Name:
ASTM E1695-95(2013) PDF
Published Date:
06/01/2013
Status:
Active
Publisher:
ASTM International
1.2 This test method is more quantitative and less susceptible to interpretation than alternative approaches because the required disk is easy to fabricate and the analysis is immune to cupping artifacts. This test method may not yield meaningful results if the disk image occupies less than a significant fraction of the field of view.
1.3 This test method may also be used to evaluate other performance parameters. Among those characteristics of a CT system that are detectable with this test method are: the mid-frequency enhancement of the reconstruction kernel, the presence (or absence) of detector crosstalk, the undersampling of views, and the clipping of unphysical (that is, negative) CT numbers (see Air Force Technical Report WL-TR-94-40212). It is highly likely that other characteristics as well can be detected with this test method.
1.4 The values stated in SI units are to be regarded as the standard. Inch-pound units are provided for information only.
1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
| File Size : | 1 file , 84 KB |
| Note : | This product is unavailable in Russia, Ukraine, Belarus |
| Number of Pages : | 5 |
| Published : | 06/01/2013 |
