CONSTRUCTION OF A 6×6BGO ARRAY AND ITS MEASUREMENT OF LOW ENERGY PHOTONS

GU Yi-Fan; HE Jing-Tang; MIAO Ting; QIAN Zhong-Min; YU Ling; ZHU Guo-Yi

Chinese Physics C> 1990, Vol. 14> Issue(3) : 200-206

CONSTRUCTION OF A 6×6BGO ARRAY AND ITS MEASUREMENT OF LOW ENERGY PHOTONS

Institute of High Energy Physics,Academia Sinica

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Abstract：
A 6×6BGO array as a prototype of precise fully active electromagnetic calorimeter has been constructed.It consists of 36 Chinese-made BGO crystals,each being 20mm by 20mm in cross section and 200mm in depth,equipped with photomultiplier readout.To obtain linearity over a wide dynamic range,both the anode signal and a dynode signal were digitized.The array has been tested with monochromatic photons produced via (p,γ) reactions at the IHEP Van de Graaff accelerator in the energy range up to 21MeV.The response for photons has shown to the linear in this energy range.The FWHM energy resolution obtained follows a E^－1/2 dependence and is superior to that of BGO arrays reported in the literature.

References

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GU Yi-Fan, HE Jing-Tang, MIAO Ting, QIAN Zhong-Min, YU Ling and ZHU Guo-Yi. CONSTRUCTION OF A 6×6BGO ARRAY AND ITS MEASUREMENT OF LOW ENERGY PHOTONS[J]. Chinese Physics C, 1990, 14(3): 200-206.

GU Yi-Fan, HE Jing-Tang, MIAO Ting, QIAN Zhong-Min, YU Ling and ZHU Guo-Yi. CONSTRUCTION OF A 6×6BGO ARRAY AND ITS MEASUREMENT OF LOW ENERGY PHOTONS[J]. Chinese Physics C, 1990, 14(3): 200-206. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

CONSTRUCTION OF A 6×6BGO ARRAY AND ITS MEASUREMENT OF LOW ENERGY PHOTONS

Corresponding author: GU Yi-Fan,

Institute of High Energy Physics,Academia Sinica

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 1990-03-05

Abstract: A 6×6BGO array as a prototype of precise fully active electromagnetic calorimeter has been constructed.It consists of 36 Chinese-made BGO crystals,each being 20mm by 20mm in cross section and 200mm in depth,equipped with photomultiplier readout.To obtain linearity over a wide dynamic range,both the anode signal and a dynode signal were digitized.The array has been tested with monochromatic photons produced via (p,γ) reactions at the IHEP Van de Graaff accelerator in the energy range up to 21MeV.The response for photons has shown to the linear in this energy range.The FWHM energy resolution obtained follows a E^－1/2 dependence and is superior to that of BGO arrays reported in the literature.