X-ray or gamma ray systems or devices – Beam control – Filter
Patent
1998-10-06
2000-12-05
Bruce, David V.
X-ray or gamma ray systems or devices
Beam control
Filter
378149, 378156, G21K 300
Patent
active
061577030
ABSTRACT:
An x-ray beam hardening filter is disclosed. The x-ray beam hardening filter comprises a support member and a beam hardening sheet, the beam hardening sheet having a multidimensional array of regularly spaced apertures. The apertures are configured to have an x-ray transmissive quality. An actuator, engaging the support member, is capable of moving the multidimensional array of apertures into or out of a path of an x-ray beam, thereby selectively introducing varying levels of x-ray energy filtration. In one embodiment, multiple layers of beam hardening sheets are added to the x-ray beam hardening filter to create additional levels of x-ray energy filtration. Advantages of the x-ray beam hardening filter include the relatively small distance the x-ray beam hardening filter must move in order to absorb the incident x-ray beam, the ability to introduce varying levels of x-ray filtration, and the compact structure of the x-ray beam hardening filter.
REFERENCES:
patent: 2638554 (1953-05-01), Bartow et al.
patent: 2825817 (1958-03-01), North
patent: 2837657 (1958-06-01), Craig et al.
patent: 3106640 (1963-10-01), Oldendorf
patent: 3591806 (1971-07-01), Brill et al.
patent: 3778614 (1973-12-01), Hounsfield
patent: 3780291 (1973-12-01), Stein et al.
patent: 3925660 (1975-12-01), Albert
patent: 3936639 (1976-02-01), Barrett
patent: 3944833 (1976-03-01), Hounsfield
patent: 3949229 (1976-04-01), Albert
patent: 3950613 (1976-04-01), Macovski
patent: 3979594 (1976-09-01), Anger
patent: 3983397 (1976-09-01), Albert
patent: 4017730 (1977-04-01), Barrett
patent: 4048496 (1977-09-01), Albert
patent: 4057745 (1977-11-01), Albert
patent: 4096391 (1978-06-01), Barnes
patent: 4144457 (1979-03-01), Albert
patent: 4196351 (1980-04-01), Albert
patent: 4259583 (1981-03-01), Albert
patent: 4260885 (1981-04-01), Albert
patent: 4288697 (1981-09-01), Albert
patent: 4321473 (1982-03-01), Albert
patent: 4323779 (1982-04-01), Albert
patent: 4393127 (1983-07-01), Greschner et al.
patent: 4465540 (1984-08-01), Albert
patent: 4519092 (1985-05-01), Albert
patent: 4651002 (1987-03-01), Anno
patent: 4688242 (1987-08-01), Ema
patent: 5293417 (1994-03-01), Wei et al.
patent: 5303282 (1994-04-01), Kwasnick et al.
patent: 5550378 (1996-08-01), Skillicorn et al.
patent: 5610967 (1997-03-01), Moorman et al.
Gray, "Application of Optical Instrumentation in Medicine VII", Proceedings of the Society of Photo-Optical Instrumentation Engineers, Mar. 25-27, 1979, vol. 173, pp. 88-97.
Curry et al., Christensen's Physics of Diagnostic Radiology, Fourth Edition, Lea & Febiger, 1990, pp. 1-522.
Pastrone Giovanni
Solomon Edward G.
Bruce David V.
Cardiac Mariners, Inc.
Dunn Drew A.
LandOfFree
Beam hardening filter for x-ray source does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Beam hardening filter for x-ray source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam hardening filter for x-ray source will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-968315