Building a VME spectrometer and testing Si PIN diode detector: a feasibility study for the first nuclear astrophysical experiments using a pelletron

Le Xuan Chung1, Le Tuan Anh2, Phan Viet Cuong2, Mai Van Dien1, Pham Duc Khue1, Bui Thi Hoa3, Bui Duy Linh1, Nguyen The Nghia3, Vi Ho Phong3, Nguyen Duc Ton1
1 Institute for Nuclear Science and Technology, VINATOM, P.O.Box 5T-160, Nghia Do, Hanoi, Vietnam
2 Research and Development Center for Radiation Technology, VINATOM, Thu Duc, Ho Chi Minh, Vietnam
3 Hanoi University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam

Main Article Content


This work presents the logical design, connections between NIM and VME elec­tronic modules, and the data acquisition programming to build a complete detector readout system. The test experiments were carried out with commercial silicon PIN diode S3590-09 bare detectors bombarded by charged particles from a 241Am α-source and Rutherford elastic backscattering (RBS) protons induced by 2.5 MeV proton beam bombarding on an Au-on-glass target, and with a NaI scintillation detector bombarded by gammas from 27Al(p, γ)28Si reaction with proton beam energy of 1.379 MeV. The test showed that the spectrometer operated steadily and its versatility for different kind of detector. The energy resolutions of the Si diodes were less than 0.5% energy of a charged particle, which satisfies the foreseen requirement for the upcoming experiments.

Article Details


[1]. Shinya Wanajo, Hans-Thomas Janka, and Shigeru Kubono, The Astrophysi¬cal Journal 729, 46, 2011.
[2]. C. Frohlich et al., The Astrophysical Journal 637, 415, 2006.
[3]. C. Frohlich et al., Physical Review Letters 96, 142502, 2006.
[4]. H. Chen et al., Nuclear Instrumentals and Methods in Physics Research B, 211, 1, 2003.
[5]. L. Y. Zhang et al., The Astrophysical Journal 868, 24, 2018.
[6]. kpin1052e.pdf.
[10]. products/v1785/
[13]. L.X. Chung et. al., Communications in Physics 22, 263, 2012.
[16]. Nguyen The Nghia, Nguyen Thi Lan, Le Hong Khiem, Vi Ho Phong, Bui Van Loat, Tran The Anh, Nuclear Science and Technology 3, 3, 2013.
[17]. Phan Viet Cuong, Le Tuan Anh, Le Xuan Chung, Nguyen Hong Ha, Ho Thi Thao, and Pham Duc Khue, EPJ Web of Conferences 206, 08004, 2018.