Table 2 The comparation of the main-energy neutron fluences at the diamond position measured using the diamond detector and fission chamber/associated alpha particle method, and the comparation of the proportions of the low-energy neutrons measured with the diamond detector and the EJ-309 liquid scintillator.

From: Simultaneous measurement of energy spectrum and fluence of neutrons using a diamond detector

 

Deuteron energy (MeV)

Main energy of neutrons (MeV)

Main-energy neutron fluence at the diamond position (n/cm2)

The proportion of the low-energy neutrons

Diamond

238U fission chamber/associated alpha particle

Diamond (%)

EJ-309 (%)

d–d neutron source

2.46

5.0

3.21 × 107

(3.17 ± 0.11) × 107

14.6

16.8

2.87

5.5

2.99 × 107

(2.92 ± 0.11) × 107

12.6

17.2

6.00

8.5

3.09 × 107

(2.90 ± 0.11) × 107

25.5

23.5

6.98

9.5

4.06 × 107

(4.15 ± 0.16) × 107

40.8

29.2

7.98

10.5

2.02 × 107

(2.05 ± 0.08) × 107

51.2

38.5

d–t neutron source

0.3

14.2

3.75 × 108

(3.62 ± 0.18) × 108

–

–

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