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FR2346754A1 - Ionisation radiation therapy source - irradiates guided focussed beam with intensification at periphery of field to compensate total dose reduction - Google Patents

Ionisation radiation therapy source - irradiates guided focussed beam with intensification at periphery of field to compensate total dose reduction

Info

Publication number
FR2346754A1
FR2346754A1 FR7707990A FR7707990A FR2346754A1 FR 2346754 A1 FR2346754 A1 FR 2346754A1 FR 7707990 A FR7707990 A FR 7707990A FR 7707990 A FR7707990 A FR 7707990A FR 2346754 A1 FR2346754 A1 FR 2346754A1
Authority
FR
France
Prior art keywords
field
dose
applied dose
total dose
radiation therapy
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.)
Withdrawn
Application number
FR7707990A
Other languages
French (fr)
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Publication of FR2346754A1 publication Critical patent/FR2346754A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (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

The irradiation unit for ionising radiation, esp. for use in radiation therapy, comprises a radiation source and appts. for guiding the narrowly focused beam over the field to be irradiated. In the peripheral region of the field to be irradiated, the applied dose per element of area is increased by a control unit (16) connected to the irradiation unit (1), in order to compensate the reduction in total dose received in this peripheral region. If the applied dose per element of area is uniform over the entire field to be irradiated, the result is a weakening in total dose around the edge, due to the fact that lateral secondary irradiation from adjacent areas in this peripheral strip is considerably reduced by comparison with the more central parts of the field. By compensating with an increased applied dose, the total received dose is made more uniform across the entire field. The irradiation unit (1) comprises a detector (6) which measures the applied dose in each region, while the control unit (16) does not move on from one element of area to the next until the desired applied dose in each element has been reached. Mechanical two-dimensional pivoting of the radiation source (2) is pref. used to direct the beam (5).
FR7707990A 1976-03-30 1977-03-17 Ionisation radiation therapy source - irradiates guided focussed beam with intensification at periphery of field to compensate total dose reduction Withdrawn FR2346754A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762613620 DE2613620A1 (en) 1976-03-30 1976-03-30 IRRADIATION SYSTEM FOR IONIZING RADIATION

Publications (1)

Publication Number Publication Date
FR2346754A1 true FR2346754A1 (en) 1977-10-28

Family

ID=5973902

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7707990A Withdrawn FR2346754A1 (en) 1976-03-30 1977-03-17 Ionisation radiation therapy source - irradiates guided focussed beam with intensification at periphery of field to compensate total dose reduction

Country Status (2)

Country Link
DE (1) DE2613620A1 (en)
FR (1) FR2346754A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028971A2 (en) * 1993-06-09 1994-12-22 Wisconsin Alumni Research Foundation Radiation therapy system
US5548627A (en) * 1992-03-19 1996-08-20 Wisconsin Alumni Research Foundation Radiation therapy system with constrained rotational freedom
US5661773A (en) * 1992-03-19 1997-08-26 Wisconsin Alumni Research Foundation Interface for radiation therapy machine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR870002693A (en) * 1986-09-13 1988-05-28 김진경 Computer Therapy by Cancer Cell Location Tracking
US5475729A (en) * 1994-04-08 1995-12-12 Picker International, Inc. X-ray reference channel and x-ray control circuit for ring tube CT scanners

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5548627A (en) * 1992-03-19 1996-08-20 Wisconsin Alumni Research Foundation Radiation therapy system with constrained rotational freedom
US5661773A (en) * 1992-03-19 1997-08-26 Wisconsin Alumni Research Foundation Interface for radiation therapy machine
US5724400A (en) * 1992-03-19 1998-03-03 Wisconsin Alumni Research Foundation Radiation therapy system with constrained rotational freedom
WO1994028971A2 (en) * 1993-06-09 1994-12-22 Wisconsin Alumni Research Foundation Radiation therapy system
WO1994028971A3 (en) * 1993-06-09 1995-05-04 Wisconsin Alumni Res Found Radiation therapy system

Also Published As

Publication number Publication date
DE2613620A1 (en) 1977-10-13

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Legal Events

Date Code Title Description
ST Notification of lapse