Comparison Of MCNP And Practice Experiment On Raw Cement Analysis

Keeping crude material component reasonable and stable is the main essential link during the cement production, which has the vital significance to produce the high quality cement. At present, there are two meaning adopted: the conventional chemical analysis to each sample, the neutron-gamma analysis to each sample. The paper introduces the new information that the nation and our country research and develop the prompt neutron gamma analysis (PGNAA). On the basis of the neutron activation knowledge, the paper simply introduces the different particulars in the reaction of the neutron and element, and the design in the cement crude material multi-elements content detector set. To reduce the experiment numbers and improve the experiment efficiency, we use MCNP program to design the device, calculate the experiment result of the 4 kinds of main elements in common cement and find out the obviousγpeaks, which each kind element emits, and consider the disturbing. The device construction, anti-neutron material and detector are determined by MCNP simulation and the experiment. In the end, the each single component and crude cement all are measured by the device, then gamma-beta spectrum is compared to MCNP simulation spectrum.This importance is to design the cement-detected device using D-D neutron generator on the base of MCNP program, and the experiment spectrum of the crude cement material is compared to MCNP simulation spectrum to find out each element obviousγ-peaks energy value, then we use the peak to calculate the content value of each kind of oxide compound, which is compared to chemical test value. The result error is in the national standard. These will take the device to the market fast.