Chemical Match Output

Number:1a

Maker:Abbot Brown Isotope Handling Calculator No. 1, A.E.R.E., Harwell

Length: ⌀ 21.6 cm

Gauge Marks:

Scales Front: Many technical scales

Scales Back: Instructions

Info: Steve Seale Collection
Outer disk: Safe Handling Time, Source Distance, Inner Disk: Source Strength, Lead Thickness Used/Required for each of: Na²⁴, Co⁶⁰, Radium, Ta¹⁸², Ir¹⁹² , Au¹⁹⁸, I¹³¹