Initial results on SiPMs performance for use in medical imaging

Efthimiou, Nikos; Georgiou, Maria; Argyropoulos, Giannis; Fysikopoulos, Eleftherios; Stoppa, David; Loudos, George; Panayiotakis, G.

doi:10.1088/0957-0233/22/11/114001

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…These differences are primarily dependent on the material and composition of the scintillator. Micro SL-30035 contains a wider active area and consists of many microcells, thus providing higher amplitude pulses compared to Micro SL-10035 [7]. The pulse characteristics after the operating stage have also been measured.…”

Section: Array Sipm Detectormentioning

confidence: 99%

Performance characteristics of a silicon photomultiplier based compact radiation detector for Homeland Security applications

Park¹,

Joo²

2015

Nuclear Instruments and Methods in Physics Research Section A:

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Section: Array Sipm Detectormentioning

confidence: 99%

Performance characteristics of a silicon photomultiplier based compact radiation detector for Homeland Security applications

Park¹,

Joo²

2015

Nuclear Instruments and Methods in Physics Research Section A:

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“…It mainly depends on the material and composition of scintillator. Micro SL -30035 contains wider active area and many cells and has higher amplitude pulses due to their higher capacitance properties [7]. The pulse characteristics after the operating stage have been measured.…”

Section: B Array Sipm Detectormentioning

confidence: 99%

Design of a silicon photomultiplier based compact radiation detector for Homeland Security screening

Park

Jeon

Lee

et al. 2013

2013 3rd International Conference on Advancements in Nuclear Instrumentation, Measurement Methods and Their Applications (ANIMM

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Next-generation compact radiation detector was studied for more accurate measurement of radiation and improvement of reliability of the detector with purpose of developing of radiation protection technology and military application. The radiation detector which was used previously had some limitations due to the bulky size, limited range and the environment of radiation measurement. On the other hand, the compact radiation detector under this study which has adopted the silicon photomultiplier seems to be suitable for the application because of its physical excellence which are characterized by its small size, high sensitivity and durability. Accordingly, a SiPM based Scintillation detector has been made as a part of basic study of military radiation detector development. The detector has been tested for obtaining the operating characteristics of a sensor and analyzed with variation of parameter values and the efficiency of detection in accordance with the factor of measurement environment of radiation. The two SiPM based Scintillation detectors with the LYSO, BGO and CsI:Tl scintillator were made and the detectors were analyzed with the variation of operating characteristics as reverse bias, operating temperature and high magnetic field that are depend on environmental changes of radiation measurement. The results of three scintillators for a photon count rate and spectra were compared with each other. It was found that there are variations of radiation detection which are characterized by reverse bias, temperature and high magnetic field. Also, It was found that there were the 11.9 % for the LYSO, 15.5 % for BGO and 13.5 % for CsI:Tl energy resolution using array SiPM, and 18 % for CsI:Tl energy resolution using single SiPM, respectively when we measured energy resolution of 511keV for ²²Na. The results demonstrate the potential of SiPM based compact radiation detector to be used widely for Homeland Security applications.Index Terms-Silicon photomultiplier (SiPM), lutetium yttrium oxyorthosilicate (LYSO), bismuth gemanade (BGO), thallium doped cesium iodide (CsI:Tl), reverse bias, temperature, magnetic field, photon count rate, energy resolution, direction, homeland security applications.

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“…Silicon photomultipliers (SiPMs) have found their way into many applications including high resolution positron emission tomography (PET) due to their small form-factor, insensitivity to magnetic field, high gain, and high quantum efficiency, and their cost-effectiveness (Aull et al 2002, Del Guerra et al 2010, Efthimiou et al 2011, Sabet et al 2012, Grant et al 2016.…”

Section: Introductionmentioning

confidence: 99%

Generic high resolution PET detector block using 12 × 12 SiPM array

Sajedi

Zeraatkar

Taheri

et al. 2018

Biomed. Phys. Eng. Express

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With the advancement of the Silicon Photomultiplier (SiPM) technology, these devices are becoming the mainstream for use in high resolution PET detectors especially where the compatibility with magnetic field is critical. Large-area SiPM arrays are now widely used in high resolution PET detector modules. The challenges are emerged in the readout and timing circuitry by the increase of pixel density in the area. The application-specific integrated circuits (ASICs) are developed to readout arrays with standard anode/ cathode outputs. SiPM detection principle, which produces dark current noise in the inactive pixels, makes the multiplexing techniques more challenging rather than the PMT signals. In this work a new generic PET detector block using SiPM arrays with three outputs (anode, cathode, and fast) is presented which is suitable for applications in small animal, brain, and clinical PET imaging. The block detector accepts a 12×12 array with both standard and fast output signals with an overall detector dimension of 50×50 mm 2 . A new version of the scrambled crosswire readout (SCR) method was implemented to reduce 144 'fast outputs' to 9 tile signals and 144 standard outputs to 16 energy channels. The tile signals are also used to generate time pickoff information for timing resolution. We implemented time-to-digital converter (TDC) in Xilinx's SPARTAN6 field programmable gate array (FPGA) by using the 64-tap delay line. This low cost chip performs all required processes for position, energy, time, and interface architecture. The attached 24×24 LYSO:Ce array with 2×2×10 mm 3 pixels is imaged and pixels are resolved clearly in the room temperature. The measured energy resolution of the detector block after calibration for all crystal pixels is 12.4% at 511 keV. Also, the coincidence resolving time for two identical modules was measured at 1.85 ns.

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Initial results on SiPMs performance for use in medical imaging

Cited by 7 publications

References 22 publications

Performance characteristics of a silicon photomultiplier based compact radiation detector for Homeland Security applications

Performance characteristics of a silicon photomultiplier based compact radiation detector for Homeland Security applications

Design of a silicon photomultiplier based compact radiation detector for Homeland Security screening

Generic high resolution PET detector block using 12 × 12 SiPM array

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