Title :
A Pressurized Multiwire Proportional Chamber for Neutron Imaging
Author :
Director, Bruce ; Kaplan, Selig ; Perez-Mendez, Victor
Author_Institution :
Department of Nuclear Engineering University of California, Berkeley and Lawrence Berkeley Laboratory
Abstract :
A pressurizable neutron-sensitive multi-wire proportional chamber has been constructed to test the effect of increased gas density on image resolution. The chamber has dimensions of 25 cm × 25 cm and is pressurizable to 4 atm. With a single-plate converter the thermal-neutron detection efficiency was 6.3% for gadolinium and 2.3% for boron-10. For a four-fold increase in chamber pressure the overall resolution improved more than a factor of two for boron, but relatively little for gadolinium. The effects of cathode biasing is also discussed.
Keywords :
Aluminum; Boron; Cathodes; Image resolution; Laboratories; Neutrons; Radiology; Spatial resolution; Testing; Voltage;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.1978.4329371
