The CIRS mammography research set includes tissue equivalent phantoms 4, 5 and 6 cm thick. Each phantom contains identical embedded details (see map 011A). The glandular content of each phantom is 50%, 30%, and 20% respectively. Also included are phototimer compensation plates enabling a range of thickness from 0.5 cm to 7 cm with a glandular content of 30%, 50% and 70%.
One compensation plate contains embedded details for evaluation of image quality. A heavy duty foam lined carrying case are included.
CIRS resin material mimics the photon attenuation coefficients of a range of breast tissues. Average elemental composition of the human breast being mimicked is based in the individual elemental composition of adipose and glandular tissue reported by Hammerstein.
Attenuation coefficients are calculated by using the "mixture rule" and the Photon Mass Attenuation and Energy Absorption Coefficient Table of J.H. Hubbell.
Features:
?Enable evaluation of image quality under varying degrees of thickness and glandularity
?Provides accurate reliable test for radiation dose
?Ensures consistent production of diagnostically useful images
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1、技術溝通，初步判斷問題
電話與客戶進行初步溝通、了解并初步判斷儀器
所出現的故障問題。 -
2、簽訂維修協議
由我公司向客戶發送儀器維修協議，客戶需如實
填寫內容并回傳以便我司對儀器做進一步判斷。 -
3、客戶郵寄儀器
客戶可按照我司地址郵寄儀器，并將快遞單拍、
照發送至您的專屬客服進行備案。 -
4、詳細診斷機器故障
我司收到郵寄儀器后會對郵寄的儀器進行拍照、
并開箱檢驗，對儀器做進一步故障判斷。 -
5、支付維修費用
如客戶儀器在保修期內，我司不收取任何維修費，
如客戶儀器在保修期外，我司會適當收取維修費。 -
6、郵寄儀器給客戶
我司將維修好的儀器按客戶地址進行拍照并郵寄，自此
雖維修協議終止，但我司將提供終身免費答疑及技術指導。
專業從事儀器儀表檢修9年，部分可提供服務的產品型號如下：
