Abstract
A neutron generating target using a Be(p,n) reaction was developed for a RIKEN compact accelerator-driven neutron source (RANS). The major problem of targets using a low energy proton beam is blistering, which is actually due to hydrogen embrittlement caused by injected hydrogen. To avoid this problem, the authors have proposed a new target design with a hydrogen diffusible backing and its design was modeled using finite-element analysis (FEM) and Monte-Carlo ion injection simulation. Also, the mechanical strength and heat removal capability of the target were considered by FEM. Based on those simulations, a new target was manufactured and applied to RANS and operated for 1 year without any problems. Also, the residual radioactivity of the target was investigated by experiment and simulation.
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References
Kiyanagi Y (2006) Experimental studies on neutronic performance of various cold-neutron moderators for the pulsed neutron sources. Nucl Instrum Meth A 562:561–564
Kim IJ, Choi HD (2005) Development of D–D neutron generator. Nucl Instrum Methods B 241:917–920
Lavelle CM et al (2008) Neutronic design and measured performance of the low energy neutron source (LENS) target moderator reflector assembly. Nucl Instrum Methods A 587:324–341
Bayanov B, Belov V, Taskaev S (2006) Neutron-producing target for accelerator-based neutron capture therapy. J Phys Conf Ser 41:460–465
Bayanov B, Kashaeva E, Makarov A, Malyshkin G, Samarin S, Taskaev S (2009) A neutron producing target for a BINP accelerator-based neutron source. Appl Radiat Isot 67(7–8 Suppl):S282–S284
Aleynik V, Burdakov A, Davydenko V, Ivanov A, Kanygin V, Kuznetsov A, Makarov A, Sorokin I, Taskaev S (2011) BINP accelerator-based epithermal neutron source. Appl Radiat Isot 69:1635–1638
Yamagata Y, Otake Y, Hirota K, Wang S (2013) Development of compact neutron source for radiography using a proton linear accelerator. Radiat Ind 134:16–19 (in Japanese)
Astrelin VT et al (2010) Blistering of the selected materials irradiated by intense 200 keV proton beam. J Nucl Mater 396:43–48
Hawksworth MR (1977) Neutron radiography: equipment and methods. Atomic Energy Rev 15(2):169–220
PSTAR program is provided by the National Institute of Standards and Technology (2011). http://physics.nist.gov/PhysRefData/Star/Text/PSTAR.html
Nishimura C, Komaki M, Amano M (1991) Hydrogen permeation characteristics of vanadium–nickel alloys. Mater Trans 32(5):501–507
Bauer HC, Völki J, Tretkowski J, Alefeld G (1978) Diffusion of hydrogen and deuterium in Nb and Ta at high concentrations. Z Phys B 29:17–26
Wipf H (2001) Solubility and diffusion of hydrogen in pure metals and alloys. Phys Scr T94:43–51
Ishikawa T, Mclellan RB (1985) The diffusivity of hydrogen in copper at low temperature. J Phys Chem Solids 46:445–447
Ichimura M, Sasajima Y, Imabayashi M (1991) Grain boundary effect on diffusion of hydrogen in pure aluminum. Mater Trans 32:1109–1114
Yano S, Tada M, Matsui H (1991) Hydrogen embrittlement of MFR candidate vanadium alloys. J Nucl Mater 179–181:779–782
Nambu T, Shimizu K, Matsumoto Y, Rong R, Watanabe N, Yukawa H, Morinaga M, Yasuda I (2007) Enhanced hydrogen embrittlement of Pd-coated niobium metal membrane detected by in situ small punch test under hydrogen permeation. J Alloy Compd 446–447:588–592
Waseda Y et al (2000) Handbook of metals. The Japan Institute of Metals, Maruzen (in Japanese). ISBN 4-621-04745-0
SRIM code by James F. Ziegler (2012). http://www.srim.org
Momose T, Hirayama H, Ishimaru H (1993) Influence of synchrotron radiation on corrosion at the boundary of cooling water and metals. Vacuum 44:991–996
Sago T, Niita K et al (2013) Particle and Heavy Ion Transport Code Systems PHITS Version 2.52. J Nucl Sci Technol 50(9):913–923
Takada H, Kosako K (1999) Development of the DCHAIN-SP code for analyzing decay and build-up characteristics of spallation products. JAERI-Data/Code 99-008
Kamata S et al. (2006) Measurements of differential thick target neutron yields Be(p,xn) reactions induced by 11 MeV protons. In: 2006 annual meeting of the atomic energy society of Japan (in Japanese)
Wang S, Ju J, Hirota K et al (2012) Simulation and design of moderator/reflector/shielding assembly for a compact neutron source at RIKEN. In: 3rd international the meeting of the union of compact accelerator-driven neutron sources UCANS-III Bilbao, Spain, M-III
Acknowledgments
The authors would like to express their gratitude for the advice from JCANS (Japan Collaboration on compact accelerator-driven neutron sources) members especially Prof. Y. Kiyanagi, Prof. H. M. Shimizu and Prof. Y. Iwashita. The authors would like to acknowledge the support from Advanced Manufacturing Support Team, RIKEN Center for Advanced Photonics.
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Yamagata, Y., Hirota, K., Ju, J. et al. Development of a neutron generating target for compact neutron sources using low energy proton beams. J Radioanal Nucl Chem 305, 787–794 (2015). https://doi.org/10.1007/s10967-015-4059-8
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DOI: https://doi.org/10.1007/s10967-015-4059-8