Abstract
Construction and filling procedures are described for neutron proportional counters filled to 101-cm Hg of enriched BF3+20-cm Hg of A. Examples are given of the plateau and bias curves obtained for different values of the gas multiplication. Characteristics taken at different times after filling are practically identical, which indicates that no deterioration occurs. The effect of the electron affinity of the BF3 is discussed, and it is shown how the counter parameters affect the survival probability of the electrons, hence the quality of the pulse size distribution. It has been verified experimentally that negative ions produced by electron attachment are present in the counter gas.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
