Many laboratories in the world have built telescope arrays based on silicon strip position-sensitive detectors such as MUST2^([1]),However,these methods lack detec-tion and identi cation capability of a large number o...Many laboratories in the world have built telescope arrays based on silicon strip position-sensitive detectors such as MUST2^([1]),However,these methods lack detec-tion and identi cation capability of a large number of low-energy particles produced over a wide range of beam en-ergies.To improve the present experimental capabilities,we have developed a trapezoid-shaped Frisch-grid ioniza-tion chamber(TFG-IC)as part of a telescope system to cover the identi cation of low-energy incident particles.展开更多
Heavy ion collision experiments are one of the important means to study the properties of nuclear matter.The CSR External-target Experiment(CEE)is a low-temperature,high-density nuclear matter measurement spectrom-ete...Heavy ion collision experiments are one of the important means to study the properties of nuclear matter.The CSR External-target Experiment(CEE)is a low-temperature,high-density nuclear matter measurement spectrom-eter used for heavy ion collision experiments,and it will become the rst large-scale nuclear physics experimental facility in China to operate in the GeV energy range after its completion.展开更多
Radon and its decay daughters are one of the main sources of natural radiation to humans and the second leading cause of lung cancer after smoking[1].In this paper,a new multi-wire impulse ionization chamber type inte...Radon and its decay daughters are one of the main sources of natural radiation to humans and the second leading cause of lung cancer after smoking[1].In this paper,a new multi-wire impulse ionization chamber type intended for continuous airborne radon activity measurements is described.展开更多
CEE(CSR External-target Experiment)will be the first large-scale nuclear physics experiment device running in GeV energy region based on the domestic nuclear physics big scientific device HIRFL-CSR.
A Fission-Parallel Plate Avalanche Counter(Fission-PPAC)has been developed for fast neutron measurements[1].The detector consists two sets of PPAC,where a ^(238)U(U_(3)O_(8))coating is put in the second set of PPAC as...A Fission-Parallel Plate Avalanche Counter(Fission-PPAC)has been developed for fast neutron measurements[1].The detector consists two sets of PPAC,where a ^(238)U(U_(3)O_(8))coating is put in the second set of PPAC as show in Fig.1(a)and physical map show in Fig.1(b).^(252)Cf source emits an spontaneous fission fragment and a neutron,the neutron passes through PPAC 1 and may be detected by PPAC 2 with a ^(238)U(U_(3)O_(8))coating.The total thickness of ^(238)U(U_(3)O_(8))is 600g/cm^(2),while the detection efficiency attain 8×10^(7).展开更多
文摘Many laboratories in the world have built telescope arrays based on silicon strip position-sensitive detectors such as MUST2^([1]),However,these methods lack detec-tion and identi cation capability of a large number of low-energy particles produced over a wide range of beam en-ergies.To improve the present experimental capabilities,we have developed a trapezoid-shaped Frisch-grid ioniza-tion chamber(TFG-IC)as part of a telescope system to cover the identi cation of low-energy incident particles.
文摘Heavy ion collision experiments are one of the important means to study the properties of nuclear matter.The CSR External-target Experiment(CEE)is a low-temperature,high-density nuclear matter measurement spectrom-eter used for heavy ion collision experiments,and it will become the rst large-scale nuclear physics experimental facility in China to operate in the GeV energy range after its completion.
文摘Radon and its decay daughters are one of the main sources of natural radiation to humans and the second leading cause of lung cancer after smoking[1].In this paper,a new multi-wire impulse ionization chamber type intended for continuous airborne radon activity measurements is described.
文摘CEE(CSR External-target Experiment)will be the first large-scale nuclear physics experiment device running in GeV energy region based on the domestic nuclear physics big scientific device HIRFL-CSR.
基金National Natural Science Foundation of China(U1432123,11575268,11875301,11675238)。
文摘A Fission-Parallel Plate Avalanche Counter(Fission-PPAC)has been developed for fast neutron measurements[1].The detector consists two sets of PPAC,where a ^(238)U(U_(3)O_(8))coating is put in the second set of PPAC as show in Fig.1(a)and physical map show in Fig.1(b).^(252)Cf source emits an spontaneous fission fragment and a neutron,the neutron passes through PPAC 1 and may be detected by PPAC 2 with a ^(238)U(U_(3)O_(8))coating.The total thickness of ^(238)U(U_(3)O_(8))is 600g/cm^(2),while the detection efficiency attain 8×10^(7).
