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INTRODUCTION
American College of Radiology
Accreditation Phantom for Whole Body Scanners
(Large Phantom)
Specifications as designated by the American College of Radiology
The phantom is an MRI accessory used to evaluate the performance of an MRI machine.
Schedule B number 9018.19
The ACR-MRI phantom is an 8” (203.2mm) diameter cylinder, 6.82” (173.40mm) tall with
various fixtures inside including a dinosaur, grid, membrane stack, ramp, resolution block,
and S-N chamber.
The measured volume of one, version 2 phantom is 3627 ml.
The volumes could be +/- 10 ml, maybe more, but likely less.
The salt solution inside the phantom contains <11 grams nickel chloride hexahydrate and
17 grams of sodium chloride in 3.8 liters of water.
Inside the resolution block is hydrogenated vegetable oil. (brand name – Crisco)
This unit may break open if subjected to extremes of temperature.
Keep temperature between 60-80°F (15-27°C).
Quality control testing is directed and overseen by the American College of Radiology.
Spec Sheet Page 2 of 2
PHANTOMS CONTAIN NONE OF THE FOLLOWING:
Lead (Pb)
Mercury (Hg)
Cadmium (Cd)
Hexavalent Chromium (Cr VI)
Polybrominated Biphenyls (PBB)
Polybrominated Diphenyl Ethers (PBDE)
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Radiation Instruments
Dosimeters film
