Neolith second prototype efficiency curves for neutrons and tritons (Neolith-s@SAMURAI)

P20

sato: Summary of efficiency curves obtained for neutron+charged particle/neutron/triton/cosmic ray

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

makimura: neutrons from a water tank (stopper of 52Ca) entered neolith-s (202507010315)

Penetrating charged particles are well suppressed

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

makimura: neutrons from a water tank (stopper of 52Ca) entered neolith-s (202506281800)

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

makimura: neutrons from a water tank (stopper of 52Ca) entered neolith-s (202506281130)

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

makimura: neutrons from a water tank (stopper of 3He) entered neolith-s (202506271823)

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

Makimura: t@246.3 MeV/u directly impinged on Neolith-s (202506271532)

► Ns1, Potential, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, M=Nwire
► Ns1, Potential, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, M=Nhit
► Ns1, Cathode-U, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, M=Nwire
► Ns2, Potential, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, M=Nhit
► Ns2, Cathode-U, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, Cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

makimura: neutrons from a water tank (stopper of 52Ca) entered neolith-s (202506260642)

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V

makimura: neutrons from a water tank (stopper of 52Ca) entered neolith-s (202506260325)

► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns1, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns1, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns1, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nwire
► Ns2, Potential, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V, m=Nhit
► Ns2, Cathode-U, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V
► Ns2, Cathode-V, cathode: 8 mm, ArCH4(20%), Vth=+0.55 V