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| Keywords: INEEL 58-1360 HAER ID-33-D-64 195650pu.jpg en ARA-II Army Reactors Area 2 Interior view of SL-1 reactor building with reactor head in place in center foreground March 21 1958 INEEL photo no 58-1360 Photographer Jack L Anderson - Idaho National Engineering Laboratory Army Reactors Experimental Area Scoville Butte County ID Reproduction Number HAER ID-33-D-64 1958-03-21 http //www loc gov/pictures/item/id0410 photos 195650p/ Jack L Anderson - Idaho National Engineering Laboratory Army Reactors Experimental Area Scoville Butte County ID other versions 43 518233 -112 8237 Original 4x5 print with Library of Congress Prints and Photographs Division Washington D C 20540 USA http //hdl loc gov/loc pnp/pp print PD-USGov Uploaded with UploadWizard SL-1 Reactor Idaho National Laboratory ImageNote 1 2118 2747 42 42 4063 3158 2 Operating floor Note that none of the shield blocks are shown but they would sit atop the reactor during operation and be removed for maintenance ImageNoteEnd 1 ImageNote 2 2039 2051 42 42 4063 3158 2 Central Control Rod Rod Number 9 would be inserted here and is the most reactive in the core This rod had no reported sticking for the 6 months prior to the accident No control Rod Drive Motors are shown in this picture because the plant is still under construction ImageNoteEnd 2 ImageNote 3 1939 638 42 42 4063 3158 2 Emergency exit door opens outward This exit leads to uncovered exterior stairs When the first casualty was placed on a stretcher one of the rescuers had a clogged Scott Air-Pak The two men attempted to leave the building through this door but the location of the electrical generator prevented them They returned down the main stairs with the body ImageNoteEnd 3 ImageNote 4 1544 1481 42 42 4063 3158 2 Ladder down to a fuel storage well There were 3 fuel storage wells near the main entrance However there are two mentions of a low level room in IDO-19300 where expended fuel and reactor components were likely stored for shielding purposes ImageNoteEnd 4 ImageNote 5 2071 2183 42 42 4063 3158 2 Rod Number 1 an active control rod cruciform It would stick during some operations so it was operationally limited to 18 inches until a burr on the shroud was removed in November 1960 ImageNoteEnd 5 ImageNote 6 2398 2140 42 42 4063 3158 2 Rod Number 8 a Tee shaped rod There was no rod in the core so a plate was bolted down as shown here Instrumentation wires for thermocouples penetrated the plate During the accident this cover plate blew off and the threads of the holddown studs were stripped ImageNoteEnd 6 ImageNote 7 1750 2146 42 42 4063 3158 2 Rod Number 2 was inactive but it had cadmium poison shims in it to compensate for some disintegrated aluminum-boron strips ImageNoteEnd 7 ImageNote 8 2298 1935 42 42 4063 3158 2 Rod Number 6 was inactive but it had cadmium poison shims in it to compensate for some disintegrated aluminum-boron strips During the accident this port was bolted closed as in the picture ImageNoteEnd 8 ImageNote 9 2350 2067 42 42 4063 3158 2 Rod Number 7 an active control rod cruciform It was the rod which was most prone to sticking in the months preceding the accident Its shield plug impaled an operator to the ceiling above but the control rod blade remained in the core ImageNoteEnd 9 ImageNote 10 1781 2067 42 42 4063 3158 2 Rod Number 3 an active control rod cruciform ImageNoteEnd 10 ImageNote 11 2029 1967 42 42 4063 3158 2 Rod Number 5 an active control rod cruciform During the time of the accident this rod had its drive mechanism attached ImageNoteEnd 11 ImageNote 12 1755 1956 42 42 4063 3158 2 Rod Number 4 a dummy control rod Tee-shaped Since this was inserted through the port without removing the head the all-aluminum rod was reduced in size to fit ImageNoteEnd 12 ImageNote 13 1296 749 42 42 4063 3158 2 Boron storage tank ImageNoteEnd 13 ImageNote 14 2419 422 42 42 4063 3158 2 The walls are rough because of the sprayed insulation ImageNoteEnd 14 | ||||
