Druck-Materie 20b.qxd - JUWEL - Forschungszentrum Jülich

Table 2. Data of irradiation of ice and hydrate samples
No. of
experi
-ment
date
time of
irrad.
(hours)
T (K) irradiation
min/max
135
sample
T8/T12
(K) ignition
T12,
max
24 12.02.02 5 21/23.5 hemisphere ice – 160
comments
spontaneous
burp
25 12.02.02 10.4 30/32 – // – – 187.4 spontaneous
26 13.02.02 12.23 40/42.6 – // – 51/56 174.3
27 13.02.02 4 30/33 – // – 43.5/- 137.9 sample melted
28 14.02.02 7 31/32 – // – 39.5/46.2 167.7
29 14.02.02 5.33 17/20 – // – 23.5/25.2 169.2
35 18.02.02 9.0 20/25 – // – – 192.7 spontaneous
36 19.02.02 9.75 24/29 – // – – 192 spontaneous
37 19.02.02 15.0 34/37 – // – 44.6/47.7 196 sample melted
30 14.02.02 10.0 25/28
segment 7.5
mm, ice 2.2 g
32/35 194
31 15.02.02 11.0 20/23 – // – 26.3/26.6 193.2 new sample
32 16.02.02 3.0 20/23 – // – 28.6/34.3 134.5
33 16.02.02 5.0 39/41.4 – // – 51.5/57.5 140.7
34 16.02.02 3.33 40/41 – // – – 61 no burp
41 12.03.02 10.5 19/23.5 – // – – 191.5 spontaneous
42 13.03.02 5.3 22/27 – // – 32.3/35.1 159.1
43 13.03.02 5.0 35/37 – // – 45.7/50.3 140.1
2.5(1) 03.12.02 6.25 25.1/26.1
Segment 8.3
mm, ice 2.5 g
25.7/28.9 155.7 spontaneous
2.5(2) 04.12.02 8.62 25/26 – // – 25.5/29.6 167.4 spontaneous
2.5(3) 04.12.02 7.48 24.4/27.4 – // – 26/30 161 spontaneous
2.10 11.12.02 19.67 24.5/26.5
Segment.3 mm
ice (0.4 g)
24.3/26.9 127.1 spontaneous
38 20.02.02 12.8 26/29.4
ice beads
d=5mm, in Ar
32.5/33.5 80
9 4.12.01 12.0 27/34 – // – – – no burp
52 21.05.02 5.75 19/24 – // – ? ?
39 21.02.02 4.16 20/26.9
hemisphere
THF hydrate
– /30 96.9 slow burp
40 21.02.02 14.5 20/29.3 – // – 29/31 169
44 14.03.02 12.91 20.4/29.6 – // – – 160.0 spontaneous
45 14.03.02 7.0 30.4/38 – // – 60÷64 ~126 slow burp
49 14.05.02 5.25 20/25
methane hydrate
beads in
Ar
– 61.0 slow burp
50 16.05.02 13.0 20/25 – // – - 81 spontaneous
51 17.05.02 24 30/35 – // – ? 142
53 23.05.02 21.15 25/29 – // – 30/30 82.4
a few argon
near T12