摘要:

AbstractThe thermal neutron flux kernel for a point fission source in a hydrogenous medium is obtained analytically by representing the epithermal slowing down source in a convenient functional form. Normalization is achieved by invoking an appropriate conservation condition. The temperature dependence is then assessed from experimentally determined variation in the diffusion length and appropriate variation in the fitting parameters for the slowing down source. It is concluded that the kernel for water is rather insensitive to change in the diffusion length, and in fact, ther2-flux varies to a good approximation asf(ρr),ρbeing the temperature-dependent specific gravity.

ISSN:0029-5639    

DOI:10.13182/NSE60-A25746

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

摘要:

AbstractA theoretical treatment is given of the statistical fluctuations in neutron population which occur in nuclear reactors. The absolute magnitude and frequency dependence of the spectral density of these fluctuations is obtained. The model used assumes that the fluctuations arise from a“noise-equivalent source”whose strength can be easily calculated from fundamental considerations. Calculations are also presented of the fundamental statistical errors in criticality measurements.

ISSN:0029-5639    

DOI:10.13182/NSE60-4

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0029-5639    

DOI:10.13182/NSE60-A25748

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0029-5639    

DOI:10.13182/NSE60-A25749

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0029-5639    

DOI:10.13182/NSE60-A25750

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor

ISSN:0029-5639    

DOI:10.13182/NSE60-A25752

出版商:Taylor&Francis    

年代:1960

数据来源: Taylor