Laboratory for Experimental Nuclear Physics
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National Research Nuclear University, "MEPhI"
Laboratory for Experimental Nuclear Physics

General information about the lab

Interdepartmental Laboratory for Experimental Nuclear Physics (LENP, http://enpl.mephi.ru/ ), created in 2011 thanks to a grant from the Government of the Russian Federation under Resolution No. 220 received by a leading international class scientist and MEPhI graduate, Professor Yuri Valentinovich Efremenko. LENP is located on the territory of NRNU MEPhI in 24 building.

Using government grants, the laboratory has developed a RED-100 installation based on a two- phase emission detector using liquid noble gas working medium to test a new technology for detection of reactor electron antineutrinos using an effect of the coherent elastic neutrino-nucleus scattering (CEνNS). In 2021-2022 the RED-100 detector has been exposed at the 4th unit of the Kalinin Nuclear Power Plant using 200 kg of liquid xenon as a working medium. The installation is currently undergoing modernization at the National Research Nuclear University MEPhI to repeat the experiment using liquid argon as a working medium.

LENP employees participate in experimental research of the international collaboration COHERENT at the Spallation Neutron Source accelerator complex. In a series of works carried out by this collaboration, in 2017 the CEνNS effect has been discovered on the Cs and I atomic nuclei. In 2020 the effect has been observed on Ar nuclei. Currently, studies of this phenomenon are going for various nuclei and various types of neutrinos with energies up to 50 MeV.

Laboratory staff are participating in the international experiment BM@N in Dubna. This experiment examines the production of elementary particles on nuclei using the high-intensity extraction beam of the NICA accelerator complex. In order to support the BM@N experiment, a specialized stand was constructed in the laboratory and a special technology was developed for testing gas electron multipliers to be used in experimental installations at BM@N to accurately determine the trajectories of high energy elementary particles. LENP employees take an active part in setting up and conducting a number of international experiments to search for double neutrinoless beta decay, including LEGEND and AMoRE. Laboratory staff are involved in the development of modeling the interaction of ionizing radiation with matter in frame of the international NEST collaboration. The LENP laboratory conducts applied research on the development, based on experimental methods of nuclear physics, of effective non-contact technologies for monitoring the condition of oil and gas pipelines.

On the basis of the original experimental equipment of LENP, a set of laboratory works has been created to teach students experimental methods of nuclear physics and elementary particle physics and to conduct laboratory work for senior students, masters of the Institute of Nuclear Physics and Technology. Research work and diploma projects, master's and PhD theses in current areas of experimental nuclear physics are carried out at the laboratory.

The laboratory is equipped with a modern scientific equipment, including:

• a complex of modern nuclear digital and analog electronics from leading companies in the world (CAEN, National Instruments, Hamamatsu);

• a complex of powerful personal computers with modern licensed software (Solid Works) for the development and construction of engineering equipment and nuclear physics detectors andinstallations;

• liquid nitrogen generators with a total production rate of 240 l/day to ensure the operation of cryogenic detectors;

• systems for cleaning and monitoring the state of noble gases for working with a wide range of modern gas, liquid and two-phase detectors of elementary particles;

• a “clean room” of ​​25 sq.m. area, designed for assembling various types of detectors in dust-free conditions. The laboratory staff includes about 20 highly qualified scientists with many years of experience in international experiments of fundamental importance in the field of particle physics (ATLAS, ALICE, STAR, BM@N), the search for dark matter in the Universe (CDMS, XENON, LUX, LZ), in applied research, including nuclear medicine, environmental monitoring, nuclear power safety control.

The laboratory employees are professors, associate professors and teachers of NRNU MEPhI, who teach undergraduate and graduate students of NRNU MEPhI nuclear physics and methods of nuclear physics experiments.

The main feature of research work at LENP is the novelty, richness and constant improvement of the modern instrument park, technical support of education process in NRNU MEPhI by original laboratory works for senior students by highly qualified personnel providing a flexibility in the formulation of new works focused on current problems of modern experimental nuclear physics and its applications.


Mailing address:
NNRU MEPHi, 115409,
Russia, Moscow,
Kashirskoe., 31.
Tel: +7 499 324-87-66
Email: aspelene@gmail.com