[en] Progress report on nuclear science and technology in China (Vol. 3) includes 57 articles which are communicated on the third national academic annual meeting of China Nuclear Society. There are 10 books totally. This is the seventh one, the content is about Nuclear electronics and nuclear detection technology sub-volume

[en] With the problems between sampling-rate and sampling-precision in DAQ (data acquisition) card, a dual-channel data acquisition system and a date-intervening system are designed, which is based on the development platform-LabVIEW, researching on synchronization of simultaneously dual-channel data acquisition system based on virtual instrument and discovering the best acquisition project. (authors)

[en] In order to filter Statistical fluctuation when the α spectrum is analyzed, α spectrum smoothing method based on EMD polynomial is proposed in this paper. The code of spectrum data processing is realized on Matlab according to the smooth method. And the results showed that spectrum data after smoothing has a better effect, which is helpful to analyze α spectrum accurately. (authors)

[en] Power MOSFET is the key device for the electric systems, and its stability is very important for the whole systems' working, especially in the radiation environment. In this Paper, the mechanism of the response of power MOSFET in high dose rate are represented, and the hardening methods are given. Experiment results show that the methods have effects. (authors)

[en] This paper introduces the function and principle of the remote intelligent terminal. It was designed on SmartARM 2200, uses uC/OS-II operating system and MiniGUI. And then,it gives a method to realize it. Introduces the work flow of remote intelligent terminal, and the function module of the system are analyzed in detail, and then the terminal of the principle has carried on the preliminary study. (authors)

[en] Aiming at the fault current FD-3025A geophysical prospecting instrument often appear in the process of actual application, is proposed to realize the geophysical data records by using SD card scheme, and gives the hardware interface design and software design of single-chip SD card and Atmgega128, and the porting of FatFs Module file system. (author)

[en] To conduct the measurement of neutron flux and the fission rate distribution at several position in assemblies, the micro plate fission chamber was designed and fabricated. Since the requirement of smaller volume and less structure material was taken into consideration, it is convinient, commercial and practical to use fission chamber to measure neutron flux in specific condition. In this paper, the structure of fission chamber and process of fabrication were introduced and performance test result was presented. The detection efficiency is 91.7%. (authors)

[en] After radiation detection of point sources with square-plane detectors was carried out, the data should be corrected by geometric factors before it was put in use. Therefore, the paper derived the formula for geometric factors subtended by a rectangle-plane detectors for point sources, and then analytical expressions subtend by square-plane detectors were deduced when the point sources was on the perpendicular line through the center of square-plane or its parallel. the deduced equations could be used to correct the detection data under such corresponding circumstances. (authors)

[en] In this paper, a silicon matrix detector is described and the results of the cosmic ray test are given. The silicon matrix is composed by the 180 silicon PIN detectors, which covers an area of (32 × 20) cm"2. The data of whole detectors is read out by the ASIC chips, and suppressed by an FPGA. In the test system, the trigger is given by two plastic scintillators, which are placed above and beneath the silicon matrix. The MIPs energy spectrum is shown in this paper. In further test, a small plastic scintillator is inserted to give a differential cosmic ray counting response. (authors)

[en] In this paper an economical and feasible integration solution is introduced for large-scale CCD imaging system. Based on fiber transmission and USB technology, a front control point is designed which can control 4 CCD camera. The control software only has to do small modification for new change. With the design of front control point, a CCD integrated system is established with higher integration and more flexibility. (authors)