A low-energy beta-particle imaging system for measuring tritium distributions
A low-energy beta-particle imaging system was constructed for rapid measurement of the distributions of low-energy beta-emitting nuclides, especially tritium. The imaging system consists of a scintillator screen, two tapered fibers, an image intensifier, and a Polaroid film for image recording. The...
Saved in:
| Published in | Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 253; no. 1; pp. 119 - 127 |
|---|---|
| Main Authors | , |
| Format | Journal Article |
| Language | English |
| Published |
Elsevier B.V
15.12.1986
|
| Online Access | Get full text |
Cover
Loading…
| Summary: | A low-energy beta-particle imaging system was constructed for rapid measurement of the distributions of low-energy beta-emitting nuclides, especially tritium. The imaging system consists of a scintillator screen, two tapered fibers, an image intensifier, and a Polaroid film for image recording. The distortion of the observed image is less than 2.5% and the spatial resolution is more than 5 line pairs (lp)/mm. ZnS(Ag) screens with thicknesses of 5–7 mg/cm
2 have the highest scintillation light yield for low-energy beta-particles. The detectable flux densities for
14C and
3H were 7.3 and 80 s
−1 cm
−2, respectively. |
|---|---|
| ISSN: | 0168-9002 1872-9576 |
| DOI: | 10.1016/0168-9002(86)91135-6 |