Advanced design, alignment and calibration of an apparatus to measure the effective cross-section of molecular nitrogen when boMaster in Business Administrationrded by low energy electrons.
Fontana, James David
Milne, Edmund A.
MetadataShow full item record
The design and construction of a previously incomplete apparatus was advanced in preparation for measuring the effective cross-sections for forming the B²Σᵤ+ state of N₂+ and the C³πᵤ state of N₂ in the lowest vibrational level when excited by low energy electrons in the 50 to 2,000 ev range. The equipment's electron beam and optical system were aligned and its combined optical, detection and counting system was calibrated to obtain its efficiency in counting photons emitted from the C³πᵤ state decay. This efficiency was found to be 0.01006 ±0.00005%. The efficiency of the combined detection and counting system alone was found to be 0.617 ±0.031%.
RightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Showing items related by title, author, creator and subject.
Ryzhikov, V.; Grinyov, B.; Piven, L.; Onyshchenko, G.; Sidletskiy, O.; Naydenov, S.; Pochet, T.; Smith, C. (IEEE, 2015-07-01);It is known that solid-state scintillators can be used for detection of both gamma radiation and neutron flux. In the past, neutron detection efficiencies of such solid-state scintillators did not exceed 5-7%. At the same ...
Dare, James Ashton; Rowen, William Howard (Cambridge, Massachusetts; Massachusetts Institute of Technology, 1947-09);Starting with general drawings and information furnished by Dr. James S. Allen, the detailed drawings, assembly procedures and processing techniques were developed by the investigation reported in this paper. Three tubes ...
Little, Donald Cubbison (Monterey, California. U.S. Naval Postgraduate School, 1966-05);Coincidence counting techniques were used in the determination of the half-life of Hf-178m. The experimental sample, essentially a mixture of Hf-177 and Hf-178, was irradiated with thermal neutrons to produce Hf-178m ...