THE COMPARISON OF CARBON-ATOM DISPLACEMENT RATE IN GRAPHITE IN THE DRAGON REACTOR, THE PETTEN HTR AND LOW ENRICHMENT HTR. Project DRAGON.
Technical Report
·
OSTI ID:4097960
This report describes the way in which the physical behaviour of graphite irradiated in different reactors can be related to one another by using a common fast neutron dose scale. The dose scale used is achieved by converting the measured nickel or iron fast neutron dose to an equivalent fission dose (or fluence). A relationship is established between the carbon atom displacement rate and the equivalent fission flux. Using high energy neutron spectra calculated by a Monte Carlo method the carbon atom displacement rate per unit equivalent fission flux in Dragon and the Petten HFR were respectively 1.51 and 1.75 times that in PLUTO (or DIDO). With the same methods of fast neutron spectrum calculation in a typical low enrichment HTR with a power density of 8 MW/m{sup 3} it was found that the time required to reach a DIDO nickel dose of 2 x 10{sup 22} n cm{sup -2} in the graphite moderator immediately adjacent to the fuel was 15.4 years. In addition the carbon atom displacement rate per unit equivalent fission flux in the moderator was found to vary between 1.46 and 2.26 times that in PLUTO (or DIDO).
- Research Organization:
- Atomic Energy Establishment, Winfrith (England)
- NSA Number:
- NSA-25-003872
- OSTI ID:
- 4097960
- Report Number(s):
- DP-Report--559
- Country of Publication:
- United Kingdom
- Language:
- English
Similar Records
COMPARISON OF CARBON-ATOM DISPLACEMENT RATE IN GRAPHITE IN THE DRAGON REACTOR, THE PETTEN HFR, AND OTHER REACTORS. Project DRAGON.
Correlation of graphite irradiations in the High Flux Reactor Petten and in high temperature reactors. Dragon Project.
GRAPHITE IRRADIATION EXPERIMENTS IN H.F.R. PETTEN. PART II. RESULTS (CAPSULES 1 TO 8 INCLUSIVE). Project DRAGON.
Technical Report
·
Thu Aug 15 00:00:00 EDT 1968
·
OSTI ID:4650083
Correlation of graphite irradiations in the High Flux Reactor Petten and in high temperature reactors. Dragon Project.
Technical Report
·
Mon Sep 15 00:00:00 EDT 1969
·
OSTI ID:4534631
GRAPHITE IRRADIATION EXPERIMENTS IN H.F.R. PETTEN. PART II. RESULTS (CAPSULES 1 TO 8 INCLUSIVE). Project DRAGON.
Technical Report
·
Fri Mar 14 23:00:00 EST 1969
·
OSTI ID:4655516
Related Subjects
DIDO REACTORS/moderator for
comparison fast neutron dose scale for radiation effects on graphite
DRAGON
FAST NEUTRONS
GRAPHITE
GRAPHITE/radiation effects on
comparison dose scale for fast neutron
HFR
HIGH-TEMPERATURE GAS-COOLED REACTOR EXPERIMENT/ moderator for
comparison fast neutron dose scale for radiation effects on graphite
N30250 -- Metals
Ceramics
& Other Materials--Ceramics & Cermets--Radiation Effects
N38150* --Power Reactor Development--Fuels
NEUTRONS
FAST/effects on graphite
comparison dose scale for
PETTEN TEST REACTOR/moderator for
comparison fast neutron dose scale for radiation effects on graphite
PLUTO
POWER REACTORS
RADIATION DOSES
RADIATION EFFECTS
REACTOR CORE
RESEARCH REACTORS
comparison fast neutron dose scale for radiation effects on graphite
DRAGON
FAST NEUTRONS
GRAPHITE
GRAPHITE/radiation effects on
comparison dose scale for fast neutron
HFR
HIGH-TEMPERATURE GAS-COOLED REACTOR EXPERIMENT/ moderator for
comparison fast neutron dose scale for radiation effects on graphite
N30250 -- Metals
Ceramics
& Other Materials--Ceramics & Cermets--Radiation Effects
N38150* --Power Reactor Development--Fuels
NEUTRONS
FAST/effects on graphite
comparison dose scale for
PETTEN TEST REACTOR/moderator for
comparison fast neutron dose scale for radiation effects on graphite
PLUTO
POWER REACTORS
RADIATION DOSES
RADIATION EFFECTS
REACTOR CORE
RESEARCH REACTORS