GB1248965A - A method and apparatus for measuring the energy and/or dose of radiation by radiation-sensitive transparent solid body measuring elements - Google Patents
A method and apparatus for measuring the energy and/or dose of radiation by radiation-sensitive transparent solid body measuring elementsInfo
- Publication number
- GB1248965A GB1248965A GB5595068A GB5595068A GB1248965A GB 1248965 A GB1248965 A GB 1248965A GB 5595068 A GB5595068 A GB 5595068A GB 5595068 A GB5595068 A GB 5595068A GB 1248965 A GB1248965 A GB 1248965A
- Authority
- GB
- United Kingdom
- Prior art keywords
- radiation
- energy
- fluorescence
- dose
- original
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
- G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
- G01T1/02—Dosimeters
- G01T1/10—Luminescent dosimeters
Abstract
1,248,965. Lumiescent materials and uses thereof. GES. FUER KERNFORSCHUNG m.b.H. 26 Nov., 1968 [28 Nov., 1967], No. 55950/68. Heading C4S. [Also in Division G1] During readout of a dosimeter element, the intensity of fluorescence from a number of zones, which are located at different distances from the surface of the element which was subjected to the original irradiation, is measured so that information as to the energy of the original radiation can be determined before the actual dose is calculated. This because for certain radiation fields (particularly in low energy medical and technical applications) the dose absorbed by the element is energy dependent. With a cube-shaped element 1, Fig. 1, the surface which was irradiated is known, and the element is displaced at right angles to this surface (in the X direction). A masking arrangement 4 allows excitation of the element, which may be a low Z phosphate glass, by ultra-violet radiation, in the Y direction, and detection of fluorescence emitted in the Z direction by a narrow zone of the element. The detector may be a photomultiplier. The displacement may be step-by-step or continuously, in the latter case the detector being coupled to a chart recorder. In an alternative arrangement, a light conductor is moved across the fluorescent surface. In the case of a cylindrical block element, the direction of incidence of the original radiation is first detected by locating the part of the surface producing maximum fluorescence. Once this is found, fluorescence in zones spaced further and further from the originally irradiated part of the surface may be measured. A graph of intensity of fluorescence against distance (or depth) of a luminescent zone from the originally irradiated surface may then be drawn and compared with calibration curves for different energies of the original radiation, Fig. 4 (not shown), which curves have differing shapes (steeper with decreasing energies), to determine the energy and dose of the original radiation that the element was subjected to. Values for tissue equivalent doses may also be calculated therefrom. Reference is made to γ- and X-radiation and also # radiation.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED0051758 | 1967-11-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1248965A true GB1248965A (en) | 1971-10-06 |
Family
ID=7053635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5595068A Expired GB1248965A (en) | 1967-11-28 | 1968-11-26 | A method and apparatus for measuring the energy and/or dose of radiation by radiation-sensitive transparent solid body measuring elements |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1248965A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458058A1 (en) * | 1979-06-02 | 1980-12-26 | Kernforschungsz Karlsruhe | EVALUATION APPARATUS FOR PHOSPHATIC GLASS DOSIMETER |
EP2413161A3 (en) * | 2008-10-24 | 2014-09-24 | Landauer, Inc. | Method of luminescent solid state dosimetry of mixed radiations |
-
1968
- 1968-11-26 GB GB5595068A patent/GB1248965A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458058A1 (en) * | 1979-06-02 | 1980-12-26 | Kernforschungsz Karlsruhe | EVALUATION APPARATUS FOR PHOSPHATIC GLASS DOSIMETER |
EP2413161A3 (en) * | 2008-10-24 | 2014-09-24 | Landauer, Inc. | Method of luminescent solid state dosimetry of mixed radiations |
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