Hologic DISCOVERY A, Technical Manual

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Discovery QDR Series Technical Manual
1-10
1.3 Product Specifications
SPECIFICATION MODEL DEFINITION
Scanning Method All Multi-detector array, indexing table, and motorized C-arm
X-ray System All Switched Pulse Dual-Energy X-ray tube, operating at 100 and
140kV, 5mA avg. at 50% duty cycle, 2.5mA avg. at 25% duty
cycle (30sec. maximum), Tungsten target
Detector System A 216 multi-channel detector consisting of CdWO
4
scintillators
coupled to silicon diodes
SL/C/ W 128 multi-channel detector consisting of CdWO
4
scintillators
coupled to silicon diodes
Scanning Sites A Lumbar spine (in AP and lateral projections), proximal femur
(hip) forearm, IVA Spine, and whole body
SL Lumbar spine (in AP and lateral projections), proximal femur
(hip), IVA Spine, and forearm
W Lumbar spine (in AP and decubitus lateral projections),
proximal femur (hip), forearm, IVA spine (AP only) and whole
body
C Lumbar spine (in AP and decubitus lateral projections),
proximal femur (hip), forearm, and IVA spine (AP only)
Scan Region A 1.95m (76.77 in.) x.65m (25.59 in.) maximum
SL 96cm (38 in.) x .65m (25.59 in.) maximum
W 1.97m (77.5 in.) x.65m (25.59 in.) maximum
C .96m (38 in.) x.51m (20 in.) maximum
Scatter Radiation All Less than 10
µ
Gy/h (1mrad/h) at 2m (79 in.) from the center of
the X-ray beam for all scans
Leakage Radiation All The Discovery meets the requirements of 21 CFR 1020.30(k)
for leakage from the X-ray source
External Shielding
Requirement All Contact state regulatory agency.
Calibration All Self Calibrating using Hologic Automatic Internal Reference
System. Operator calibration NOT required.