Performance test of the MAIKo active target

Abstract

A new active target named MAIKo (Mu-PIC based Active target for Inverse Kinematics${}_{\circ }$) has been developed at Kyoto University and Research Center for Nuclear Physics (RCNP), Osaka University. MAIKo is suited for missing-mass spectroscopy of unstable nuclei at forward scattering angles in inverse kinematics. MAIKo consists of a time projection chamber (TPC), which incorporates a micro-pixel chamber ($\mu$-PIC) as the electron multiplication and collection system. In MAIKo, the medium gas also plays the role of a reaction target, thus allowing detection of low-energy recoil particles with high position resolution. The MAIKo TPC was commissioned with He(93%)+iso-C${}_4$H${}_{10}$(7%) and He(93%)+CO${}_2$(7%) mixture gasses at 430 hPa. The gas gain and the angular resolution of MAIKo were evaluated with an alpha source and a ${}^4$He beam at 56 MeV. The TPC was stably operated up to 1000-kcps beam intensity. A tracking algorithm using the Hough transform method has been developed to analyze scattering events. An angular resolution of 1.3${}^{\circ }$ was achieved for scattered ${}^4$He particles.

arXiv comment13 pages, 17 figures

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Cited by in corpus (11)

• Experimental study of intruder components in light neutron-rich nuclei via single-nucleon transfer reaction
• Neutron quadrupole transition strength in ${}^{10}$C deduced from the ${}^{10}$C$(\alpha ,{\alpha }^{\prime })$ measurement with the MAIKo active target
• Tracking Algorithms for TPCs using Consensus-Based Robust Estimators
• Machine learning method for ${}^{12}$C event classification and reconstruction in the active target time-projection chamber
• Measurement of the high energy $\gamma$-rays from heavy ion reactions using Čerenkov detector
• Simulations and analysis tools for charge-exchange $(d,{}^2\text{He})$ reactions in inverse kinematics with the AT-TPC
• The Notre-Dame Cube: An active-target time-projection chamber for radioactive beam experiments and detector development
• Digital Signal Analysis based on Convolutional Neural Networks for Active Target Time Projection Chambers
• Photodisintegration Cross Section of ${}^4$He in the Giant Dipole Resonance Energy Region
• Performance of prototype Dual Gain Multilayer Thick GEM with high-intensity heavy-ion beam injections in low-pressure hydrogen gas
• Novel multi-layer plastic-scintillator-based solid active proton target for inverse-kinematics experiments