Transfer coffin

4 Transfer coffin. The thicknesses of lead walls required for a transfer coffin containing four irradiated fuel assemblies are computed to be 10.5 in. for the sides and 10 in. for the top and bottom.The exposure from assemblies that have remained in the canal 15 days is. then 0.04 r per 8 hr at the surface of the coffin. 

The inside dimensions of the coffin are 12 in. square and 30 in. high. The inside is divided into four sections by steel plates covered with 0-002 in. of cadmium. The outside dimensions of the coffin, including the coyer, are 32 in. square and 50 in. high. The corners, of the coffin are rounded to the required.shield thickness in order to reduce its weight. 

---

Since the stoichiometric coefficient in the transfer number B, both for the overall case of CO ignition and for the establishment of a gaseous flame in which CO2 is created (as depicted in the Coffin and Brokaw model), is related to the ambient mass fraction of oxygen, the reaction... 

Persiani, P. J., Shielding of Plugs During Transfer into Coffins, ANL EKF 9, October 13, 1949. 

Operating Crew. The operating crew will consist of one chief operator, one instrument man, two operators and two oilers per shift, when the pile is in operation. The pile unloading crew will probably consist of one unloading foreman, 2 pusher operators, 2 elevator coffin operators, three transfer car operators, with several helpers. 

The rail-mounted fuel-unloading machine then traveled to the interbuilding transfer station, where it lowered the subassembly into a second interbuilding coffin, also cooled by argon. This coffin subsequently traveled to the fuel cycle facility. During all fuel-handling operations, the maximum fuel pin temperature was maintained below 650°C (1200°F). 

Schneider, Y., Azoulay, J.D., Coffin, R.C., and Bazan, G.C. (2008) New polyethylene macroinitiatms and then-subsequent grafting by atom transfer radical polymerization. Journal of the American Chemical Society, 130,10464-10465. 

---