A Multiwire Proportional Chamber for Imaging Thermal, Epicadmium, and Fast Neutrons
- 1 February 1974
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Nuclear Science
- Vol. 21 (1), 178-183
- https://doi.org/10.1109/tns.1974.4327459
Abstract
The 25 cm × 25 cm chamber described images thermal and epicadmium neutron beams using two boron-coated conversion screens, and fast neutrons using a single polyethylene converter. Sample images and quantitative attenuation and resolution data are presented. Measurements of neutron attenuation in lucite patterns give good agreement with expected values for thermal, epicadmium, and fast (Pu-Be) beams. The measured mean free paths were 0.30, 0.81, and 5.8 cm, respectively. Thermal neutron resolution (0.2 cm) depends upon α-particle range, but resolution for fast neutrons (0.4 cm) appears to be limited by chamber thickness (to approximately one-half of the chamber thickness). Measurements involving digital image storage and manipulation are also described and illustrated.Keywords
This publication has 7 references indexed in Scilit:
- Multiwire proportional chambers for biomedical applicationNuclear Instruments and Methods, 1973
- Phase compensated electromagnetic delay lines for wire chamber readoutNuclear Instruments and Methods, 1972
- The Adaptation of Multi-Wire Proportional Chambers with Delay-Line Readouts for Neutron Radiographic ImagingIEEE Transactions on Nuclear Science, 1972
- MULTI-WIRE PROPORTIONAL CHAMBERS FOR LOW DOSE X-RADIOGRAPHYAmerican Journal of Roentgenology, 1971
- Delay-line readout for proportional chambersNuclear Instruments and Methods, 1970
- Measurement of the Modulation Transfer Function of Radiographic Systems Containing Fluorescent ScreensPhysics in Medicine & Biology, 1964
- The Design of Neutron Counters Using Multiple Detecting LayersReview of Scientific Instruments, 1950