s, 2.2 mm/s, 0.36 mm/s, and a discreteness of 0.045 mm. Dosimeters readings are displayed on video monitor at operator's working place.
The platform with V-shaped bearing supports moves on cylinder-shaped guides fixed on bench foundation. There is working table moving perpendicularly radiation beam axis on moving platform and supports or lifting table could be placed on it. The platform has TV monitoring system of dosimeters' readings. The bench could be completed with a support to mount level and laser device. In this case graduation scale is mounted on bin wall along radiation beam axis.
The bench could cooperate with different radiators types (UPGD, KIS-NRD, AGAT-S etc.) meeting ISO 4037 requirements.
Specification
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| The range of operational distances between radiator and detector centers |
0.4 - 10 m |
Absolute positioning error
where R is operational distance between radiator and detector centers, mm |
not more than 0.0015R |
| The discreteness of operational distance indication |
0.01 mm |
| Positioning discreteness (resolution) |
does not exceed 0.045 mm |
| Platform dimensions |
1000x1000x510 mm |
| Moving range of lifting table |
300 mm |
| The weight of placed on the table equipment |
up to 60 kg |
| The length of connective cables between platform and operator’s working place |
up to 50 m |
| Power requirements - AC mains |
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| rated voltage |
(380 ± 38)/ (220 ± 22) V |
| rated frequency |
(50 ± 2) Hz |
| Consumed power from AC mains |
does not exceed 250 VA |
| Consumed power of optional equipment placed on the platform |
does not exceed 500 VA |
| Continuous operation time |
24 h |
| Operating temperature range |
+15 °C - +35 °C |
| Bench weight, not more than |
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| managing unit with keyboard |
16 kg |
| digital indication device |
6 kg |
| platform |
100 kg |
| foundation |
200 kg |
| Average mean-time-between-failures |
not less than 10000 h |
| Average original life |
not less than 10000 h |
| Average service life |
not less than 10 years |
Complete set: foundation, platform, managing unit, keyboard, digital indication device, set of cables, set of spare parts and accessories, manual. Optional complete set by additional order: device for calibrations, device for laser adjustment, lifting table, support to mount detectors of standard dosimeter, TV monitoring system of dosimeters’ readings, TV monitoring system.
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