| Автор | T R Overton |
| Автор | P R J Burch |
| Дата выпуска | 1966-01-01 |
| dc.description | The construction and performance of a coincidence/anticoincidence low-level gamma-ray spectrometer is described. The radioactive source (in a sealed, cylindrical, stainless steel container) fits into the well of a large plastic scintillator; a NaI(Tl) crystal (6 in. diameter × 4 in.) rests on top of the source inside the well. Electrical pulses from the photomultiplier of the crystal unit are routed via a coincidence/anticoincidence circuit to a multi-channel analyser. Only those pulses are analysed that are in coincidence/anticoincidence with selected pulses from the plastic scintillator. The flexibility of the system permits optimum discrimination in favour of, or against, particular radionuclides. In measurements of natural radioactivity, potassium and the uranium and thorium series can be separately assayed even at very low levels. Background, calibration and sensitivity data are given, together with the results of measurements of soil samples and cremated human remains. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | A Coincident Gamma-Ray Spectrometer and its application to measurements of Low Level Radioactivity |
| Тип | paper |
| DOI | 10.1088/0031-9155/11/1/304 |
| Electronic ISSN | 1361-6560 |
| Print ISSN | 0031-9155 |
| Журнал | Physics in Medicine and Biology |
| Том | 11 |
| Первая страница | 47 |
| Последняя страница | 61 |
| Аффилиация | T R Overton; Medical Research Council Environmental Radiation Research Unit, Department of Medical Physics, The University of Leeds, Leeds, 1 |
| Аффилиация | P R J Burch; Medical Research Council Environmental Radiation Research Unit, Department of Medical Physics, The University of Leeds, Leeds, 1 |
| Выпуск | 1 |
