Dynematics Photo Gallery

Guy Wilson developed some of the procedures and safety basis documents for using this trapping system to capture fluorine, chlorine trifluoride, and uranium hexafluoride gas in several facilities and for transport containers. Originally it was intended only for reducing pressure in UF6 cylinders to comply with transportation regulations and standards, but ultimately it was also deployed on D&D projects involving buildings with fluorine and fluoride residues in piping and vessels.

Here you see Guy holding the “pigtail” used to connect the evacuation system to a cylinder.

Empty cylinders that have been verified by borescope to contain no UF6 deposits ready to ship to a disposal site using a load plan prepared by Guy Wilson.

A new overpack loaded with a test cylinder being prepared for a full scale Type B fire test at Southwest Research Institute. The new overpack was the basis for several DOT Special Permits with applications prepared by Guy Wilson.

Thermocouples inside the cylinder will show the temperature does not exceed the UF6 “triple point” of 147 F, where rapid expansion begins.

An old publicly released photo of an eight inch cylinder filled with actual UF6 rupturing in a diesel pool fire. No large diameter UF6 cylinder was ever ruptured in a test in the US.

Thermostructural finite element analysis by Bechtel's Advanced Simulations and Analysis Group indicated that warping would be acceptable in the CI-48 Overpack at the high pool fire temperatures.

Likewise the insulative capacity of the CI-48 appeared to be sufficient. This was confirmed independently by Bechtel and by Montgomery Engineering.

Here is the massive base of the CI-48, designed to allow drive-on by heavy equipment.

The thermocoupled CI-48 housing the thermocoupled 48” cylinder is unloaded for full scale fire testing.

The data transmission is protected by an insulated duct.

Testing was on a game ranch near Hondo, TX. Here are some local observers.

Southwest Research Institute workers filling the diesel pool.

The pool is ready to ignite.

It was impossible to approach the full scale pool fire closer than about 100 ft.

The CI-48 during fabrication at Pierce Metals in Johnson City, TN.

Bolt sheared during transport.

Test surrogate fabricated by Guy Wilson and used to demonstrate equipment for loading the “ETTP Containment Vessel,” (ECV) and ASME code vessel used to house small noncompliant UF6 cylinders inside the UX-30 Overpack using an ASME vessel comparable to the 30B cylinder. Duratek, now part of Energy Solutions, designed the loading equipment and the ECV.

Pressure test of a loaded ECV.

Bechtel Jacobs workers loading a UX-30 Overpack on a trailer for shipment.

Does radiation make your hair fall out? Sure, sometimes, but in this case its hereditary. Guy Wilson 2007