Journal of Neuroinformatics and Neuroimaging

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
Reach Us +1-845-208-9209

Commentary - Journal of Neuroinformatics and Neuroimaging (2022) Volume 7, Issue 4

Experimental evaluation of Yonsei single-photon emission computed tomography (YSECT)

Kohei Ogasa*

Department of Neurosurgery, Iwate Medical University School of Medicine, Yahaba, Japan

Corresponding Author:
Kohei Ogasa
Department of Neurosurgery
Iwate Medical University School of Medicine
Yahaba, Japan
E-mail: [email protected]

Received: 26-July-2022, Manuscript No. AANN-22-73642; Editor assigned: 28-July-2022, Pre QC No. AANN-22-73642 (PQ); Reviewed: 11-Aug-2022, QC No. AANN-22-73642; Revised: 16-Aug-2022, Manuscript No. AANN -22-73642 (R); Published: 23-Aug-2022, DOI: 10.35841/aann-7.4.117

Citation: Ogasa K. Experimental evaluation of Yonsei single-photon emission computed tomography (YSECT). J NeuroInform Neuroimaging. 2022;7(4):117

Visit for more related articles at Journal of Neuroinformatics and Neuroimaging


The purpose of this study was to verify the chance of fuel rod pattern examination in a new fuel gathering utilizing the Yonsei single-photon emanation figured tomography (YSECT) framework. The YSECT framework comprised of three principal parts: four trapezoidal-formed bismuth germanate scintillator-based 64-channel identifiers, a semiconductor-based multi-channel information obtaining framework, and a turning stage. To survey the exhibition of the model YSECT, tomographic pictures were acquired for three agent fuel bar designs in the 6X6 cluster utilizing two delegate picture reproduction calculations. The fuel-bar designs were then evaluated utilizing an in-house fuel pole design examination calculation. In the exploratory outcomes, the single-directional projection pictures for those three fuel-pole designs very much separated each fuel-bar area, showing a Gaussian-top molded projection for a solitary 10 mm-measurement fuel bar with 12.1 mm full-width at half most extreme. At long last, we effectively confirmed the chance of the fuel bar design investigation for each of the three examples of new fuel poles with the tomographic pictures acquired by the rotational YSECT framework.


Yonsei single-photon emission computed tomography (YSECT), Nuclear fuel assembly, Prototype, Fuel rod pattern analysis.


The International Atomic Energy Agency (IAEA) has dedicated work to the advancement of check strategies for spent atomic fuel (SNF) gatherings and the observing of atomic materials for the executives and management of tranquil atomic exercises in light of non-damaging examination (NDA) methods. Notwithstanding, non-disastrously checking SNF gatherings is famously troublesome, and a few strategies previously applied by IAEA likewise experience the ill effects of specialized issues and serious level of vulnerability. For instance, dissimilar to the volume averaging evaluation of radioactivity of the SNF gathering, Cherenkov radiation seeing gear has been utilized for bar by-bar check of SNF congregations [1]. This hardware is a camera integrating a touchy two-layered (2-D) indicator of bright light and a channel obstructing noticeable and infrared light. An overseer situated over the water stockpiling of the SNF can, by snapping a photo in an upward direction toward the gathering utilizing this gear, get the discharge dissemination of Cherenkov radiation. Nonetheless, Cherenkov radiation imaging has hindrances: halfway imperfection in the profundity heading of fuel bars are challenging to recognize, and SNF gathering check can be achieved exclusively in situations where half or a greater amount of the fuel poles have been subbed [2].

The International Atomic Energy Agency has explored for very nearly thirty years, through different ventures, to really utilize the single-photon discharge processed tomography (SPECT) procedure for identifying halfway imperfection of SNF gatherings, inferable from its natural imaging capacity. This strategy is fit for separation of fractional imperfection by examining the bar by-bar power of the picture in regards to the three dimensional gamma discharge appropriation in the fuel gathering; its check exactness, fundamentally, is more than 70%. In a joint effort with the IAEA, European specialists have created Passive Gamma Emission Tomography gear for halfway deformity discovery of SNF, which comprises of 174 little measured CdZnTe identifiers and a tungsten collimator with trapezoidal-molded openings [3]. The IAEA certificated the PGET in 2017 and as of late endorsed the joined DCVD-PGET lobbies for halfway and more modest imperfections of SNF preceding exchange to dry capacity. Notwithstanding, the PGET is still in the beginning phases and is as yet expected to work on its aversion to precisely recognize fractional imperfection of SNF gathering inside the necessary review time, around 1-2 h for each gathering. The IAEA, thusly, has attempted to build the responsiveness of the PGET by supplanting the little measured semiconductor with a somewhat bigger scintillator [4].

In the past review, we planned a scintillator-based gammabeam discovery framework improved for 137Cs source that is major radioactive isotopes stayed in spent fuel get together cooled more than 40 years, utilizing Monte Carlo recreation. Moreover, the review showed the attainability of quick tomographic picture procurement of the PLUS7 fuel gathering, which is a get together kind of Combustion Engineering 16 × 16 comprising of 236 4.1%-advanced fuel poles, by and large utilized in South Korea. The framework enhancement was completed and the chance of fuel pole design examination by tomographic imaging of new fuel gatherings with the YSECT framework was tentatively confirmed in this review [5].


In this review, we assembled and tried the model YSECT framework. The YSECT framework comprised of four BGO scintillator-based indicators and a semiconductor-based multi-channel DAQ framework, which might work with expandability and effective minimal expense support. With the rotational YSECT framework, the tomographic pictures of three fuel bar designs in the test new fuel gathering were effectively reproduced by FBP and MLEM calculations. Despite the fact that these pictures showed poor spatial goal by utilizing the somewhat bigger estimated finder in the YSECT framework, we conquered this restriction by utilizing the in-house picture examination calculation and which brings about the fruitful fuel bar design investigation. Moreover, we expect that the gamma-beam recognition awareness of the YSECT framework was extensively expanded, contrasted and the PGET utilized little estimated semiconductor finders.

Subsequently, this work reasoned that the YSECT can possibly give tomographic picture data of SNF gathering from the exploratory outcomes with low action of test fuel poles. Later on, we will complete the presentation trial of this model YSECT framework in wet capacity with a full number of fuel poles like the genuine SNF. Additionally, for commonsense purposes, strengthening gadgets will be added to the YSECT framework by thinking about the foundation radiation, particularly from neutrons, also. Besides, to conquer the ongoing restriction in precise tomographic imaging of the standard of the SNF gathering, because of solid lessening, we might propose another sort of filtering framework, and profound learning-based constriction adjustment guide and de-noising map with layer-by-layer different threshold levels in the future.


  1. Vaccaro S, Gauld IC, Hu J, et al. Advancing the Fork detector for quantitative spent nuclear fuel verification. Nucl Instrum Methods Phys Res A: Accel Spectrom Detect Assoc Equip. 2018;888:202-17.
  2. Indexed at, Google Scholar, Cross Ref

  3. Lee SH, Moon JH. An Assessment of the Radiation Dose Rate Due to An Occurrence of the Defect on the Spent Nuclear Fuel Rod. J Radiat Prot Res. 2009;34(3):144-50.
  4. Indexed at, Google Scholar

  5. Brayfindley E, Smith RC, Mattingly J, et al. Automated defect detection in spent nuclear fuel using combined Cerenkov radiation and gamma emission tomography data. Nucl Technol. 2018;204(3):343-53.
  6. Indexed at, Google Scholar, Cross Ref

  7. Choi HJ, Kang IS, Kim KB, et al. Optimization of single-photon emission computed tomography system for fast verification of spent fuel assembly: a Monte Carlo study. J Instrum. 2019;14(07):T07002.
  8. Indexed at, Google Scholar, Cross Ref

  9. Kuribara M, Nemoto K. Development of new UV-II Cerenkov viewing device. IEEE Trans Nucl Sci. 1994;41(1):331-5.
  10. Google Scholar, Cross Ref

Get the App