Table 1 A summary of the 8 uranium metal samples including the sample name, type of metal surface pre-treatment, water vapour exposure length and the beam time examined.

From: In-situ, time resolved monitoring of uranium in BFS:OPC grout. Part 1: Corrosion in water vapour

Sample name

Pre-treatment

Exposure length (weeks)

Beam time examined

A1

As-received

1

1

A3

3

1

A6

6

1

A47*

47

2

A50*

50

2

N1

Nitric acid etched

1

2

N2

2

2

N6

6

2

N12

12

2

N22

22

2

  1. The sample names preceding with an A (Group A) received no previous surface preparation so were considered the as-received samples. Sample names preceding with an N (Group N) received nitric acid etching prior to grout encapsulation. *The two samples A3 and A6 were re-analysed on the second beam time after further exposure to water vapour. These were then renamed A47 and A50 respectively.
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