Pneumatic Transfer Tube (Rabbit)

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Pneumatic Transfer

Description

The Rabbit facility is a pneumatic transfer system that allows samples to be rapidly injected into the periphery of the reactor core (grid position G2). The sample lands on a shock absorber inside of the terminus assembly at the peak axial flux position.  The advantage that this facility provides is the ability to examine short-lived isotopes. A newly-installed control system allows fine-tuned sample injection times with accuracy on the order of a tenth of a second. The digital counter starts when the sample passes by an optical sensor near the top of the reactor tank. After the sample has been irradiated for the programmed amount of time, the sample is then returned to the injection point. The ability to rapidly irradiate and examine samples is ideal for short-lived isotope studies.

Sample Size/Encapsulation

Sample Size Limitations

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Rabbit tubes on a wooden table next to a ruler to demonstrate scale.

Short Polyethylene Pneumatic Transfer Tube: Inside Dimensions

Diameter 0.75 inches 
Length 1.80 inches 

OR

Diameter: 0.60 inches
Length: 2.15 inches 


Long Polyethylene Pneumatic Transfer Tube: Inside Dimensions

Diameter: 0.60 inches
Length: 4.40 inches

Encapsulation Limitations

Cadmium Covers Physical Form of Material Integrated Power (kWh) Minimum Containment
Primary Secondary
Without Standard Cadmium Covers Stable Solid < 1000 ≤ 2 dram polyethylene vial Not required
Liquid, Powder or Other Loose Solid Material ≤ 1000 ≤ 2/5 dram polyethylene vial ≤ 2 dram polyethylene vial
With Cadmium Covers Stable Solid ≤ 100 ≤ 2/5 dram polyethylene vial, or aluminum foil wrap inside cadmium cover inside ≤2 dram polyethylene vial Not required
Liquid, Powder or Other Loose Solid Material ≤ 100 ≤ 2/5 dram polyethylene vial ≤ 2 dram polyethylene vial