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Neutrons
Z
ISOLDE
Nat. & stable
ISOL-AT : ISOL Actinide Targets (JRA1)ISOL-AT : ISOL Actinide Targets (JRA1)
UC/ThC 56%
ZrO 1%
Ta 11%
LaC 6%
MgO 4%
ISOLDE UCx over more than 25 years
Actinide targets ISOLDE 2006 (>56%)
UO2 + 6C → UC2 + 2C + 2COThO2 + 6C → ThC2 + 2C + 2CO
12 targets / year
UC2/ThC2
Other targets
total >800 isotopes
ISOL-AT (JRA1) Joint EURISOL-EURONS Town meeting Helsinki 19th Sept 07ISOL-AT (JRA1) Joint EURISOL-EURONS Town meeting Helsinki 19th Sept 07
Actinide targetssynthesis
Properties(after irradiation)
Science (2000)
“Chimie douce (2001)”
Carbon nanotubefibers
Heat conductivity(before irradiaton)= 3000 W/m K
Sol-gel from uranyl nitrate solutions.U3O8 + 20C → 3UC2 + 6C + 8CO
m
nm/sub-m SiC
Record yields 21Mgfrom nanostructuredtargetswith pulsed beam
Metal/ThO2
Composite targetNb
Al2O3
Improved target longevity
ISOL-AT (JRA1) Joint EURISOL-EURONS Town meeting Helsinki 19th Sept 07ISOL-AT (JRA1) Joint EURISOL-EURONS Town meeting Helsinki 19th Sept 07
Carbon Window
Dump
proton
Disk UCx Ø=6 cm
Pulsed beamphotofission1.2 s (0.9s) cycling rate
GW instantaneous beam power
660 g U, stacked disks
Uranium target licensingfor high beam power in progress
PETERSBURG NUCLEARPHYSICS INSTITUTE
ISOL-AT (JRA1) Joint EURISOL-EURONS Town meeting Helsinki 19th Sept 07ISOL-AT (JRA1) Joint EURISOL-EURONS Town meeting Helsinki 19th Sept 07
40eme JdA at CERN in 2010
Post irradiation examination(LiSoR, MEGAPIE, TARPIPE)
Hot cell facilityRelease curve of 85Br
0.1
1
10
0.1 1 10 100 1000
tdelay+1/2tcollection [s]
b c
ou
nts
[m
s-1
co
lle
cti
on
tim
e] Experimental data
Theoretical fit
Production/release benchmarking:ISOLDE database
(ISOL-HT)