Microtomography using an x-ray tube

Conference · Wed Jan 01 04:00:00 EST 1992 · Transactions of the American Nuclear Society; (United States)

OSTI ID:6453608

Cesareo, R ^[1]; Appoloni, C R ^[2]; Giannini, M ^[1]

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1. Univ. of Rome (Italy)
2. Univ. of Londrina (Brazil)

A computerized tomographic (CT) scanner has been assembled with a geometric resolution of [approximately]25 to 50 [mu]m. This CT scanner, designed and built at the University of Rome [open quotes]La Sapienza[close quotes] has the following components: (1) X-ray tube working between 20 and 55 key with a maximum current of 30 mA; this tube used bremsstrahlung radiation and filtered the primary radiation with absorbers composed of an element or elements to quasi monochromatize the primary radiation; (2) single X-ray Nal(TI), high-purity germanium detector, or an array of detectors; (3) electronic chain with an amplifier, a single-channel analyzer, and a programmable timer-scaler; (4) translation-rotation system allowing for [approximately]1-m error for linear positioning and the equivalent for rotation; (5) IBM-compatible 286 personal computer, which drives both the translation-rotation system and the timer-scaler; and (6) reconstruction program, written in turbo-Pascal, which is able not only to give the reconstructed matrix of linear attenuation coefficients but also to simulate the matrix and the related tomography.

• OSTI ID: 6453608
• Report Number(s): CONF-920919--
• Conference Information: Journal Name: Transactions of the American Nuclear Society; (United States) Journal Volume: 65:1
• Country of Publication: United States
• Language: English

Related Subjects

440800* -- Miscellaneous Instrumentation-- (1990-)
47 OTHER INSTRUMENTATION
BREMSSTRAHLUNG
COMPUTERIZED TOMOGRAPHY
DIAGNOSTIC TECHNIQUES
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
EQUIPMENT
GE SEMICONDUCTOR DETECTORS
MEASURING INSTRUMENTS
NAI DETECTORS
RADIATION DETECTORS
RADIATIONS
SCINTILLATION COUNTERS
SEMICONDUCTOR DETECTORS
SOLID SCINTILLATION DETECTORS
TESTING
TOMOGRAPHY
X-RAY EQUIPMENT
X-RAY TUBES