WO2001011928A1 - Linear accelerator - Google Patents
Linear accelerator Download PDFInfo
- Publication number
- WO2001011928A1 WO2001011928A1 PCT/GB2000/003004 GB0003004W WO0111928A1 WO 2001011928 A1 WO2001011928 A1 WO 2001011928A1 GB 0003004 W GB0003004 W GB 0003004W WO 0111928 A1 WO0111928 A1 WO 0111928A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cells
- accelerator
- coupling
- ratio
- accelerating
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H9/00—Linear accelerators
- H05H9/04—Standing-wave linear accelerators
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/14—Vacuum chambers
- H05H7/18—Cavities; Resonators
Definitions
- the present invention relates to a linear accelerator.
- This beam is apt to kill living cells in its path, hence its use against cancerous cells,
- Some existing radiotherapy devices include a second radiation source which is
- the present invention therefore provides an accelerator comprising a plurality
- the coupling cells being arranged to dictate the ratio of electric field in
- Such an accelerator is eminently suitable for therapeutic use as part of a
- the beam can be
- the beam is relativistic
- the accelerator can be used to take kilovoltage portal images.
- the switchable coupling cell comprises a cavity containing a
- the application likewise relates to the use of an accelerator in which a plurality
- the coupling cells being arranged to dictate the ratio of electric field in
- the application relates to an operating method for an accelerator in
- coupling cells are linked by a coupling cell, the coupling cells being arranged to dictate the ratio of
- Figure 1 is a schematic illustration of a conventional linear accelerator
- Figure 2 shows a desirable electric field in the accelerator of figure 1 ;
- Figure 3 shows a typical electric field as "observed" by an electron being
- Figure 4 shows a linear accelerator according to the present invention
- FIG. 5 shows the variations of the individual coupling coefficients between cell
- Figures 5a and 5b proposes an explanation of figure 5
- Figure 6 shows an electric field seen by an electron for the accelerator of figure
- Figure 7 shows a similar electric field with the rotatable element set to step up
- Figure 8 shows a still further electric field with the rotatable element set to
- a conventional accelerator 100 has a series of accelerating
- Coupling cells such as 106 are
- the cells are numbered starting at the first accelerating cell and
- first and second accelerating cells is cell 2.
- the second accelerating cell is then cell
- the pattern is that of a standing wave illustrated at an instant in time, so the actual E
- the field is ideally positive in cell 1 , zero in cell 2, negative in cell 3,
- the accelerator is sized in relation
- the energy of the electron is such as to render its
- Figure 3 shows a plot of the likely actual E field as observed by the electron
- Figure 4 shows a linear accelerator according to the present invention.
- variable coupling cell 1 08 which comprises a substantially cylindrical
- linear accelerator either to both provide acceleration of particles or for one portion to
- the ratio is very large indeed and the accelerator may well be
- the ratio can be varied smoothly between a moderate
- FIGS 5a and 5b illustrate how this is believed to arise.
- each port will see an H-field of the same polarity (e.g.
- Figures 6 and 7 show the effect on the accelerating cell E fields of a coupling
- the beam output can be of a very low energy
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Radiation-Therapy Devices (AREA)
- Particle Accelerators (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU63060/00A AU6306000A (en) | 1999-08-10 | 2000-08-03 | Linear accelerator |
JP2001515661A JP5178978B2 (en) | 1999-08-10 | 2000-08-03 | Electron accelerator, method of using electron accelerator, method of operating electron accelerator, and radiation therapy apparatus |
US10/049,352 US6710557B1 (en) | 1999-08-10 | 2000-08-03 | Linear accelerator |
EP00949794.2A EP1203514B1 (en) | 1999-08-10 | 2000-08-03 | Linear accelerator |
CA002379935A CA2379935C (en) | 1999-08-10 | 2000-08-03 | Linear accelerator with variable energy inputs |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9918787.4 | 1999-08-10 | ||
GB9918787A GB2354876B (en) | 1999-08-10 | 1999-08-10 | Linear accelerator |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001011928A1 true WO2001011928A1 (en) | 2001-02-15 |
Family
ID=10858870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2000/003004 WO2001011928A1 (en) | 1999-08-10 | 2000-08-03 | Linear accelerator |
Country Status (8)
Country | Link |
---|---|
US (1) | US6710557B1 (en) |
EP (1) | EP1203514B1 (en) |
JP (1) | JP5178978B2 (en) |
CN (1) | CN1190112C (en) |
AU (1) | AU6306000A (en) |
CA (1) | CA2379935C (en) |
GB (1) | GB2354876B (en) |
WO (1) | WO2001011928A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006097697A1 (en) * | 2005-03-12 | 2006-09-21 | Elekta Ab (Publ) | Linear accelerator |
US7397206B2 (en) | 2004-02-01 | 2008-07-08 | Mian Yang Gao Xin Qu Twin Peak Technology Development Inc. | Phase switch and a standing wave linear accelerator with the phase switch |
WO2012119786A1 (en) | 2011-03-10 | 2012-09-13 | Elekta Ab (Publ) | Electron source for linear accelerators |
WO2012126587A2 (en) | 2011-03-14 | 2012-09-27 | Elekta Ab (Publ) | Linear accelerator |
DE102014207906A1 (en) | 2013-04-30 | 2014-10-30 | Elekta Ab (Publ) | Image guided radiotherapy |
WO2020216908A1 (en) * | 2019-04-26 | 2020-10-29 | Elekta Limited | Waveguide for a linear accelerator and method of operating a linear accelerator |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070003010A1 (en) | 2005-04-29 | 2007-01-04 | Varian Medical Systems Technologies, Inc. | Radiation systems with imaging capability |
US20090088625A1 (en) * | 2007-10-01 | 2009-04-02 | Kenneth Oosting | Photonic Based Non-Invasive Surgery System That Includes Automated Cell Control and Eradication Via Pre-Calculated Feed-Forward Control Plus Image Feedback Control For Targeted Energy Delivery |
US10566169B1 (en) * | 2008-06-30 | 2020-02-18 | Nexgen Semi Holding, Inc. | Method and device for spatial charged particle bunching |
JP2012209119A (en) * | 2011-03-29 | 2012-10-25 | Mitsubishi Heavy Ind Ltd | X-ray generator and control method thereof |
US10806409B2 (en) | 2016-09-23 | 2020-10-20 | Varian Medical Systems International Ag | Medical systems with patient supports |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2334139A (en) * | 1998-02-05 | 1999-08-11 | Elekta Ab | Linear Accelerator |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5857924B2 (en) * | 1976-03-31 | 1983-12-22 | 松下電器産業株式会社 | solid state oscillator |
US4286192A (en) * | 1979-10-12 | 1981-08-25 | Varian Associates, Inc. | Variable energy standing wave linear accelerator structure |
US4382208A (en) * | 1980-07-28 | 1983-05-03 | Varian Associates, Inc. | Variable field coupled cavity resonator circuit |
US4629938A (en) * | 1985-03-29 | 1986-12-16 | Varian Associates, Inc. | Standing wave linear accelerator having non-resonant side cavity |
JPS61288400A (en) * | 1985-06-14 | 1986-12-18 | 日本電気株式会社 | Stationary linear accelerator |
JPS6347603U (en) * | 1986-09-16 | 1988-03-31 | ||
JPH01264200A (en) * | 1988-04-13 | 1989-10-20 | Toshiba Corp | Standing wave linear accelerator |
US5381072A (en) * | 1992-02-25 | 1995-01-10 | Varian Associates, Inc. | Linear accelerator with improved input cavity structure and including tapered drift tubes |
JPH1013134A (en) * | 1996-06-24 | 1998-01-16 | Kubota Corp | Receiving antenna for satellite broadcast |
JPH11261316A (en) * | 1998-03-10 | 1999-09-24 | Kubota Corp | Receiving antenna system |
-
1999
- 1999-08-10 GB GB9918787A patent/GB2354876B/en not_active Expired - Fee Related
-
2000
- 2000-08-03 CA CA002379935A patent/CA2379935C/en not_active Expired - Lifetime
- 2000-08-03 JP JP2001515661A patent/JP5178978B2/en not_active Expired - Lifetime
- 2000-08-03 US US10/049,352 patent/US6710557B1/en not_active Expired - Lifetime
- 2000-08-03 EP EP00949794.2A patent/EP1203514B1/en not_active Expired - Lifetime
- 2000-08-03 AU AU63060/00A patent/AU6306000A/en not_active Abandoned
- 2000-08-03 CN CNB00811028XA patent/CN1190112C/en not_active Expired - Lifetime
- 2000-08-03 WO PCT/GB2000/003004 patent/WO2001011928A1/en active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2334139A (en) * | 1998-02-05 | 1999-08-11 | Elekta Ab | Linear Accelerator |
Non-Patent Citations (2)
Title |
---|
JAFFRAY D A ET AL: "Dual-beam imaging for online verification of radiotherapy field placement", WORKSHOP ON THE IMPLEMENTATION OF THREE DIMENSIONAL CONFORMAL RADIOTHERAPY, BETHESDA, MD, USA, 21-22 APRIL 1994, vol. 33, no. 5, International Journal of Radiation Oncology Biology Physics, 1 Dec. 1995, Elsevier, UK, pages 1273 - 1280, XP000964941, ISSN: 0360-3016 * |
TANABE E ET AL: "Compact multi-energy electron linear accelerators", NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH, SECTION - B: BEAM INTERACTIONS WITH MATERIALS AND ATOMS,NL,NORTH-HOLLAND PUBLISHING COMPANY. AMSTERDAM, vol. B10/11, no. PART 02, 1985, pages 871 - 876, XP002103628, ISSN: 0168-583X * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7397206B2 (en) | 2004-02-01 | 2008-07-08 | Mian Yang Gao Xin Qu Twin Peak Technology Development Inc. | Phase switch and a standing wave linear accelerator with the phase switch |
WO2006097697A1 (en) * | 2005-03-12 | 2006-09-21 | Elekta Ab (Publ) | Linear accelerator |
CN101142859B (en) * | 2005-03-12 | 2011-01-19 | 伊利克塔股份有限公司 | Linear accelerator |
WO2012119786A1 (en) | 2011-03-10 | 2012-09-13 | Elekta Ab (Publ) | Electron source for linear accelerators |
WO2012126587A2 (en) | 2011-03-14 | 2012-09-27 | Elekta Ab (Publ) | Linear accelerator |
US8552667B2 (en) | 2011-03-14 | 2013-10-08 | Elekta Ab (Publ) | Linear accelerator |
DE102014207906A1 (en) | 2013-04-30 | 2014-10-30 | Elekta Ab (Publ) | Image guided radiotherapy |
WO2020216908A1 (en) * | 2019-04-26 | 2020-10-29 | Elekta Limited | Waveguide for a linear accelerator and method of operating a linear accelerator |
Also Published As
Publication number | Publication date |
---|---|
GB2354876A (en) | 2001-04-04 |
GB2354876B (en) | 2004-06-02 |
CN1408196A (en) | 2003-04-02 |
GB9918787D0 (en) | 1999-10-13 |
EP1203514A1 (en) | 2002-05-08 |
JP5178978B2 (en) | 2013-04-10 |
JP2003506839A (en) | 2003-02-18 |
US6710557B1 (en) | 2004-03-23 |
EP1203514B1 (en) | 2013-06-19 |
CA2379935A1 (en) | 2001-02-15 |
AU6306000A (en) | 2001-03-05 |
CN1190112C (en) | 2005-02-16 |
CA2379935C (en) | 2008-11-04 |
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