WO2006021230A1 - Dispositif d'irradiation pourvu d'une porte escamotable - Google Patents

Dispositif d'irradiation pourvu d'une porte escamotable Download PDF

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Publication number
WO2006021230A1
WO2006021230A1 PCT/EP2004/011793 EP2004011793W WO2006021230A1 WO 2006021230 A1 WO2006021230 A1 WO 2006021230A1 EP 2004011793 W EP2004011793 W EP 2004011793W WO 2006021230 A1 WO2006021230 A1 WO 2006021230A1
Authority
WO
WIPO (PCT)
Prior art keywords
irradiation device
door
treatment
shield
access
Prior art date
Application number
PCT/EP2004/011793
Other languages
German (de)
English (en)
Other versions
WO2006021230A8 (fr
Inventor
Eugen MÜNCH
Original Assignee
Rhön-Klinikum AG
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 Rhön-Klinikum AG filed Critical Rhön-Klinikum AG
Priority to EP04790617A priority Critical patent/EP1789135A1/fr
Publication of WO2006021230A1 publication Critical patent/WO2006021230A1/fr
Publication of WO2006021230A8 publication Critical patent/WO2006021230A8/fr

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Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
    • 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
    • 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
    • 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
    • A61N2005/1087—Ions; Protons
    • 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
    • A61N2005/1092—Details
    • A61N2005/1094—Shielding, protecting against radiation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Definitions

  • the invention relates to an irradiation device for proton and / or ion beam therapy according to the preamble of claim 1.
  • Such radiation devices also referred to as ion-therapy accelerators, generally have an accelerator system for generating and accelerating the ions to the desired energy, ie an irradiation source, as well as patient treatment rooms and recreation rooms for the operating personnel.
  • ion beams that is to say protons and heavy ions
  • ion beams are used for the irradiation of tumor tissues.
  • ion-therapy systems are planned for routine clinical use and are already being set up or are about to be completed.
  • secondary radiation is generated at various points, which are generated by slowing down processes of the high-energy ions with matter.
  • secondary radiation in part also neutron radiation, is produced.
  • the proportion of the charged secondary radiation can generally be easily shielded and therefore does not present a major problem.
  • This neutron radiation has a strong directional dependence, that is to say it is directed downstream from the point of production and runs in a so-called radiation cone. essentially has an opening angle of approximately ⁇ 20 ° with respect to the ion beam axis.
  • the shielding of the resulting radiation, in particular the neutron radiation is of great importance.
  • WO 01/3865 describes a shielded room, called the patient treatment or therapy room, for ion beam therapy. This is designed so that neutrons are shielded into the energy range GeV.
  • the access to this space has at least two shielding elements which are offset from one another in the longitudinal direction and which originate from opposite walls of the access and cover more than half the clear width of the access.
  • a disadvantage here is that the access is downstream, that is to say in the forward-looking neutron cone, that is to say in the region of the main radiation intensity of the neutrons.
  • the access to the patient treatment room also referred to as access labyrinth
  • the access labyrinth due to the arrangement of the walls serving to shield the neutrons, has a large spatial extent, thus occupying a not insignificant place.
  • the object of the invention is therefore to design an irradiation device having at least one treatment space into which a therapy beam is introduced in such a way that the shielding of the treatment space is designed such that the access is better protected against neutron radiation and that for access space required is small and thus a very compact arrangement of the treatment space in the irradiation device can be realized.
  • an irradiation device for proton and / or ion beam therapy which has the features mentioned in claim 1 and comprises a radiation source and at least one treatment room having a shield and a treatment site, wherein a therapy beam is introduced into the treatment space ,
  • the irradiation device is characterized in that the access comprises at least one-preferably-vertically and / or horizontally-movable door, which is part of the shield.
  • the irradiation device is distinguished by the fact that the door seen from the treatment site-viewed in the direction of the therapy beam-is arranged at the same height as the treatment site or upstream of it.
  • the access Since the main intensity of the neutron radiation generated at the treatment site, that is to say in the patient, is directed downstream, access at the level of the treatment site and / or in the area upstream of the jet is only burdened by relatively low neutron radiation.
  • the access has a door, which is part of the shield, and when it is closed, itself acts as a shield.
  • the door in the closed state, shields the building parts surrounding the treatment space from neutron radiation and performs the same function -A-
  • the shielding of the access is realized only by means of the door and thus the required space for access is very small.
  • the horizontal and / or vertical movement of the door allows space-saving opening and closing of the access. In comparison, when moving the door by pivoting additional space would be kept either in the treatment room or access. If the door is moved vertically, the movement is carried out perpendicular to the plane defined by the base of the door. When the door is moved horizontally, it is only moved to the right and / or left along the wall of the screen. Thus, no separate space is to be kept free in front of or behind the door and / or the wall.
  • the access is virtually integrated into the wall of the shield and the space required is very small. Thus, the shielding of the treatment rooms can be made very compact.
  • the at least one door is retractable into the ground. If the door is completely lowered, patients can be brought into the treatment room or operators can enter it. Due to the sinking in the floor underneath the door, there is no room for a door in the open state on the level of the treatment room. This space would not be insignificant, since the door generally has a width of approximately 2.5 m and a considerable thickness. Thus, a space-saving access is realized. Both the treatment space and the access can be made optimally small and very compact.
  • the at least one door is inserted into the wall of the shield located next to the door. retractable.
  • the right or left wall can be provided for sinking the door.
  • the wall of the shield next to the door is of course designed so that when the door is closed, that is to say when the door is not sunk in the wall, the shielding through this wall area is just as effective as the shielding of the remaining wall of the treatment room , This can be realized either by the fact that the wall is made thicker in these areas, or, if the thickness is the same, different, more effective material in the screening effect.
  • the door can be moved horizontally on rollers and / or on rails. Due to the fact that the door, due to the density of the material serving for shielding, generally has a high weight of approximately 30 to 40 tons, it is advantageous to realize it horizontally movable on rails or on castors.
  • the irradiation device is characterized in that the at least one door is divisible.
  • Divisibility of the door means that it can be divided into, for example, two separately movable elements designated as door segments. Each of these door segments has a smaller weight than the entire door and is thus easier to move vertically and / or horizontally. It is also possible to realize different accesses if required. A wide access is necessary, for example, when the patient is pushed into the treatment room on the patient couch. If only the operator personnel, for example a nurse, enters the treatment space, a relatively narrow access is required and it is necessary will generally be enough to open only one door segment. Since the opening and closing of the door usually takes about 30 seconds due to the high weight, a faster access can be made possible by using door segments.
  • the door is characterized by the fact that this material has the shielding. Since the door, like the walls, has shielding material, it ensures that the shielding effect of the door corresponds to the wall of the shielding. This means that the shielding through the door and the wall is equally effective and thus the neutron radiation generated in the treatment space is uniformly shielded by means of the shield, door and wall.
  • FIG. 2 shows a radiation source around which star-shaped treatment spaces are arranged
  • FIG. 1 shows an irradiation device 1 which comprises a radiation source 3 and a high-energy beam 5.
  • the radiation source 3 is the source for the ions used for the irradiation of a patient, the ions emerging from the radiation source 3 having the energy necessary for the irradiation.
  • the radiation source 3 comprises an ion source, which generates the ions, and a therapy accelerator, in which the ions are accelerated to the necessary energy.
  • the radiation source 3 may comprise a synchrotron-comprising therapy accelerator or a cyclotron-comprising therapy accelerator. It is also possible to use other therapy accelerators.
  • ions that emerge from the radiation source 3 have the ion species with the ion energy that is used for the tumor therapy.
  • the ion beam emerging from the radiation source 3 is referred to as a high-energy beam 5 and extends in the direction indicated by the arrow 7 away from the radiation source 3 to the right.
  • the direction indicated by the arrow 7 from the radiation source to the patient is referred to below as downstream.
  • the opposite direction from the patient to the radiation source, indicated by the arrow 9, will be referred to as jet upward.
  • the high-energy beam 5 is guided in a main beam guide 11. From the main beam guide 11, a therapeutic beam 13 is deflected from the high-energy beam 5.
  • a plurality of therapy beams 13 are deflected out of the high-energy beam 5 at an angle ⁇ designated by 15.
  • Four therapy beams 13 are shown here by way of example.
  • three therapy beams 13 are deflected at an angle 15 of approximately 45 °, and a therapy beam 13 is deflected at an angle 15 of FIG 0 °.
  • a treatment room 19 At the end 17 of the respective therapy beam 13 is a treatment room 19, which has a treatment location 21.
  • the treatment site 21 denotes the location at which the therapy beam 13 interacts with the patient, not shown here.
  • the treatment space 19 is surrounded by a shield 23, here represented only by a circle.
  • the irradiation device 1 has at least one, here four treatment spaces 19. Each treatment room 19 is supplied with a separate therapy beam.
  • FIG. 2 shows the radiation source 3 with high-energy beams 5 deflected at different points of the radiation source 3.
  • the arrangement is referred to as star-shaped. Identical parts are provided with the same reference numerals, so that reference is made to the description of FIG. 1 in this respect. Different possibilities of arranging treatment rooms 19 at the high energy beam 5 are shown.
  • the arrangement with the reference numeral 25 on the left in FIG. 2 has therapy beams 13 arranged on the right and left of the high energy beam 5 with treatment chambers 19 arranged at the end 17 thereof.
  • Reference numeral 27 denotes an arrangement of a treatment space 19 on a therapy beam 13, which is deflected from the high-energy beam 5 at 0 °.
  • This arrangement 27 can have a treatment space 19 which has a greater spatial extent than the other treatment spaces 19. This is made possible by the fact that more space is available through the singular arrangement of a single treatment space 19 on the high-energy beam 5.
  • therapy beams 13 are deflected out of the particle beam 5 at adjoining points and treatment rooms 19 are arranged. The deflection takes place in each case at the same angle 15 of substantially 45 °, so that the treatment chambers 19 are arranged substantially parallel next to one another in a row.
  • deflect these therapy beams 13 in an angle from the high-energy beam 5, and to deflect them such that the treatment rooms 19 are arranged next to each other, one row in one floor and the other row of treatment rooms 19 is arranged in an above or below floor, that is, in another level.
  • deflection bridges can be used.
  • FIG. 3 shows an arrangement of four treatment rooms 19. Identical parts are provided with the same reference numerals, so that reference is made to the description of the previous figures.
  • a therapeutic beam 13 is deflected at three points in each case at an angle 15 of essentially 45 ° and respectively introduced into a treatment space 19.
  • the treatment site 21 is to be recognized.
  • the treatment site 21 has a patient couch 33 to which the patient, who is not shown here, lies during the treatment, ie the irradiation with ions.
  • Shield 23 is likewise shown.
  • Shield 23 has walls 34 which have a hydrogen-containing material, preferably concrete and / or plaster and / or paraffin.
  • a door 35 is arranged which closes a passage 37.
  • the wall 34 is designed thicker than on the side walls of the shield 23.
  • additional Ablemate ⁇ material is provided. This has metal, preferably iron or lead.
  • For the walls 34 is preferably also a Barith concrete designated monolithic concrete used.
  • another water-containing material in particular gypsum; That saves concrete.
  • the proportion of water in this material is preferably about 25% by weight.
  • Gypsum preferably hardened or hardened gypsum, which has CaSO 4 x 2H 2 O chemically, is particularly suitable for absorbing radiation.
  • the water bound in plaster also called water of crystallization, with a weight proportion of 5% to 20%, provides, like concrete, protons.
  • regular concrete also has smaller amounts of metals such as calcium, aluminum, iron or barium and silicon in addition to the bound water.
  • gypsum has a lower density of 2.1 g / cm 3 than regular Be ⁇ tone whose density varies depending on the version between about 2.3 g / cm 3 to 2.8 g / cm 3 .
  • gypsum with the same shielding effect is lighter than concrete.
  • the walls 34 of the shielding 23 can be constructed of individual shielding elements, called shielding modules.
  • the shielding elements can be constructed such that they have only one class of material, for example metal, or a material combination, for example concrete and metal.
  • the structure of the shield 23 is adjacent each other arranged treatment rooms 19 particularly platzspa ⁇ rend possible.
  • the shielding 23 of a treatment space 19 preferably has only one wall 34 in the area in which the shields 23 of two adjacent treatment rooms adjoin one another, so that this wall 34 forms part of the shields 23 of two treatment spaces 19 is.
  • individual shielding elements are advantageously used and permit a flexible embodiment of the shielding 23 of all treatment rooms 19.
  • the access 37 of a treatment room is, as already mentioned, realized by the door 35 and disposed at the height of the treatment location 21 in the shield 23. It is also conceivable to arrange the access 37 further upstream. This is advantageous because secondary radiation, in particular neutron radiation, is produced at the treatment site 21 by the interaction of the high-energy ions with the tissue of the patient, not shown here. This neutron radiation is downstream.
  • the cone of the neutron radiation is indicated here by the reference numeral 39 and has an opening angle with respect to the axis of the therapy beam 13 of approximately ⁇ 20 °.
  • the shielding of this neutron cone 39 with respect to regions outside the treatment space takes place downstream of the wall 34, which, as already mentioned, has metal.
  • the door 35 is part of the shield 23 and has the same material as the walls 34 of the shield 23. This has the advantage that, when the door 35 is closed, a closed shield 23 is created, which completely opens the treatment space 19 to the outside shields.
  • the door 35 is designed to be vertically and / or horizontally movable. Preferably, the door is designed so that it can be lowered vertically into the floor of the treatment room. But it is also possible, the door 35 laterally, so either in the wall 34 of the shield Ab ⁇ 23 right or left of the door 35 to sink.
  • the door 35 is divisible.
  • the door 35 must have a certain minimum width due to the fact that the patient on the Patien ⁇ tenliege 33 is brought into the treatment room 19 by this, the patient to the treatment site 21. Because of this minimum width and a predetermined height, the door 35 is generally about 2 m wide and about 2.5 m high and has a thickness of about 2.5 m.
  • an unillustrated sub-segment of the door 35 can be sunk into the right wall 34 of the shield 23 and the other sub-segment of the door 35 in the left wall 34 of the Ab ⁇ shield 23.
  • the divisible door 35 allows, if not the entire width access is needed, so if, for example, only one person has to enter the treatment room, only a partial segment of the door 35 to open. Since, as already mentioned, the door 35 has a considerable weight and therefore requires the opening and closing of the door 35 a certain time, it may be very advantageous to open only a door segment and thus allow quick access to the treatment room.
  • the door 35 is integrated into the shield 23, so in the closed state is part of the shield 23, the arrangement of the treatment rooms 19 is particularly space-saving possible. Furthermore, the fact that the door 35 has the same material as the shield 23 guarantees optimum shielding of the neutron radiation generated in the treatment space.
  • the movement of the door 35 must be effected in a suitable manner, preferably by an electric, pneumatic and / or hydraulic drive. It is further provided to realize the horizontal movement of the door 35 on rails or on wheels.
  • such an arrangement of treatment rooms 19 arranged side by side in a row is also provided in at least two levels of a building.
  • the high-energy beam 5 is deflected not only in one plane, but at an angle to this plane. It is then preferably introduced into a treatment space 19 from above and deflected there, for example, into a horizontal beam or directed into a gantry 31, which permits the irradiation of a patient at different angles.
  • a door serving as an emergency and / or service access which is not shown here, can still be provided at a different location of the screen 23.
  • the Be ⁇ radiation device 1 can be constructed very compact without any loss of security.
  • the use of the radiation device is therefore very intensive and cost-effective, because the individual treatment rooms 19 are supplied with separate, controllable, therefore also switchable, therapy beams 13. Since the treatment rooms 19 are optimally shielded from each other, a treatment room 19 can be entered by the medical operator, even if 19 irradiations are performed in adjacent treatment rooms.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Radiation-Therapy Devices (AREA)

Abstract

L'invention concerne un dispositif d'irradiation (1) comprenant une source d'irradiation (3), au moins une chambre de traitement (19) pourvue d'un blindage (23) et d'un emplacement de traitement (21), dans laquelle un faisceau thérapeutique (13) est introduit, et au moins un accès (37) menant à la chambre de traitement (19). Cet accès (37) est caractérisé en ce qu'il comporte au moins une porte (35) pouvant être déplacée, de préférence de manière verticale et/ou horizontale. Cette porte (35) fait partie du blindage (23), et vu de l'emplacement de traitement (21), ladite porte est disposée à la même hauteur que l'emplacement de traitement (21) ou en amont de celui-ci, par rapport au faisceau thérapeutique (13).
PCT/EP2004/011793 2004-08-19 2004-10-19 Dispositif d'irradiation pourvu d'une porte escamotable WO2006021230A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04790617A EP1789135A1 (fr) 2004-08-19 2004-10-19 Dispositif d'irradiation pourvu d'une porte escamotable

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004041063.1 2004-08-19
DE102004041063A DE102004041063A1 (de) 2004-08-19 2004-08-19 Bestrahlungseinrichtung mit versenkbarer Tür

Publications (2)

Publication Number Publication Date
WO2006021230A1 true WO2006021230A1 (fr) 2006-03-02
WO2006021230A8 WO2006021230A8 (fr) 2006-07-13

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EP (1) EP1789135A1 (fr)
DE (1) DE102004041063A1 (fr)
WO (1) WO2006021230A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000426A (en) * 1975-05-15 1976-12-28 Aita Konstantinovna Zaitseva Apparatus for feeding parts in ion-beam machining
US4134017A (en) * 1976-07-09 1979-01-09 C.G.R.-Mev Radiation device using a beam of charged particles
EP0314231A2 (fr) * 1987-10-28 1989-05-03 Philips Electronics Uk Limited Collimateur à lames multiples et dispositif l'utilisant
US20030155530A1 (en) * 2000-01-14 2003-08-21 Nabil Adnani Linac neutron therapy and imaging

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1509679A1 (de) * 1965-06-02 1969-02-06 Maschf Augsburg Nuernberg Ag Verschlusstor gegen hohen Druck und hohe Temperatur
US4112306A (en) * 1976-12-06 1978-09-05 Varian Associates, Inc. Neutron irradiation therapy machine
DE3622659A1 (de) * 1986-07-05 1988-01-21 Gerhard Illi Strahlenschutztor
US4870287A (en) * 1988-03-03 1989-09-26 Loma Linda University Medical Center Multi-station proton beam therapy system
EP0864337A3 (fr) * 1997-03-15 1999-03-10 Shenzhen OUR International Technology & Science Co., Ltd. Technique d'irradiaton tridimensionelle avec des particules chargées ayant des propriétés de crête de Bragg, et appareil correspondant
EP0986070B1 (fr) * 1998-09-11 2010-06-30 GSI Helmholtzzentrum für Schwerionenforschung GmbH Dispositif de thérapie par faisceau d'ions et procédé d'exploitation du dispositif
DE10010523C2 (de) * 2000-03-07 2002-08-14 Schwerionenforsch Gmbh Ionenstrahlanlage zur Bestrahlung von Tumorgewebe
DE10235116B4 (de) * 2002-08-01 2005-03-17 Gesellschaft für Schwerionenforschung mbH Abgeschirmter Raum für die Ionentherapie für Neutronen bis in den Energiebereich GeV
DE10261099B4 (de) * 2002-12-20 2005-12-08 Siemens Ag Ionenstrahlanlage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4000426A (en) * 1975-05-15 1976-12-28 Aita Konstantinovna Zaitseva Apparatus for feeding parts in ion-beam machining
US4134017A (en) * 1976-07-09 1979-01-09 C.G.R.-Mev Radiation device using a beam of charged particles
EP0314231A2 (fr) * 1987-10-28 1989-05-03 Philips Electronics Uk Limited Collimateur à lames multiples et dispositif l'utilisant
US20030155530A1 (en) * 2000-01-14 2003-08-21 Nabil Adnani Linac neutron therapy and imaging

Also Published As

Publication number Publication date
DE102004041063A1 (de) 2006-02-23
EP1789135A1 (fr) 2007-05-30
WO2006021230A8 (fr) 2006-07-13

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