Quasi-monochromatic X-ray Source for Mammography
用于乳腺X线摄影的准单色X射线源
基本信息
- 批准号:6486321
- 负责人:
- 金额:$ 37.44万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2002
- 资助国家:美国
- 起止时间:2002-09-30 至 2004-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Description (provided by applicant): The objective of the proposed research is
to construct a prototype narrow-bandwidth x-ray source for mammography using a
thin, efficient hybrid radiator driven by a relativistic electron beam of
moderate energy and current. The high x-ray yield (photons/electron) of the
source permits the use of modest electron-beam currents, preventing thermal
damage to the radiator itself. The radiator is thin, permitting the electron
beam to pass through it many times, thereby proportionally increasing the
emitted x-ray flux. Since the source is inherently collimated and
quasi-monochromatic, it will produce higher quality radiographic images while
lowering the dose to the patient. Phase I experiments have demonstrated intense
quasi-monochromatic x-rays in the range optimum for mammography (15 to 25 keV).
Calculations of the x-ray yield and the average current passing through the
radiator have demonstrated that there is adequate flux for imaging. The
research will proceed by improving the design of the thin hybrid radiator and
experimentally demonstrating its feasibility by producing images of inanimate
phantoms. The potential for successful development of the prototype imaging
system is very high because our Phase I research has already experimentally
demonstrated, both electron recycling and narrow bandwidth, tunable x-ray
generation. These results indicate that a high quality mammogram can be
generated in less than 3 seconds.
描述(由申请人提供):拟议研究的目的是
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Melvin Arthur Piestrup其他文献
Melvin Arthur Piestrup的其他文献
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{{ truncateString('Melvin Arthur Piestrup', 18)}}的其他基金
Quasi-monochromatic X-ray Source for Mammography
用于乳腺X线摄影的准单色X射线源
- 批准号:
6669658 - 财政年份:2002
- 资助金额:
$ 37.44万 - 项目类别:
QUASI-MONOCHROMATIC X-RAY SOURCE FOR MAMMOGRAPHY
用于乳房X线照相术的准单色X射线源
- 批准号:
6140973 - 财政年份:2000
- 资助金额:
$ 37.44万 - 项目类别:
HIGH INTENSITY X-RAY SOURCE FOR MEDICAL IMAGING
用于医学成像的高强度 X 射线源
- 批准号:
2287146 - 财政年份:1996
- 资助金额:
$ 37.44万 - 项目类别:
HIGH INTENSITY X RAY SOURCE FOR MEDICAL IMAGING
用于医学成像的高强度 X 射线源
- 批准号:
6078289 - 财政年份:1996
- 资助金额:
$ 37.44万 - 项目类别:
HIGH INTENSITY X RAY SOURCE FOR MEDICAL IMAGING
用于医学成像的高强度 X 射线源
- 批准号:
2718042 - 财政年份:1996
- 资助金额:
$ 37.44万 - 项目类别:
A QUASIMONOCHROMATIC X-RAY SOURCE FOR MAMMOGRAPHY
乳房X线照相术的准单色X射线源
- 批准号:
3493351 - 财政年份:1993
- 资助金额:
$ 37.44万 - 项目类别:
A METAL-OXIDE, CHARACTERISTIC-LINE X-RAY IMAGING SOURCE
金属氧化物特征线 X 射线成像源
- 批准号:
3501341 - 财政年份:1988
- 资助金额:
$ 37.44万 - 项目类别:
CHANNELING RADIATION FOR NON-INVASIVE ANGIOGRAPHY
用于非侵入性血管造影的引导辐射
- 批准号:
3508571 - 财政年份:1986
- 资助金额:
$ 37.44万 - 项目类别:
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