Title:
【発明の名称】癌治療用中性子放射設備
Document Type and Number:
Japanese Patent JP2002524219
Kind Code:
A
Abstract:
A neutron radiation installation for treatment of different types of cancer tumours, comprising a source of neutrons (11), like a nuclear reactor or an accelerator dependent source of radiation, a conventional filter (14) for reducing the radiation energy to a suitable level for radiation treatment of cancer tumours, having low energetic neutron beams of an energy of between 1 eV and 40 keV, or preferably between 1 keV and 20 keV, and a radiation tube (22) out of which radiation beams are emitted towards a patient (10) having a cancer tumour (23), whereby an optimum radiation is obtained at a distance of between 50 and 100 cm from the output surface of the conventional filter (14), and in which the installation comprises an additional radiation filter (21) mounted between the conventional filter (14) and the output of the radiation tube, which additional filter is of a material which filters off neutrons in the epithermic spectrum from low energetic neutron beams up to an energy of about 1 keV, in particular metallic lithium, or another form of the element lithium, which has been enriched to about 95% in the isotope Li<6>.
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Inventors:
Skeld, Kurt
Application Number:
JP2000569882A
Publication Date:
August 06, 2002
Filing Date:
September 08, 1999
Export Citation:
Assignee:
Radicon Arb
International Classes:
A61N5/10; G21K5/02; G21K3/00; (IPC1-7): A61N5/10; G21K3/00; G21K5/02
Attorney, Agent or Firm:
Noriyuki Morita (1 person outside)