Development of gamma spectroscopy employing NaI(Tl) detector 3 inch × 3 inch and readout electronic of flash-ADC/FPGA-based technology
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Vo Hong Hai
Abstract
In this article the development of a gamma spectroscopy system is described using a scintillation detector NaI(Tl) of 3 inch × 3 inch. The readout electronic for the spectroscopy is built from the fast analog-digital conversion of Flash Analog-Digital Converter (Flash-ADC) 250 MHz – 8 bits resolution, and the embedded Field-Programmable Gate Array (FPGA) technology. The embedded VHSIC Hardware Description Language (VHDL) code for FPGA is built in such a way that it works as a multi channel analyser (MCA) with 4096 Digital Charge Integration (DCI) channels. A pulse generator with frequency varying from Hz up to 12 kHz is used to evaluate the time response of the system. Two standard radioisotope sources of 133Ba and 152Eu with multi gamma energies ranging from several tens keV to MeV are used to evaluate the linearity and energy resolution of the system.
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© 2015, Carl Hanser Verlag, München
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- Development of gamma spectroscopy employing NaI(Tl) detector 3 inch × 3 inch and readout electronic of flash-ADC/FPGA-based technology
Articles in the same Issue
- Contents/Inhalt
- Contents
- Summaries/Kurzfassungen
- Summaries
- Technical Contributions/Fachbeiträge
- Evaluation of A-dependence of cross-sections for light charged particle production in proton induced reactions at intermediate energies
- Sensitivity study with respect to direction of ADI method during re-flooding in AHWR
- Experimental investigation of thermal mixing phenomena in a tee pipe
- Flow impinging effect of critical heat flux and nucleation boiling heat transfer on a downward facing heating surface
- Operating experience feedback from safety significant events at research reactors
- Review of regulatory requirements relevant to calibration of monitoring instruments in research reactors
- The dust characteristics in the collisional plasma sheath at the presence of external magnetic field
- Shamir Secret Sharing Scheme with Dynamic Access Structure (SSSDAS): case study on nuclear power plant
- Criticality calculations with PN approximation for certain scattering parameters of Anlı-Güngör and Henyey-Greenstein phase functions in spherical geometry
- An analytical approach for a nodal formulation of a two-dimensional fixed-source neutron transport problem in heterogeneous medium
- Evaluation of gross radioactivity in foodstuffs
- Development of gamma spectroscopy employing NaI(Tl) detector 3 inch × 3 inch and readout electronic of flash-ADC/FPGA-based technology
