APPC12 B1-PMo-25
The 12th Asia Pacific Physics Conference
Nondestructive isotope detection with nuclear muon capture
T. Shimaa H. Ejiria,b, I.H. Hashimc, Y. Hinoc, Y. Kunoc, Y. Matsumotoc, K. Ninomiyac,
H. Sakamotoc, A. Satoc, A. Shinoharac, K. Takahisaa, and N.H. Tranc
a
b
c
RCNP, Osaka University, Ibaraki, Osaka 567-0047, Japan
Nuclear Science, Czech Technical University, Prague, Czech Republic
Graduate School of Science, Osaka University, Toyonaka, 560-0043, Japan
[email protected]
Nondestructive analysis of nuclear isotopes is of great importance in various fields of
basic science as well as applied science. We developed a new method for
nondestructive isotope analysis, MuCID (muon-capture isotope detection) [1]. In
MuCID, a sample is exposed to a high-intensity muon beam, and the -rays from the
radioactive isotopes produced by nuclear muon-capture reactions are measured with a
high-sensitivity and low-background Ge detector. To study the sensitivity of MuCID,
a test measurement for natural Mo sample was performed using a - beam provided
by the MuSIC muon source at RCNP, Osaka University. It was demonstrated that
MuCID can detect nuclear isotopes with quantities of gr ~ ngr contained in a sample,
and therefore it is will be useful as well as another method of nondestructive analysis
by RPID (Resonant Photonuclear Isotope Detection) [2], and complementary to the
nondestructive elemental (atomic) analysis with muonic X-ray detection.
[1] H. Ejiri et al., J. Phys. Soc. Jpn., Vol.82, 044202 (2013).
[2] H. Ejiri and T. Shima, Phys. Rev. S.T. – Acc. and Beams 15, 024701 (2012).
100
e+e-
Count [/keV/s]
99
10-1
Tc
96
96
Nb
97
Nb
Nb
96
Nb
90
96
Nb
Nb
96
10-2
90
Nb
90
Nb
Nb
10-3
10-4
0
500
1000
1500
E [keV]
2000
2500
-ray spectrum of Mo sample measured 22.25 h after irradiation with 1.8×109 -.
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