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Norland Excell
Bone Densitometry Equipment

Features & Benefits

* Based on October 1998 comparison of central, pencil beam x-ray bone densitometers

6' DXA table - using pencil beam technology
Standard sites: AP spine and proximal femur
Small footprint ideal for any office or mobile facility

Faster scan times:

AP Spine	< 1.5 minutes
Hip	< 2.0 minutes

Exclusive Dynamic Filtration compensates for the widest range in patient thicknesses to ensure every data point receives proper exposure while eliminating photon saturation or starvation
Exclusive 77-step calibration process allows scanning of the widest range of subjects without special calibration or correction of data
Norland-pioneered fracture risk assessment feature provides simplified color reporting for physician and patient
Presents standard BMD (sBMD), using NHANES III data a new standard for total spine and total hip bone densitometry
Lowest price of any axial scanner available anywhere in the world *

Technical Specifications

System
Scanner Description	Pencil beam DXA (dual energy x-ray absorptiometry)
Drive System	Stepper motors, with Kevlar reinforced drive belts
X-ray Source	Stationary anode x-ray tube, air-cooling; 100kV constant potential, 1.3 mA anode current (1.0 mA Japan), focal spot size: 0.5 mm
Filtration	8-level automated samarium filtering (K-edge = 46.8 keV) - minimum filtration is 2.7mm aluminum equivalent
X-ray Detectors	2 NaI scintillation detectors in pulse counting mode
Power	100-120, 220-240 V~,50/60 Hz, 700 VA maximum
Operating Temperature	60°-104°(F) (15°-40°(C))
Relative Humidity	Up to 80% non-condensing
Footprint
Dimensions	Recommended dedicated floorspace: 84"L x 84"W Tabletop size: 72"L (1828 mm) x 35.5"W (902 mm) at 26"H (660 mm) Overall size: 72"L (1828 mm) x 48"W (1220 mm) x 49"H (1245 mm) Table surface to arm (maximum patient thickness): 22"(559 mm)
Weight	400 lbs. (181 kg)
Performance
Scan Sites	AP Spine, Hip, Forearm and Lateral Spine: optional scan modalities: Research, Small subject, Body composition
Scan Time	<1.5 minutes AP Spine, <2.0 minutes Hip, <3.0 minutes Forearm, <4.0 minutes Lateral Spine
BMD Precision	1.0% - AP Spine, 1.2% - Hip, 0.8% - Forearm, 2.4% - Lateral (2 vertebra)
Accuracy	1% (based on hydroxyapatite phantom)
Spatial Resolution
AP Spine	Line Spacing - 1.5 mm (1.0 mm selectable) Point resolution - 1.5 mm (1.0 mm selectable)
Proximal Femur	Line Spacing - 1.0 mm Point resolution - 1.0 mm
Forearm	Line Spacing - 1.0 mm Point resolution - 1.0 mm
Lateral	Line Spacing - 1.0 mm Point resolution - 1.0 mm
Scan Dose	<1.0 mRem typical (AP Spine, Hip, Forearm) and <2 mRem typical (Lateral)
Operation
Active Scan Area	25.5"x 30" (650 mm x 762 mm) - with off-axis scanning capability
Patient Marking	Laser diode, red, class II (less than 1 mW power)
Patient Positioning Aids	AP Spine positioning block, Hip sling with foot separator, Lateral and Forearm positioning aids, scout scan, and laser marking system
Calibration	Automatic with supplied 77-Step calibration standard & QC phantom
Computer Workstation
Computer	IBM compatible PC computer, with 366MHz InTel® CPU (366MHz laptop optional), 32 MByte RAM, 1.44 MByte floppy disk drive, Pointer device (mouse), CD-ROM, fax/modem
Operating System	DOS, Windows® 98
Hard Disk	6.4 GByte minimum, internal (4.0 GByte minimum with laptop option)
Display	15" Super VGA color (LCD screen only with laptop option). Optional flat screen monitor or 17" SVGA monitor available
Printer	HP Color Desk Jet
Tape Backup	HP 14 GByte Backup Tape Drive with tape (not available with laptop option)

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