I. Introduction to the Subject

   The nuclear science and technology program of Lanzhou University was founded in 1958, and its teachers are mainly assigned to related majors of Peking University, Nanjing University and other cooperation universities. In the early and mid-1960s, outstanding graduates from key universities and some returnees who studied in the former Soviet Union, the United Kingdom and Japan joined in succession, and the two majors of nuclear physics and radiochemistry in Nankai University were relocated as a whole. This major has long been engaged in low-energy and high-current accelerator technology and application research, ion beam physics and its application research in material science, industrial nuclear instrumentation and electronic control technology research and environmental radiochemistry research. Have developed by our country only a yield of 1012 neutrons/second order of magnitude of fast neutron source, there are 2 x1. 7 serial mv electrostatic accelerator, 50 kv current implanter, the domestic first-class low background laboratory, nuclear electronics laboratory, electrical and electronics laboratory, nuclear detection laboratory, radiation protection and nuclear technology laboratory laboratories, chemical and nuclear radiation chemistry laboratory. After many years of construction, the overall level of this discipline has been in the forefront of similar disciplines in China.
    In 2001, the ministry of education approved the establishment of the 'research center of neutron application technology engineering of the ministry of education' in this discipline; In 2002, it established the 'sub-center of the cooperative research center of nuclear science and technology online of the ministry of education'. In 2005, 'engineering research center of neutron application technology of ministry of education' passed the acceptance inspection; A provincial-level talent training base for nuclear science and technology was added in 2006.
    Nuclear science and technology, as a comprehensive and highly advanced subject with great practical significance and theoretical development prospect, is composed of basic science, technical science and engineering science. Its research fields mainly include nuclear energy science and engineering, nuclear fuel cycle and materials, nuclear technology and application, radiation protection and environmental protection.
    With the popularization and development of nuclear science and technology knowledge, the application of nuclear science and technology has been paid more and more attention by people. Nuclear science and technology has been applied in many fields, such as energy, environment, industry, agriculture, national defense, medical and health care and scientific research, and great social and economic benefits have been achieved.
    One of the most important research and application fields of this discipline is nuclear energy. Nuclear energy is an indispensable part of the world energy structure, especially the utilization of fission energy has been widely developed, and is recognized as the only alternative to fossil energy at present, which is efficient, clean and economic. The development of nuclear energy has made great progress in the world and plays an increasingly important role in China's national economy.
    This discipline is closely related to the construction of ecological civilization. Environmental protection is a basic national policy of our country, in terms of environmental protection, this subject mainly research of radiation protection, nuclear waste and hazardous waste treatment and disposal, waste recycling, radioactive substances and poisonous and harmful substances in surface water, groundwater, and the migration and transformation rule of atmospheric environment, environmental impact assessment of nuclear waste and hazardous waste management and safety analysis of nuclear technology application in environmental science and engineering, etc. Therefore, this subject is of great significance to protect human health and human living environment.
    Nuclear science and technology not only influence the current world pattern, but also are closely related to our daily life. From the achievement of two bombs and one boat to the rapid development of nuclear power, from shenzhou to chang 'e, from the exploration of life to the realization of new varieties, from the inspection of industrial products to the realization of industrial automation, nuclear science and technology go hand in hand. Energy is the biggest problem in the world today. Although political problems often impede the development of nuclear energy, we all know that the only viable way to solve the energy crisis is nuclear energy, and the safe and effective use of fission nuclear energy and the research and development of fusion nuclear energy as soon as possible are the focus of this discipline.
    From the perspective of the strategic layout of the national nuclear industry, the majority of research institutions and production institutions are concentrated in the west, especially Gansu province, where this discipline is located. It is a veritable big nuclear province, which covers all links of the complete nuclear industry system except nuclear power stations, and is the province with the most complete nuclear facilities in China. The backbone of nuclear-related research institutions and large state-owned enterprises in gansu province mainly comes from their own disciplines. Therefore, the development of this major has advantaged geographical advantages and human resources advantages, and can give play to the advantages of science and technology to serve the local economic construction and transport high-quality talents with professional counterparts.

II. Subject Direction

     In response to the needs of the state, especially the needs of national defense, the department has carried out a great deal of scientific research and has made remarkable achievements. Most of the research achievements have reached the domestic advanced level and some have reached the international advanced level, forming distinct features and advantages. In recent years, according to the frontier of the discipline and the national strategic needs, the discipline points have further condensed the research direction, highlighted the characteristics, and consolidated their advantages in the following aspects.
     1. Fusion Neutronics: focus on the development of fast neutron generator equipment, and use such equipment to carry out research on neutron physics and technical application. We have successively developed several neutron generators with the output of 1010, 1011 and 1012 neutron/SEC for our brother units and our own research stations. Among them, the 3.3x1012 neutron/second strong current neutron generator developed and installed in this discipline is the only fast neutron generator in China reaching the order of 1012 neutron/second, ranking first in China and at the advanced level in the world. It is designated by the national defense science and industry bureau as one of the simulated neutron sources for radiation strengthening of China's strategic weapons. Completed the national '863 plan' 'fusion - fission hybrid reactor structure material neutron irradiation damage'; Completed two pre-research projects of radiation resistance reinforcement of the commission of science, technology and industry of national defense and simulation experiments of radiation resistance reinforcement of more than 2000 semiconductor components; Completed the 'measurement of fast neutron nuclear data in more than 70 channels and hundreds of channels' of China nuclear data center; The sino-french cooperation project 'fast neutron irradiation breeding' was carried out.
    The current direction based on the neutron application technology engineering center '' the ministry of education, ministry of education' 211 project 'project, national foundation of natural science foundation of scientific instruments, special support, is developing a more strong flow neutron generator, the machine design and the key components of processing has been basically completed, is expected to two years to complete the assembly and debugging. At the same time, it is undertaking the research and development of on-line neutron activation analysis system in industrial field and the scientific research supported by some national funds and provincial and ministerial funds.
    2. Rays and Matter Interaction: on the one which is introduced by 2 x 1.7 MV tandem accelerator, continuous full band wavelength tunable femtosecond lasers, high power density and the neighboring units - the institute of modern physics, Chinese academy of sciences of the ECR in the heavy ion source and high energy heavy ion accelerator, conducted can load heavy charged ions, low-energy ion high charge, low energy ion, and study the interaction between laser beam and material. Especially in 'based on atomic shell electron capture process', 'electronic - negative ion collision caused negative ion multiple ionization process', 'proton in light back scattering cross section measurement of nuclear resonance', 'low energy ion high charge and surface interaction' and 'some combination of energy loss rate measurement', 'environmental effect of low-energy nuclear reactions', 'laser plasma', 'strong laser pulse' and other aspects of research, a group of leading in the domestic achievements.
    3. Nuclear Power Electronics and Nuclear Instruments: developed new nuclear scales, material level meters, automatic liquid level tracking and measuring instruments and other nuclear instruments for factories and mining enterprises. These new nuclear instruments overcome the main shortcomings of similar instruments in the past and are welcomed by users. Among them, the on-line neutron water measurement system for dynamic materials has achieved considerable benefits and won praise and rewards from users after being put into use by jinchuan nonferrous metal company, jiuquan iron and steel company and other large gold processing enterprises. At the same time, it has also developed low-energy heavy ion injection device, high-current double-plasma ion source, multi-purpose small accelerator, neutron moisture meter, neutron activation analyzer, high-current high-voltage power supply, special high-voltage pulse power supply, space single-particle effect simulation device, aerospace optical communication simulation device, etc.
    4. Nuclear Environment: mainly studies the adsorption, migration and storage behaviors of radionuclides in environmental media, as well as chemical problems related to nuclear waste treatment and disposal. In recent years to carry out the 'radioactive nuclide adsorption, desorption and migration study in environmental medium', 'chemical enrichment of stable isotopes,' 'compression method of ion exchange separation of rare earth elements', 'grade reduction - ion exchange process to extract fluorescent europium oxide' and so on many scientific research project by the peer attention both at home and abroad, the research level is in the leading position in domestic, also influential in the international academic circles. A number of applied research results completed for the enterprise has brought huge economic benefits and good social benefits. 'Research on anti-scaling and anti-corrosion technology of evaporating tank heating pipe of beet sugar factory' project solves the problem of evaporating tank corrosion and scaling for sugar factories in gansu, xinjiang, Inner Mongolia and other places, and saves millions of yuan for each enterprise every year. The technology has been applied for the national patent and won the second prize of Gansu province scientific and technological progress. 'radioactive nuclide analysis', 'alpha sediment than alpha research', 'duct decontamination method research' and 'small space decontamination tools developed' and so on many nuclear reactor decommissioning projects, is a pioneering work at home, the results by original costind, the nuclear group of companies in China and other relevant departments attach great importance to the attention of the domestic and foreign counterparts and. At present, the 'project of engineering treatment of alpha silt and rust non-alpha' undertaken by the commission of science, technology and industry of national defense has entered the cold test stage. At present, this direction is undertaking two key military research projects related to high-level radioactive waste disposal as well as several fund projects.

III. Main Construction Contents

    (I) Academic Team
    Through the hard and unremitting efforts of several generations, this discipline has retained a teaching, scientific research and technological development team with obvious characteristics and advantages in the research direction in the field of nuclear science and technology, reasonable age and professional title structure, innovation and international competitiveness, dedication, hard-working, unity and cooperation. At present, there are 51 full-time teachers, 8 professors, 24 associate professors and 48 teachers with doctoral degrees. In recent five years add 2 new century excellent talents, the ministry of education of gansu province 3 talents, baosteel 1 prize laureate awards outstanding teachers, 1 gardener prize winner, Gansu province, gansu province prize winner of young university teachers become 3 people, 1 virtue pacesetter winner in gansu province, Lanzhou University ethics pacesetter winner of 2 people.
    (2) Personnel Training
    In 2012, the program of postgraduate training was revised to make the curriculum more close to the forefront of the discipline. At the same time, the national demand and local economic and social development were taken into account. The training links were more standardized, the training quality evaluation and supervision and guarantee mechanism were improved, and the requirements for dissertation evaluation and defense were more scientific. While meeting the basic requirements of postgraduate training, the training characteristics of nuclear science and technology discipline are highlighted. The majority of graduate students in nuclear science and technology are employed in relevant domestic institutions of higher learning and research institutes. They are engaged in teaching, scientific research and technological development. Some graduate students are employed in environmental protection, quality inspection and technical supervision, nuclear power construction and operation units. In recent years, three doctoral students have won the academic new talent award for doctoral students of the ministry of education, one graduate student has won the award of seeking truth, three graduate students have won the gong jian third scholarship, and 17 graduate students have won the national scholarship.
    (3) Scientific Research
    In the past five years, the department has undertaken 40 national projects, including 2 major or key projects, and 77 other provincial-ministerial fund projects and horizontal development projects, with a total scientific research fund of 42.79 million yuan. Published more than 300 high-quality academic papers, 207 of which were included in SCI/EI/ISTP; Obtained 1 patent authorization for invention. In particular, it is worth mentioning that in 2013, it was funded by the national natural science foundation of China (NSFC) with 8.5 million yuan for the development of high-yielding single-energy fast neutron generator. As the first participating unit, it has jointly applied for more than 50 million yuan of funding for major instruments of the ministry of science and technology, and the discipline undertakes the task of miniaturization of neutron generator. Initially established the most advanced PET and SPECT medical imaging laboratory in domestic universities; It has undertaken the simulation task of the *** sensor of chang 'e lunar exploration project, and the completed quality has been tested by the *** soft landing on December 14, 2013.
    (4) Academic Exchanges
    This program attaches great importance to international exchange and cooperation. In recent years, through the national construction of high-level public postgraduate programs and the good practical cooperation between the program and foreign research institutions, dozens of graduate students have engaged in exchange and learning activities in foreign institutions of higher learning, scientific research institutes or laboratories. In the past five years, the department has participated in 85 international academic conferences and more than 60 academic reports. Fifteen students and teachers have gone abroad for scientific research cooperation for more than one year. In addition, we are one in 2009 held the sixth global Chinese physics conference in 625 participants (), international hadron physics conference number 35 participants () the two important international academic conference, the national conference on chemical and nuclear radiation environment, the super-heavy nuclei synthesis and properties of conference, for the majority of teachers and students provides extensive academic exchanges, the chance to get to know a frontier dynamic and platform, to achieve the desired effect. In 2013, more than 20 well-known experts and scholars from home and abroad were invited to visit and communicate with us and give academic reports. Teachers of our school made four special invited reports at international academic conferences.
    (5) Construction Planning and Construction of Basic Conditions
     We are one of the construction of the overall objectives are: to build one into a nuclear science and technology in China centre of high-level personnel training, scientific research and technology development center, as nuclear science research in China, the nuclear industry, defense industry and nuclear technology development and application of conveying a large number of high-quality talents, promote the development of nuclear research and technical application. In the technology and application direction of high-current low-energy accelerator, a 6-by-1012 neutron/SEC high-current neutron generator was built. In the ion beam technology and its application in life science, improve the research platform of low-energy ion beam and laser nuclear physics; In the direction of environmental radiochemistry, conduct research on nuclear facility safety and radiation environmental protection, and establish a joint laboratory with the enterprise; In the industrial and instrumentation and electronic control technology direction, the establishment of nuclear instrumentation research and development base, in the performance improvement of standard instrumentation and non-standard equipment research and development progress, to provide users with satisfactory equipment.
    (6) Serving the Economic Construction of Gansu Province
We should make use of the advantages of human resources, accelerator technology, nuclear detection technology, nuclear power electronics and control technology to serve the social and economic development of the country, as well as the technical progress and economic development of our province. A large number of ITER materials, military nuclear materials and biological samples provided by scientific research institutions of our province have been irradiated by the neutron beam of the strong current neutron generator. To select and breed a new wheat variety and popularize it widely in our province; Develop neutron moisture meter for jiuquan iron and steel group and jinchuan company; The simulation device of single particle effect and communication device of space radiation environment were developed for Harbin Institute of Technology. Developed X-ray thickness gauge for an enterprise in Shanghai; Developed a set of -350kv high-voltage power supply for neutron generator for China atomic energy research institute; Develop special high voltage power supply for Chinese academy of engineering physics. Develop a wireless emission radiation field dose monitoring prototype, entrust local enterprises to develop and promote. It has undertaken part of the scientific research tasks of China's pilot project of spent fuel reprocessing (located in our province), part of the scientific research tasks of decommissioned nuclear facilities in our province, and assisted gansu nuclear security bureau to train nuclear and radiation personnel for more than 10 times.