Evaluation and routine testing in medical imaging departments - Constancy tests. Imaging performance of computed tomography X-ray equipment1 Scope and object This part of IEC 61223 provides assistance in performing constancy tests on a CT scanner. It applies to those components of CT scanners which influence the image quality, patient dose and positioning. This standard defines the essential parameters which describe the performance of CT scanners with regard to image quality, patient dose and positioning; the list of parameters to be tested can be found in section 4. 5; defines the

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Table 1: deleted and Table 2: becomes Table 1

EN document number

mechanical and chemical aspects

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The standardized OTFT testing structure with a contact-area-limited doping can mitigate contact resistance and enable reliable measurement of the charge carrier mobility

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Descriptions for intermediate coats and topcoats

Specialist contractors and designers

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Studies have shown that an organic/alkaline solution is more effective than an acidic solution in extracting Cr(VI) from soluble and insoluble samples

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