US3796878A - Rotary support for radiation treatment apparatus - Google Patents

Rotary support for radiation treatment apparatus Download PDF

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Publication number
US3796878A
US3796878A US00194987A US3796878DA US3796878A US 3796878 A US3796878 A US 3796878A US 00194987 A US00194987 A US 00194987A US 3796878D A US3796878D A US 3796878DA US 3796878 A US3796878 A US 3796878A
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US
United States
Prior art keywords
supporting plate
collimator
neutron
generator
high voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00194987A
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English (en)
Inventor
B Offermann
R Barthel
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Licentia Patent Verwaltungs GmbH
Original Assignee
Licentia Patent Verwaltungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Licentia Patent Verwaltungs GmbH filed Critical Licentia Patent Verwaltungs GmbH
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Publication of US3796878A publication Critical patent/US3796878A/en
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/01—Devices for producing movement of radiation source during therapy
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • G21K5/04—Irradiation devices with beam-forming means
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21K—TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR; IRRADIATION DEVICES; GAMMA RAY OR X-RAY MICROSCOPES
    • G21K5/00—Irradiation devices
    • G21K5/10—Irradiation devices with provision for relative movement of beam source and object to be irradiated
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N2005/1085—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy characterised by the type of particles applied to the patient
    • A61N2005/109—Neutrons

Definitions

  • the present invention relates to a neutron radiation treatment apparatus for stationary field and/or pendulum and/or rotational field radiation.
  • the invention more particularly relates to a radiation treatment apparatus which includes a high voltage generator, a neutron generator supplied by the high voltage generator and a collimator which forms a beam of useful rays suited for the intended purpose.
  • the radiation treatment apparatus is particularly suitable as a neutron therapy apparatus.
  • a neutron treatment apparatus which includes a high voltage generator, a neutron generator and a collimator.
  • the high voltage generator supplies power to the neutron generator.
  • the collimator forms a beam of useful rays suitable for radiation treatment.
  • the high voltage generator, the neutron generator and the collimator are rigidly connected together and are fastened to a rotatably mounted supporting plate.
  • the neutron generator and the high voltage generator are fastened to one side of the supporting plate.
  • the collimator is fastened to the other side of the supporting plate.
  • the advantage of the solution of the present invention is that by combining of a high voltage generator, a neutron generator and a collimator into a rigid unit which can be rotated about a stationary treatment table there is obtained an extremely compact design with relatively little space requirement and simultaneously a required high voltage cable leading from the high voltage generator to the neutron generator can be easily attached and moved relative to the treatment table without the danger of undesirable mechanical stresses.
  • This permits rotational radiation with angles of rotation of n X 360 without any difficulty. Since one side of a supporting plate holds the high voltage generator and the neutron generator and the other side of the supporting plate holds the approximately equally as heavy collimator, the resulting weight distribution is very favorable so that finally only slight moments need be absorbed by the bearings of the rotatably mounted supporting plate.
  • the treatment table in accordance with the present invention can remain stationary during neutron radiation treatment even in the case of rotational field radiation. I
  • a high voltage generator, a neutron generator and a collimator are arranged on a support plate which is displaceably, radially mounted on the supporting plate.
  • a columnar guide is provided to hold the displaceably, radially mounted support on the supporting plate. It is a preferred feature of the present invention to provide a spindle which is supported by the supporting plate and which is parallel to the columnar guide to engage in a threaded bushing at the displaceably, radially mounted support. A drive for the spindle may also be provided.
  • the thus realized radial adjustability of the radiation source results in the advantage that even with rotational radiation the distance between a patient or the like and the radiation source can be easily varied. This also provides for infinite variability of the radiation field at the locus of radiation for the rotational field radiation since the radiation fields which can be produced with different sizes of aperture inserts available for the collimator in that the radiation distance can be adapted to the respective location of the nidus in the patient in an optimum manner.
  • the radially mounted support is preferably adapted to hold counterweights.
  • a further feature of the present invention is that the collimator is connected with the neutron generator by means of a connecting tube brought through an opening in the supporting plate, the length of the connecting tube being such that no tilting moment can result in the bearing plane of the supporting plate from the weights of the collimator, the neutron generator and the high voltage generator.
  • a tooth ring is preferably provided at the outer periphery of the supporting plate to rotate the supporting plate, a pinion drive engaging thereinto.
  • FIG. 1 is a partially cross-sectional elevational view of a neutron radiation treatment apparatus incorporating the present invention.
  • FIG. 2 is a cross-sectional view of the neutron radiation apparatus shown in FIG. 1 taken along line 2-2 of FIG. 1.
  • an exemplary embodiment of a neutron radiation treatment apparatus incorporating the present invention includes a collimator l, a neutron generator 2 and a high voltage generator 3, all being arranged on a support 6 and rigidly connected together.
  • the support 6 is displaceably, radially mounted on and is held by a supporting plate 9 which is mounted in a ball bearing 8 and is driven by means of a drive 10 and a pinion 11 which engages in a toothed ring 12 provided at the outer periphery of the supporting plate 9.
  • a patient supporting treatment table 4 is held on a base 5 and is adjustable in a conventional manner, vertically as well as horizontally.
  • the treatment table 4 is disposed below the collimator l which is rigidly connected with the support 6 via a connecting tube 15.
  • a radiation tube 16 is disposed within the connecting tube 15 and a target 7 is disposed on the end of the radiation tube 16 which is opposite the neutron generator 2.
  • the target 7 for example a tritium target, deuterium ions which were accelerated within the neutron generator 2 impinge and produce neutrons according to the nuclear reaction T (d,r He whose energy is substantially 14 million electron volts.
  • the neutron radiation emanating from the target 7 disposed in a central cavity of collimator l is shielded due to the multilayer construction of the collimator 1 except for a useful beam exiting from a conical aperture 20 which is directed toward a patient or the like lying on the treatment table 4.
  • the collimator l is provided with an opening 19 which can be closed by means of a shielding block 18.
  • the support 6 on which the high voltage generator 3, the neutron generator 2 and the collimator 1 are disposed is radially displaceable on the supporting plate 9 by means of a columnar guide arrangement consisting of, for example, two parallel columns 14 which are fastened .to the supporting plate 9 and guide sleeves l3 fastened to the support 6'.
  • the support 6 can be displaced with respect to the supporting plate 9 with the aid of a spindle 21 which engages in a threaded bushing 23 associated with the support 6, a pinion 22 fastened to a shaft of the spindle 21 being driven by a drive (not shown).
  • a high voltage cable 24 leads from the high voltage generator 3 to the neutron generator 2, and a cover 26 is fastened to the inner ring of the ball bearing 8.
  • the ar rangement of the high voltage generator 3, the neutron generator 2 and the collimator 1 is so selected that the collimator l is disposed on the one side of the supporting plate 9 and the high voltage generator 3 as well as the neutron generator 2 are disposed on the other side of the supporting plate 9, tilting moments acting in the plane of the ball bearing 8 can be readily compensated.
  • the collimator 1, the neutron generator 2, the high voltage generator 3, and the treatment table 4, as well as the remaining parts of the neutron radiation treatment apparatus, are desirably housed within an enclosure defined by a floor 28, a ceiling 29, and end wall 30 and a pair of side walls 31 and 32, side wall 32 being shown in FIG. 2.
  • the enclosure may desirably provide shielding and include a second end wall (not illustrated).
  • the base 5 is supported conventionally by an upstanding portion of the floor 28.
  • the collimator 1 is shown, in solid lines, directly above the treatment table 4 which is supported on the base 5.
  • a treatment beam generally designated by the dashed lines 33, extends from the collimator 1, towards the treatment table 4.
  • the side walls 31 and 32, the ceiling 29 and the floor 28 are shown.
  • the collimator 1 may be displaced along an arc of approximately either to the left or to the right so as to occupy any position along the total arc of 210; the end positions of the collimator 1 being illustrated respectively, in phantom, at the numerals 1 and 4".
  • the neutron treatment apparatus is intended only for stationary field and pendulum radiation with an angle of rotation of approximately 210; it is, however, just as possible to design the radiation apparatus of the present invention for angles of rotation of n X 360.
  • the base 5 of the treatment table 4 would merely have to be disposed outside of the-range of the angle of rotation of the collimator 1, possibly by cantelevering the base 5 from the vertical wall 30 of the shielding walls (FIG. 1) and sufficient room would have to be made available available the collimator 1 to rotate.
  • the possibility of radial displacement of the unit consisting of the high voltage generator 3, the neutron generator 2 and the collimator l at the supporting plate 9 makes possible adjustment of the distance of the radiation source (target 7) from a patient or the like even for rotational field radiation so that, for example, in spite of the aperture inserts for the collimator 1 being available commercially only in graduated sizes, the radiation field can be continuously adjusted at the location of the radiation by changing the distance between the target 7 and the treatment table 4.
  • the current supply for the high voltage generator 3, in accordance with the present invention, produces no difficulties contrary to the high voltage input for the neutron generator 2, since a conventional low volt cable can be used which can be made to be relatively flexible.
  • a conventional low volt cable can be used which can be made to be relatively flexible.
  • a neutron radiation treatment apparatus composed of a high voltage generator, a neutron generator connected to be supplied by the high voltage generator, and a collimator arranged to form rays from the generator into a beam
  • said high voltage generator, said neutron generator and said collimator are rigidly connected together and said apparatus comprises a rotatably mounted supporting plate said high voltage generator and said neutron generator being fastened on the side of said supporting plate and said collimator being fastened on the other side of said supporting plate, whereby stationary field, pendulum field and rotational field radiation may be effected selectively.
  • said supporting plate is provided with an opening and further comprising a connecting tube extending through said opening and via which said collimator is connected to said neutron generator, said tube having a length such as to prevent the occurrence of any tilting moment in the bearing plane of said supporting plate due to the weights of said collimator and generators.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiology & Medical Imaging (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Pathology (AREA)
  • Radiation-Therapy Devices (AREA)
US00194987A 1970-11-05 1971-11-02 Rotary support for radiation treatment apparatus Expired - Lifetime US3796878A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702054386 DE2054386B2 (de) 1970-11-05 1970-11-05 Neutronentherapieanlage

Publications (1)

Publication Number Publication Date
US3796878A true US3796878A (en) 1974-03-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00194987A Expired - Lifetime US3796878A (en) 1970-11-05 1971-11-02 Rotary support for radiation treatment apparatus

Country Status (10)

Country Link
US (1) US3796878A (Direct)
CA (1) CA932077A (Direct)
CH (1) CH523075A (Direct)
DE (1) DE2054386B2 (Direct)
FR (1) FR2112482B1 (Direct)
GB (1) GB1313489A (Direct)
IT (1) IT943645B (Direct)
NL (1) NL7115187A (Direct)
SE (1) SE379639B (Direct)
ZA (1) ZA717334B (Direct)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6065676A (en) * 1992-04-17 2000-05-23 Psc Scanning, Inc. Ultra-compact bar-code scanner
CN111905275A (zh) * 2019-05-07 2020-11-10 禾荣科技股份有限公司 中子束产生装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6065676A (en) * 1992-04-17 2000-05-23 Psc Scanning, Inc. Ultra-compact bar-code scanner
US6244510B1 (en) 1992-04-17 2001-06-12 Psc Scanning, Inc. Ultra-compact bar-code scanner
US6460768B2 (en) 1992-04-17 2002-10-08 Psc Scanning, Inc. Ultra-compact bar-code scanner
CN111905275A (zh) * 2019-05-07 2020-11-10 禾荣科技股份有限公司 中子束产生装置
EP3736020A1 (en) * 2019-05-07 2020-11-11 Heron Neutron Medical Corp. Neutron beam generating device
US11510308B2 (en) * 2019-05-07 2022-11-22 Heron Neutron Medical Corp. Neutron beam generating device

Also Published As

Publication number Publication date
FR2112482B1 (Direct) 1976-06-04
SE379639B (Direct) 1975-10-20
DE2054386A1 (Direct) 1972-05-04
NL7115187A (Direct) 1972-05-09
CA932077A (en) 1973-08-14
ZA717334B (en) 1972-07-26
CH523075A (de) 1972-05-31
IT943645B (it) 1973-04-10
FR2112482A1 (Direct) 1972-06-16
DE2054386B2 (de) 1972-05-04
GB1313489A (en) 1973-04-11

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Lanzl et al. KILOCURIE REVOLVING COBALT-60 UNIT FOR RADIATION THERAPY*