Dual energy scanning beam laminographic x-radiography
Abstract
A multiple x-ray energy level imaging system includes a scanning x-ray beam and two detector design having a first low x-ray energy sensitive detector and a second high x-ray energy sensitive detector. The low x-ray energy detector is placed next to or in front of the high x-ray energy detector. The low energy sensitive detector has small stopping power for x-rays. The lower energy x-rays are absorbed and converted into electrical signals while the majority of the higher energy x-rays pass through undetected. The high energy sensitive detector has a large stopping power for x-rays as well as it having a filter placed between it and the object to absorb the lower energy x-rays. In a second embodiment; a single energy sensitive detector is provided which provides an output signal proportional to the amount of energy in each individual x-ray it absorbed. It can then have an electronic threshold or thresholds set to select two or more energy ranges for the images. By having multiple detectors located at different positions, a dual energy laminography system is possible. 6 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Southeastern University Research Association
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 644432
- Patent Number(s):
- 5742660
- Application Number:
- PAN: 8-781,722; TRN: 98:007959
- Assignee:
- Southeastern Universities Research Association, Inc., Newport News, VA (United States)
- DOE Contract Number:
- AC05-84ER40150
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 21 Apr 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 55 BIOLOGY AND MEDICINE, BASIC STUDIES; BIOMEDICAL RADIOGRAPHY; DESIGN; X-RAY EQUIPMENT; RADIATION DETECTORS; IMAGES
Citation Formats
Majewski, S, and Wojcik, R F. Dual energy scanning beam laminographic x-radiography. United States: N. p., 1998.
Web.
Majewski, S, & Wojcik, R F. Dual energy scanning beam laminographic x-radiography. United States.
Majewski, S, and Wojcik, R F. Tue .
"Dual energy scanning beam laminographic x-radiography". United States.
@article{osti_644432,
title = {Dual energy scanning beam laminographic x-radiography},
author = {Majewski, S and Wojcik, R F},
abstractNote = {A multiple x-ray energy level imaging system includes a scanning x-ray beam and two detector design having a first low x-ray energy sensitive detector and a second high x-ray energy sensitive detector. The low x-ray energy detector is placed next to or in front of the high x-ray energy detector. The low energy sensitive detector has small stopping power for x-rays. The lower energy x-rays are absorbed and converted into electrical signals while the majority of the higher energy x-rays pass through undetected. The high energy sensitive detector has a large stopping power for x-rays as well as it having a filter placed between it and the object to absorb the lower energy x-rays. In a second embodiment; a single energy sensitive detector is provided which provides an output signal proportional to the amount of energy in each individual x-ray it absorbed. It can then have an electronic threshold or thresholds set to select two or more energy ranges for the images. By having multiple detectors located at different positions, a dual energy laminography system is possible. 6 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Apr 21 00:00:00 EDT 1998},
month = {Tue Apr 21 00:00:00 EDT 1998}
}