[Neutron therapy in the GDR. IX. About the accuracy of neutron dosimeter systems (author's transl)]. 1979

K Regel, and H Abel

In this report is specified which accuracies must now be achieved in the determination of dose components for neutron therapy of tumors and for evaluation of RBE's after neutron irradiations of various organs from mammals or men. After these introductory remarks the reasons are summarized why the errors in ionimetric measurements of neutron doses are considerably higher than those of gamma-doses. In detail the concept and the errors of the Rossendorf neutron dosimeter system are represented. The latter consists of two spherical homogeneous ionization chambers, each of which is connected to a commercial dosimeter. The results of an intercomparison between our neutron dosimeter and that of DR. Bewley (MRC Cyclotron Unit, Hammersmith Hospital London) carried out at the Rossendorf neutron therapy facility are reported.

UI MeSH Term Description Entries
D009369 Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D009502 Neutrons Electrically neutral elementary particles found in all atomic nuclei except light hydrogen; the mass is equal to that of the proton and electron combined and they are unstable when isolated from the nucleus, undergoing beta decay. Slow, thermal, epithermal, and fast neutrons refer to the energy levels with which the neutrons are ejected from heavier nuclei during their decay. Neutron
D011878 Radiotherapy The use of IONIZING RADIATION to treat malignant NEOPLASMS and some benign conditions. Radiotherapy, Targeted,Targeted Radiotherapy,Radiation Therapy,Radiation Therapy, Targeted,Radiation Treatment,Targeted Radiation Therapy,Radiation Therapies,Radiation Therapies, Targeted,Radiation Treatments,Radiotherapies,Radiotherapies, Targeted,Targeted Radiation Therapies,Targeted Radiotherapies,Therapies, Radiation,Therapies, Targeted Radiation,Therapy, Radiation,Therapy, Targeted Radiation,Treatment, Radiation
D011879 Radiotherapy Dosage The total amount of radiation absorbed by tissues as a result of radiotherapy. Dosage, Radiotherapy,Dosages, Radiotherapy,Radiotherapy Dosages
D004307 Dose-Response Relationship, Radiation The relationship between the dose of administered radiation and the response of the organism or tissue to the radiation. Dose Response Relationship, Radiation,Dose-Response Relationships, Radiation,Radiation Dose-Response Relationship,Radiation Dose-Response Relationships,Relationship, Radiation Dose-Response,Relationships, Radiation Dose-Response
D005214 Fast Neutrons Neutrons, the energy of which exceeds some arbitrary level, usually around one million electron volts. Fast Neutron,Neutron, Fast,Neutrons, Fast
D005859 Germany, East The former German Democratic Republic which was reunified with the former Federal Republic of Germany in 1990. Democratic Republic of Germany,German Democratic Republic,Germany, Democratic Republic of
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

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