Sample size limitations | |
---|---|
Content must fit in standard 2/5 dram polyethylene tube |
Encapsulation Limitations |
||||
Cadmium Covers |
Physical Form of Material |
Integrated Power |
Minimum Containment |
|
Primary |
Secondary |
|||
Without Standard Cadmium Covers |
Stable Solid |
< 25 |
Polyethylene Vial |
Not required |
25-35 |
Flame-sealed quartz or sealed container |
Not required |
||
> 35 |
Flame-sealed quartz or sealed container |
Not required but carrier to be an aluminum TRIGA tube |
||
Liquid, Powder or Other Loose Solid Material |
< 25 |
≤2 dram polyethylene vial |
≤4 dram polyethylene vial |
|
> 25 |
Flame-sealed quartz or welded aluminum container |
Approved sealant on an aluminum TRIGA tube |
||
With Standard Cadmium Covers(2) |
Stable Solid |
≤1 |
≤2/5 dram polyethylene vial, or aluminum foil wrap inside cadmium cover inside ≤4 dram polyethylene vial |
Not required |
≤35 |
Flame-sealed quartz or sealed aluminum container |
Vented 4 dram polyethylene vial to hold cadmium covers with maximum use of 21 Mwh |
||
Aluminum foil wrap inside cadmium cover inside sealed aluminum container |
Not required |
|||
Liquid, Powder or Other Loose Solid Material(3) |
≤1 |
≤2/5 dram polyethylene vial inside Cd container |
4 dram polyethylene vial outside the Cd cover |
Footnote:
(1) The standard carrier for all LS irradiations shall be the poly TRIGA Tube.
(2) The standard cadmium cover referenced in Table 18.1 consists of a small cadmium box and cover which is capable of holding a conventional 2/5 dram or 2/27 dram polyethylene vial.
(3) Cd covered irradiations exceeding 1 MWhr should be conducted within the CLICIT.