Starcheck maxi phantom
WebbSTARCHECK maxi has been designed especially for measurements of high-resolution star profiles for radiation fields up to 40 x 40 cm. The higher scanning lengths covered by 707 detectors distributed 40 cm … WebbSTARCHECK maxi专为测量高分辨率星形 profile 而设计，适用于最大 40 x 40cm²的辐射野。内含707个探测器，覆盖的扫描长度更长，沿主轴分布40 cm，沿对角线分布56.5 cm，这是其与STARCHECK的唯一区别。MR变体STARCHECK maxi MR支持MR LINAC的测量。
Starcheck maxi phantom
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WebbSTARCHECK MAXI MR Highlights. The only detector array to measure radiation fields up to 40 cm x 40 cm. Fast acquisition of all relevant beam parameters in one single … WebbSTARCHECK or 2D-ARRAY seven29 ionization chamber arrays (both PTW Freiburg) for the . QA of electron and photon beam energy. The BQ-CHECK phantom is 300 × 300 × 47 mm in size with wedges at three of the diagonal corners: two opposing aluminum wedges and a single copper wedge. Using an array and the BQ-CHECK phantom, the principal axis ...
Webbradiation medicine qa . radiation medicine qa . show more Webb14 feb. 2024 · The design of the shield was guided by measurements of the beam output and of the profile symmetry using the Starcheck maxi−MR array. For these measurements, the detector array was placed at the isocentre with build-up material equivalent to 10 cm of water and 10 cm of backscatter material behind it and profiles of varying field sizes were …
http://www.ptw-beijing.cn/index/product/2.html?cate=9 WebbThe accordance of MR and accelerator isocenters (MR-to-MV) using a dedicated phantom (Elekta), a check of electronic portal imaging device (EPID) central pixel position to map the MV isocenter stability (MV Alignment Phantom, Elekta), dose profile measurements for field sizes of 2x2 cm 2, 4x4 cm 2, 10x10 cm 2, 30x20 cm 2 and 40x22 cm 2 …
WebbSTARCHECKmaxifeatures the same performance as STARCHECK. The maximum field size is 40 cm x 40 cm. 709 ionisation chambers are arranged in a star shape. STARCHECKmaxiweights 13 kg. With a separate adapter plate the BQ-CHECK and the FIELDCHECK phantom can be used together with STARCHECKmaxi. Excellent …
WebbBEAMSCAN® 3D water phantom – the fastest water phantom to set up and easiest to use for all acceptance testing and commissioning needs, now also available for the Halcyon™ system. STARCHECK maxi® MR array – a comprehensive solution for machine QA — from high-resolution measurements up to 40 cm champion pokemon xhappy video game charactersWebb9 juli 2009 · The comparison of scans for a 10×10 cm field showed that the Starcheck in solid phantom agreed with the in-water ion chamber scan within 0.5% at all points. Conclusion: The Starcheck is an easy-to-use device that meets, and generally exceeds, the manufacturer's specifications for relative dosimetry and can be used as a substitute for … champion pool makerWebbThe FIELDCHECK test object from PTW (T40052, see our equipment page) is normally used in combination with a STARCHECK or STARCHECK maxi ionization chamber array. The … champion point golf course memphis inWebbStarcheck Maxi profile over the range of field sizes and depths measured, demonstrating that the device is suitable for accepting a beam model. Figure 1: Profiles from a 20x8 cm field measured on the Starcheck Maxi compared to those extracted from Monaco Conclusion The PTW Starcheck Maxi MR array is an accurate and champion poolWebb12 feb. 2024 · The tests use the same 200 mm head phantom as the daily checks and the relevant sections of the phantom are depicted in Fig. 6b. The analysis is as per the … champion plumbing sewer and drain reviewsWebbSTARCHECK maxi: T10033-000111 ARRAY INTERFACE 4000: T16039-000820 Description: Ionization chamber array with 707 air-vented ionization chambers for real-time beam measurements with photons and electrons Measurement depth: 8.5 mm below surface (water depth: 8.9 mm) Field size: up to 40 x 40 cm Minimum measurement interval: 100 … happy view ketts hill norwich