A pulsed neutron source on the proton beam for the Moscow Meson Factory

Ryabov, Yu. V.; Grachev, M.I.; Kamanin, D. V.; Кузнецова, Е. А.; Kuznetsov, V.; Koptelov, É. A.; Libanova, O. N.; Litvin, V. S.; Matushko, V. N.; Razin, V. I.; Садыков, Р. А.; Соболевский, Н. М.; Fedchenko, Vera

doi:10.1134/s106378341005029x

Cited by 9 publications

(4 citation statements)

References 5 publications

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“…В этой связи, разработка математических методов, позволяющих не только реконструировать реальные спектры исследуемых веществ, но также повысить разрешающую способность спектрометров, является приоритетной задачей. С точки зрения математики, подобные задачи реконструкции относятся к классу некорректно поставленных задач [1], но в случае времяпролётных нейтронных спектрометров типа ТРОНС (Троицкий Нейтронный Спектрометр) ИЯИ РАН [2] и ему подобных, задача реконструкции и оптимизации может быть решена. В данной работе для математической реконструкции и оптимизации отклика спектрометра предлагается так называемый метод пошагового сдвига и рассматриваются его модификации.…”

Section: [вариант на русском языке] введениеunclassified

“…На Рисунке 1 представлены результаты двух серий независимых измерений на мишени из Ta-181 на установке ТРОНС [2]. По горизонтальной оси отложены номера временных каналов диагностического оборудования с разрешением 150 нс/канал, по вертикальной -количество событий в них (регистрация γ-квантов от реакций (n,γ) взаимодействия нейтронов с ядрами мишени с помощью датчика на основе NaI в горизонтальном канале с пролётной базой 50 м).…”

Section: постановка задачи реконструкцииunclassified

“…From the mathematical standpoint, such reconstruction problems belong to the class of incorrectly posed problems [1]. Nevertheless, the problem of reconstruction and optimization can be solved for neutron time-of-flight spectrometers, such as TRONS (Troitsk Neutron Spectrometer) at the INR [2].…”

Section: Introductionmentioning

confidence: 99%

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Reconstruction of TOF Spectrometer Experimental Data Using the Step-by-Step Shift Method

Novikov-Borodin¹

2018

Instrum Exp Tech

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A method for mathematical treatment is considered for experimental data from pulsed time-of-f light spectrometers, whose response to measurement-initiating pulses is represented by their convolution with the pulse response of the system. The proposed method of step-by-step shifting and its modifications are intended to correct the system response when the initiating pulse is distorted and also to reconstruct the response from a shorter pulse. Within certain physical constraints, this method is an alternative for technical methods associated with difficult scientific and technical problems that require considerable material costs. The inaccuracies of the reconstruction are estimated. An example of the reconstruction of experimental data from the neutron time-of-flight spectrometer at the INR is considered. The method is applicable to reconstruction of output data from any systems that are linear with respect to the input signals and are invariant to time shifts.

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Section: [вариант на русском языке] введениеunclassified

Section: постановка задачи реконструкцииunclassified

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Reconstruction of TOF Spectrometer Experimental Data Using the Step-by-Step Shift Method

Novikov-Borodin¹

2018

Instrum Exp Tech

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“…Presently this facility consists of a pulsed tungsten spallation source coupled to a 209 MeV proton LINAC [292]. Building the subcritical assembly would have required upgrading the accelerator energy to 500-600…”

Section: Another Project Aimed To Build a Subcritical Facility At The...mentioning

confidence: 99%

Evaluation of reactivity monitoring techniques at the Yalina – Booster subcritical facility

Palacios¹

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sionalism and hard work during the experiments, I would like to highlight their kindness in making us having a agreeable stay at Belarus. I wish to acknowledge as well the institutions that have provided nancial support for the work carried out during this PhD thesis: the EU 6th Framework program through IP-EUROTRANS Contract No. FI6W-CT2005-516520 and the ENRESA-CIEMAT agreement for the Transmutation Applied to High Level Radioactive Waste.Third, I want to thank as well all the colleagues from the Nuclear Innovation Unit and Nuclear Fission Division at CIEMAT during all these years, for all that I have learned with them and all the help they have provided at many instances, which would be endless to detail. In particular, special thanks to those that have revised the manuscript: Manuel Fernández-Ordóñez, Francisco Álvarez-Velarde and Juan Blázquez. I am also indebted to the administrative and services sta at CIEMAT for their usually invisible, albeit indispensable, assistance in many daily tasks. In particular, I would like to mention the Documentation Service for their help in nding many of the bibliographic references of this thesis.And nally, last but not least, I would like to acknowledge my family for all their support during all these years.

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Pitfalls of tungsten multileaf collimator in proton beam therapy

2011

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MLC is an efficient way for beam shaping and overall cost reduction device in proton therapy. However, based on this study, tungsten seems to be not an optimal material for MLC in proton beam therapy. Usage of tungsten MLC in clinic may create unnecessary risks associated with the secondary neutrons and induced radioactivity for patients and staff depending on the patient load. A careful selection of material for manufacturing of an optimal MLC for proton therapy is thus desired.

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A pulsed neutron source on the proton beam for the Moscow Meson Factory

Cited by 9 publications

References 5 publications

Reconstruction of TOF Spectrometer Experimental Data Using the Step-by-Step Shift Method

Reconstruction of TOF Spectrometer Experimental Data Using the Step-by-Step Shift Method

Evaluation of reactivity monitoring techniques at the Yalina – Booster subcritical facility

Pitfalls of tungsten multileaf collimator in proton beam therapy

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