Model 701-706
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ATOM® Dosimetry Phantoms Models 701 - 706 WHOLE BODY DOSE • ORGAN DOSE • THERAPEUTIC RADIATION

CIRS ATOM® phantoms are a full line of anthropomorphic, cross sectional dosimetry phantoms designed to investigate organ FEATURES • Phantom models cover a wide range of patient ages • Organ specific dosimetry with minimal detectors • Superior tissue simulation and lifelike imaging properties dose, whole body effective dose as well as verification of delivery of therapeutic radiation doses. ATOM is the only line of dosimetry phantoms to range in sizes from newborn to adult. Six models are available: newborn, 1-year, 5-year and 10-year old pediatric phantoms as well as adult male and female...

The Choice for Quality Assurance, Clinical and Research Applications ATOM phantoms provide our best tissue simulation and the widest variety of options available on whole body cross sectional dosimetry phantoms. Additionally they are designed to accommodate a wide variety of detectors in a variety of configurations offering dose measurements in precise body locations. This publication introduces the main concepts for ATOM Phantoms; however, when ordering you should contact your CIRS representative or CIRS Technical support to design the best dosimetry phantom for your needs. Anthropomorphic...

Anthropomorphic Phantoms From Adults to Infants DOSE CALCULATIONS RELATED TO SIZE The size of each model is based on ICRP 23, ICRU 48 and available anatomical references (See Table 1). Only CIRS ATOM phantoms represent both pediatric and adult patient groups. • Adult Male • Adult Female This age range allows more accurate calculations of dose. The pediatric products support practitioners efforts to “child size” diagnostic scanning protocols in CT and more precisely determine effective doses in diagnostic radiology. Because scattering radiation can give a significant dose contribution to the...

Proven Tissue Equivalent Technology CIRS tissue simulation technology has been validated through specific testing, continuous monitoring of manufacturing applications, worldwide use and acceptance of products for over 25 years. CIRS formulates Tissue Equivalent (TE) materials for quantitative measurement, training, image quality control and dose calibration. Resins and polymers are available to simulate any tissue in the human body. CIRS computer models consider tissue to be mimicked, modality/energy level and raw materials to be used. formulation equivalent to 0.2 g/cc. Other densities are...

Homogeneous Bone The skeletal anatomy of ATOM phantoms includes a homogeneous bone tissue composition that averages known cortical to trabecular ratios and age based mineral densities. Bone tissue compositions for the adult and pediatric phantoms were designed based on the most reliable data available. There are many advantages to using average bone rather than natural skeletons or simulated skeletons that include separate trabecular and cortical densities. *This design feature provides for dose verification in different applications, especially when comparative Monte-Carlo calculations are...

Optimized Organ Dosimetry CT and Cone Beam CT dosimetry can require organ dosimetry and whole body dosimetry. CIRS is the only manufacturer that offers organ hole locations specific to 22 radiosensitive internal organs, optimized for precise calculations using the minimum number of detectors necessary. The selection of hole positions is supported by detailed anatomical information about the average position of these 22 radiosensitive internal organs. A set of maps outlining the most frequently observed organ locations and also the optimized detector hole distribution within each organ...

Dosimetry Holes in Standard Grid Patterns Dose verification in Radiation Therapy can require standard 3cm X 3cm (option “-B”) or 1.5cm X 1.5cm (option “-C”) hole grids. These are available in lieu of the organ placement feature. For all hole options, the thru holes are typically 5 mm diameter. Thru holes of 3mm, 7mm and 10mm diameter are available as standard options. Other hole sizes may be available via custom order. Model 702-B section 23 3 cm x 3 cm grid option Model 702-C section 23 1.5 cm x 1.5 cm grid option Standard Solid TE Plugs Detector Options For all grid options, holes are...

MOSFET DOSIMETRY MOSFETs are accommodated by ordering the ATOM MOSFET Cartridge as an accessory. This specially machined plug is available in soft tissue and bone formulations. The plug has a recessed area that fits the MOSFET detector along the side of the plug while still allowing the plug to fit into the 5 mm diameter hole within the section. A radius on the end of the cartridge allows a 90 degree bend in the cable. Black tape (included) can be placed on either side of the cable on the slab to prevent damage to the cable when the phantom is assembled. FILM Film dosimetry is supported by...

Breast Attachments Breast Attachments are an optional accessory for the Adult ATOM male and female phantoms only. ATOM phantoms do not come configured with breast attachments. All breast attachments are manufactured from 50% glandular/50% adipose equivalent material (BR50/50). They are available in two shapes: standard shape (representative of a patient in the upright position) or with supine shape. Each shape may have a range of available sizes. Customer must indicate if right or left side attachment is desired. FEMALE BREAST ATTACHMENTS The Model 702 Adult ATOM Female does not include...

CT Imaging QA Kit EVALUATE CT PERFORMANCE IN ANTHROPOMORPHIC PHANTOMS The CIRS CT Imaging QA Kit is designed for use in ATOM Dosimetry phantoms. The inserts contained in the kit investigate correlation between the image quality and CT doses. The kit provides various targets for evaluation of two important CT performance parameters: low contrast detectability and spatial resolution in soft tissues and lung regions. The Model 700-QA includes four inserts: (1) lung and (3) soft tissue - cylindrical, spherical and true 3D line pair targets. The diameter of the spheres and cylinders provide a...