Picker Nuclear

Interplanar Spacings. Diffractometer alignment procedures require the use of a well-prepared polycrystalline specimen. Two standard samples found to be suitable are silicon and a-quartz (including Novaculite). The 26 values of several of the most intense reflections for these materials are listed in Table 7.6 (Tables of Interplanar Spacings d vs. Diffraction Angle 26 for Selected Targets, Picker Nuclear, White Plains, N.Y., 1966). To convert to d for Ka or to d for Ka2, multiply the tabulated d value (Table 7.6) for Ka by the factor given below ... 

Figure 3-2. Interaction of /3 particles with aromatic solvents and subsequent fiuor excitation. e represents the emitted /3 particles, O indicates a solvent molecule in its ground state, and denotes solvent molecules in the triplet state. (From E. Rapkin, Preparation of Samples for Liquid Scintillation Counting, Picker Nuclear Corp., White...

Several companies producing scintillation counting equipment, e.g., Nuclear Chicago, Intertechnique, Packard, Picker Nuclear and Beckman, offer flow cell conversion kits. Unfortunately, these cells and also those described in the literature discussed in the review papers mentioned above, have cell volumes from 0.5 to 4 ml, which makes them unsuitable for use in combination with high-performance liquid chromatographic columns. 

Vicente, Kim X 1995. A Field Study of Operator Cognitive Monitoring at Pickering Nuclear Generating Station. Technical Report CEL 9504, Cognitive Engineering Laboratory. University of Toronto. 

E. Rapkin, Picker Nuclear Scintillator, 11 No. 1 L. Picker Nuclear, White Plains. New York, 1966... 

In addition to Federal Government (U. S. Atomic Energy Commission, U. S. Army, Bureau of Mines, Bureau of Standards, etc.) requirements, several companies, including the American Novawood Corp., American Nuclear Corp., Gamma Process Co., General Electric Co., Lockheed Aircraft Corp., Nuclear Materials and Equipment Corp., Picker X-Ray Corp., and U. S. Nuclear Corp., and the Japanese and Canadian governments have... 

Bill recognized immediately the importance of the invention of the scintillation camera, and persuaded Professor Charles Doan, head of the Department of Internal Medicine at Ohio State, to place an order for the first commercial version. This camera was to be built by a new company. Nuclear Chicago, under the leadership of John Kuranz, President. The company was founded in 1947 by John Kuranz and others from the nuclear reactor laboratory of Em-ico Fermi at the University of Chicago. By the early 1970s, Ohio-Nudear of Solon, Ohio, as well as Picker Medical and General Electric, were also providing gamma cameras to hospitals. 

At Searle, R. Jaszczak developed the first single photon emission tomographic (SPECT) camera in 1976. The total gamma camera market was 50 million in 1973 (in 1973 dollars), compared with 1 billion in 2005. By 1973, the major vendors of nuclear imaging equipment were Searle, General Electric (GE), Picker, and Ohio-Nuclear. 

The reactor fission product and fissionable nuclear material isotopic production and decay were simulated using the SAS2H/ORIGEN-S sequence of SCALE. It was necessary to calculate these inventories to determine the impact on the core neutron multiplication constant, keff. It was determined that after 381 days of the proposed reactor operation at 7.2MW (2740 MWd) with its 2.88 MTU core (951 MWd/MTU), the quantities of fission products and fissionable nuclear materials that are produced in the proposed reactor have negligible effect ( 1% in keff) on the core reactivity. Additionally, there is sufficient excess reactivity (i.e., 6% keff) to compensate for the xenon that is produced. The quantity of fission products and fissionable nuclear materials (e.g., 1.98 kg Pu) produced in the proposed reactor are equivalent to those produced in a CANDU reactor (i.e., Pickering-7) after about 1.8 days of operation at 15 MW. 

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