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Shielding Analysis of the 5320 Shipping Cask
Get PDFThe purpose of this work is to demonstrate that the 5320 shipping cask meets Federal regulations for maximum radiation dose rates when loaded with the intended plutonium oxide cargo. It should be emphasized that the 5320 is an existing cask, and therefore this work represents confirmatory analysis rather than design analysis
Baltimore & Ohio (B&O) 5320
No full textA photograph print showing the Baltimore & Ohio (B&O) 5320. 4-6-2, "President Cleveland", on passenger train. Has the new Coprotti Poppet valve gear
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Hypothetical accident conditions thermal analysis of the 5320 package
No full textAn axisymmetric model of the 5320 package was created to perform hypothetical accident conditions (HAC) thermal calculations. The analyses assume the 5320 package contains 359 grams of plutonium-238 (203 Watts) in the form of an oxide powder at a minimum density of 2.4 g/cc or at a maximum density of 11.2 g/cc. The solution from a non-solar 100 F ambient steady-state analysis was used as the initial conditions for the fire transient. A 30 minute 1,475 F fire transient followed by cooling via natural convection and thermal radiation to a 100 F non-solar environment was analyzed to determine peak component temperatures and vessel pressures. The 5320 package was considered to be horizontally suspended within the fire during the entire transient
Block Card 5320 Keefer Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: 5320 Keefer Drive (Toledo, Ohio) | Rancamp Place Addition (Toledo, Ohio) | South Toledo Area (Toledo, Ohio) | Garage
Block Card 5320 Suder Avenue
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: dwelling | 5320 Suder Avenue (Toledo, Ohio) | Ranch houses | Greenwich Village (Toledo, Ohio) | Point Place (Toledo, Ohio) | North Toledo (Toledo, Ohio
Baltimore & Ohio (B&O) 5320
No full textA photograph print showing the Baltimore & Ohio (B&O) 5320. 4-6-2, "President Cleveland", which had the Coprotti Poppet valve gear. "Built in 1929 [possible builder's photo] had so much trouble with the gear that they had to take offand put old style"
Block Card 5320 W. Melvin Drive
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: 5320 West Melvin Drive (Toledo, Ohio) | Rancamp Place Addition (Toledo, Ohio) | South Toledo Area (Toledo, Ohio) | Ranch houses | Dwellin
Multi-Wavelength Observations Of A New Redback Millisecond Pulsar 4FGL J1910.7-5320
Get PDFWe present the study of multi-wavelength observations of an unidentified
Fermi Large Area Telescope (LAT) source, 4FGL J1910.7-5320, a new candidate
redback millisecond pulsar binary. In the 4FGL 95% error region of 4FGL
J1910.7-5320, we find a possible binary with a 8.36-hr orbital period from the
Catalina Real-Time Transient Survey (CRTS), confirmed by optical spectroscopy
using the SOAR telescope. This optical source was recently independently
discovered as a redback pulsar by the TRAPUM project, confirming our
prediction. We fit the optical spectral energy distributions of 4FGL
J1910.7-5320 with a blackbody model, inferring a maximum distance of 4.1 kpc by
assuming that the companion fills its Roche-lobe with a radius of R = 0.7R_sun.
Using a 12.6 ks Chandra X-ray observation, we identified an X-ray counterpart
for 4FGL J1910.7-5320, with a spectrum that can be described by an absorbed
power-law with a photon index of 1.0+/-0.4. The spectrally hard X-ray emission
shows tentative evidence for orbital variability. Using more than 12 years of
Fermi-LAT data, we refined the position of the {\gamma}-ray source, and the
optical candidate still lies within the 68% positional error circle. In
addition to 4FGL J1910.7-5320, we find a variable optical source with a
periodic signal of 4.28-hr inside the 4FGL catalog 95% error region of another
unidentified Fermi source, 4FGL J2029.5-4237. However, the {\gamma}-ray source
does not have a significant X-ray counterpart in a 11.7 ks Chandra observation,
with a 3-{\sigma} flux upper limit of 2.4*10^-14 erg cm^-2 s^-1 (0.3-7 keV).
Moreover, the optical source is outside our updated Fermi-LAT 95% error circle.
These observational facts all suggest that this new redback millisecond pulsar
powers the {\gamma}-ray source 4FGL J1910.7-5320 while 4FGL J2029.5-4237 is
unlikely the {\gamma}-ray counterpart to the 4.28-hr variable.Comment: Accepted for publication in Ap
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