 | Nested CT Dose Phantom Kit for Pediatric/Adult Head and Body. |  |
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Introduction The innovative nested CT Dose Phantom can be used with any computed tomography (CT) system designed to image pediatric and adult head and body. Each phantom segment can provide separate dose information. When performing dose profile measurements, the dose phantoms allow the user to collect information for the maximum, minimum and mid-range value of the nominal tomographic section thickness. This essential phantom kit consists of three parts: an adult body phantom, an adult head phantom that doubles as a pediatric body phantom and the new pediatric head phantom, nested together for easy storage and convenient transport. (All are made of solid acrylic with diameters of 32, 16 and 10 cm, respectively.) Each part contains four probe holes around the perimeter, 90° apart and 1 cm from the edge and the pediatric head (center insert) has one probe hole in its center. The inside diameter of the holes is 1.31 cm. Each part includes five acrylic rods for plugging all the holes in the phantom. A sturdy storage and carrying case with wheels and pull handle that holds all three phantoms is included; as an option, a smaller case without wheels is available. Applications The CT Dose Phantoms were designed in accordance with the Food and Drug Administration’s performance standard for diagnostic x-ray systems, which includes regulations specifically applicable to CT systems (21 CFR 1020.33). |
| Specifications Weight Adult body phantom: 25 lb (11.3 kg) Adult head/pediatric body phantom: 5 lb (2.3 kg) Pediatric head phantom: 3 lb (1.3 kg) 3 nested phantoms: 33 lb (15 kg) Dimensions Adult body phantom: 15.5 cm long x 32 cm Ø Adult head/pediatric body phantom: 15.5 cm long x 16 cm Ø Pediatric head phantom: 15 cm long x 10 cm Ø Available Model(s) 76-424-4156 Nested CT Dose Phantom Kit for Pediatric/Adult Head and Body including carrying case with wheels and pull handle 79-424-4150 Nested CT Dose Phantom Kit for Pediatric/Adult Head and Body including carrying case without wheels and pull handle Other CT Dose Phantoms available 76-419-4150 CT Dose Phantom Kit for Pediatric/Adult Head and Body including carrying case with wheels and pull handle 76-419 CT Pediatric Head Dose Phantom with five plugs 76-414 CT Head Dose Phantom with five plugs |  |
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| CT Dose Phantom Kit for Pediatric/Adult Head and Body. | |
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Introduction These phantoms can be used with any computed tomography (CT) system designed to image pediatric and adult head and body. They can separate dose information for each. When performing dose profile measurements, the dose phantoms allow the user to collect information for the maximum, minimum and mid-range value of the nominal tomographic section thickness. This essential phantom kit consists of three parts: an adult body phantom, an adult head phantom that doubles as a pediatric body phantom and the new pediatric head phantom. (All are made of solid acrylic, 15 cm thick, with diameters of 32, 16 and 10 cm, respectively.) Each part contains five probe holes, one in the center and four around the perimeter, 90° apart and 1 cm from the edge. The inside diameter of the holes is 1.31 cm. Each part includes five acrylic rods for plugging all the holes in the phantom. A sturdy storage and carrying case that holds all three phantoms is available as an option and includes wheels and a pull handle. |
| Applications The CT Dose Phantoms were designed in accordance with the Food and Drug Administration’s performance standard for diagnostic x-ray systems, which includes regulations specifically applicable to CT systems (21 CFR 1020.33). Specifications Weight Body phantom: 32 lb (14.5 kg) Head phantom: 8 lb (3.6 kg) Pediatric head phantom: 2.85 lb (1.3 kg) Available Models 76-419-4150 - CT Dose Phantom Kit for Pediatric/Adult Head and Body including carrying case with wheels and pull handle 76-414-4150 - CT Dose Phantom Kit for Adult Head and Body including carrying case 76-419 - CT Pediatric Head Dose Phantom with five plugs 76-414 - CT Head Dose Phantom with five plugs 76-415 - CT Body Dose Phantom with five plugs |
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| CT Ion Chambers for use with CT Dose Kits. | |
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Specifications for 10cc high sensitivity Detector type Vented air ion chamber Volume: 10.1 cc Sensitive length 10.0 cm Chamber material Acrylic (PMMA) Chamber outside diameter 0.5 in ± 0.015 in (12.7mm ± 0.4mm) Chamber inside diameter 0.45 in (11.4mm) Chamber wall thickness 77 mg/cm² Electrode material Aluminum, 1100 Sensitivity 10 R•cm/nC (nominal) Standard calibration 100 kVCP, 5.5 mm Al HVL (NIST Tech. M100) Response uniformity along axis ± 3% over central 90% of active length Beam orientation Normal to chamber axis Leakage current (300 V collection potential) Less than 10-14 A at 10 min polarization time Intensity limits Continuous beam: 31.6 R/sec. (1% recombination loss) Pulsed beam 15.8 mR/pulse (1% recombination loss) Collection time 0.478 MSec Cable length 3 ft (0.9 m) Operating voltage 300 V |  |
 | Specifications for 3.2cc Detector type Vented air ion chamber Volume 3.2 cc Sensitive length 10.0 cm Chamber material Polystyrene Chamber inside diameter 6.4 mm Chamber wall thickness 54 mg/cm² Electrode material Aluminum Sensitivity 10 R•cm/nC (nominal) Standard calibration 100 kVCP, 5.5 mm Al HVL (NIST Tech. M100) Response uniformity along axis ± 3% over central 90% of active length Beam orientation Normal to chamber axis Phantom adapter OD 1.27 ± 0.04 cm (0.50 ± 0.015 in) Leakage current (300 V collection potential) Less than 1013 A at 10 min polarization time, less than 1014 A at 2 hr polarization time Intensity limits Continuous beam: 4.86 kR/min (1% recombination loss) Pulsed beam 51.5 mR/pulse (1% recombination loss) Maximum pulse repetition rate 3.3 kHz Cable length 3 ft (0.9 m) |  |
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