深圳湾边贸易AAPM CT Performance Phan

深圳湾边贸易aapm ct performance phantom cirs ct模体价格优惠 model 610价格优惠。

厂家：美国computerized imaging reference systems, incorporated (美国cirs)

meetsguidelinesinaapmreport#1“performanceevaluationandqualityassuranceofctscanners”

the cirs model 610 aapm ct performance phantom offers the user a single test object that measures ten distinct ct performance parameters. the phantom design is based on the guidelines presented in report #1 of the american association of physicists in medicine task force on ct scanner phantoms.  the goals of report #1 were to “(1) define ‘performance’ of a ct scanner【敏感词】(2) describe methods of performance testing through utilization of particular phantoms.”

a ct number linearity insert, high contrast resolution insert【敏感词】slice width insert are housed in an 8.5 “ diameter pmma water tank with quick disconnect valves for ease of filling【敏感词】draining between use.  also included is a 0.25” bone equivalent ring that can be fit over the inserts to evaluate the effects of beam hardening.

a contrast test object is adhered to the bottom of the tank that includes two rows of cavities from 1 to 0.125” diameter.  the cavities can be filled with various solutions for contrast evaluation.   an aluminum alignment insert is incorporated in the lid of the tank【敏感词】can be interchanged with a polystyrene tld insert for dose measurements. a user’s manual, holding cradle, filling tubes【敏感词】other accessories are included. measurement capability:

noise

size independence

sensitivity / detectability

radiation dose

mechanical alignment

spatial uniformity

beam hardening

hu linearity

slice thickness

spatial resolution【敏感词】line spread function