- 20 -

150

wi8s

{ .055

V0

L A

130

&

120 F
110

Il.

A - Belle Scaevola leaves

100

-

June

20,

1958

B - Belle Scaevola leaves

Activity

May 10,

90 -

1958

80
O

t
6

Lae

L

Cel4tlppl4i
cel44 ppl 44

a3

2134

*] ¥

145

50 LI

’

ho LI
30

R203pn103

RylO6py,106

ZrO 5Onb95d

-76
+

498
2515

20
10

Fig. 6.

Gamma spectrum curves of Scaevola leaves collected

at Belle Island on May 10, 1958, prior to the wi85

contamination and of those collected on June 20, 1958,

after contamination.

only Cs157-Bal37,

The earlier samples contained

_

On

Qo

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