TY - JOUR

T1 - Hard Gamma Quantum Flow Detector with Minimized Image Noise and Improved Registration Efficiency

AU - Afanasenko, S. S.

AU - Akhmetshin, R. R.

AU - Grigoriev, D. N.

AU - Kazanin, V. F.

AU - Porosev, V. V.

AU - Timofeev, A. V.

AU - Shcherbakov, R. I.

N1 - Funding Information: The authors are grateful to Kuraray Co., LTD (Methacrylic Resin Division, Scintillation Materials) for providing samples of the wavelength-shifting fiber. Publisher Copyright: © 2021, Allerton Press, Inc.

PY - 2021/3

Y1 - 2021/3

N2 - Problems associated with the radiography of objects made of steel having thickness of 100 mm and more are outlined. The classical method of gathering information provides for mounting semiconductor photo detectors directly on scintillators. As a result, gamma radiation scattered in a scintillator enters photo detector increasing the image noise and providing a negative effect on processing electronics. A method to design a recording system using a wavelength-shifting fiber having no disadvantages of the classical technique is proposed. This method makes it possible to decrease the image noise, to remove electronics from direct effect of gamma radiation and to increase the registration efficiency. Various approaches of implementing the method proposed to detect signals are explored experimentally with selecting the optimal techniques. This research enabled developing a design base to engineer recording element. The results on measuring parameters of the registering element are presented.

AB - Problems associated with the radiography of objects made of steel having thickness of 100 mm and more are outlined. The classical method of gathering information provides for mounting semiconductor photo detectors directly on scintillators. As a result, gamma radiation scattered in a scintillator enters photo detector increasing the image noise and providing a negative effect on processing electronics. A method to design a recording system using a wavelength-shifting fiber having no disadvantages of the classical technique is proposed. This method makes it possible to decrease the image noise, to remove electronics from direct effect of gamma radiation and to increase the registration efficiency. Various approaches of implementing the method proposed to detect signals are explored experimentally with selecting the optimal techniques. This research enabled developing a design base to engineer recording element. The results on measuring parameters of the registering element are presented.

KW - scintillators

KW - wavelength-shifting fiber

KW - X-ray radiography

UR - http://www.scopus.com/inward/record.url?scp=85113177949&partnerID=8YFLogxK

U2 - 10.3103/S8756699021020023

DO - 10.3103/S8756699021020023

M3 - Article

AN - SCOPUS:85113177949

VL - 57

SP - 185

EP - 194

JO - Optoelectronics, Instrumentation and Data Processing

JF - Optoelectronics, Instrumentation and Data Processing

SN - 8756-6990

IS - 2

ER -