A spectrometer for study of neutron activation of beryllium-7 as a function of energy
Boyer, Walton T.
MetadataShow full item record
A neutron diffraction crystal spectrometer with a resolution of 13 microseconds per meter and monochromatic beam intensity up to 4 , 2 10 n/cm -sec in the range 0. 012-0. 400 ev has been constructed for 7 study of the activation cross section of Be as a function of energy in the thermal region. First preliminary results using ZnS(Ag) as a detector 7 7 suggest the possibility of a resonance for the Be (n, p)Li reaction in the region of 0. 025-0. 050 ev.
Showing items related by title, author, creator and subject.
Bang, H.; Agrawal, B.N. (1995);In this paper, a closed-loop switching function for on-off thruster firings is proposed to provide good attitude control performance in the presence of modeling errors for single-axis slew maneuver of a rigid spacecraft ...
Bang, H.; Agrawal, B.N. (1993);A closed loop switching function for single-axis slew maneuvers of spacecraft using on-off thrusters is investigated by analytical simulations and experimental demonstrations. The proposed switching function provides ...
Mack, Thomas J. (Monterey California. Naval Postgraduate School, 2007-03);Certain methods of realizing numeric functions, such as sin(x) or x , in hardware involve a Taylor Series expansion or the CORDIC algorithm. These methods, while precise, are iterative and slow and may take on the order ...