质子诱发瞬发 γ 射线测定 C 和 N 同位素丰度

观测了低能质子在含Ｃ和Ｎ样品上引起的共振核反应。通过测定几种已知丰度富集物的γ射线产额进行体系刻度，可快速、准确地求出待测样品的丰度。测量范围：１３Ｃ为１％—９０％，１５Ｎ为０．０５％—５％。The low energy resonance reaction on the samples containing C and N were studied experimentally.The system was calibrated by measuring the γ rays yield from the reaction as a function of known enrichment, using the experimentally determined calibration curve unknown specimens can be analysed. The measurable isotopic contents the range of 1%—90% for 13 C and 0 05%—5% for 15 N,respectively.国家自然科学基

超薄型外延硅dE／dX探测器及其在核实验中的应用

本文介绍了厚度为５．２、６、７和１０μｍ，有效面积为２８～１５４ｍｍ２的超薄型外延硅ｄＥ／ｄＸ探测器（对于８．７８ＭｅＶａ粒子的能损ΔＫ的分辨为４８～７６ｋｅＶ）及其研制工艺、主要用途、测试结果及在核物理实验中的应用．The epitaxial st-dE/dX surface barrier detectors with an active area of 28～154mm2 and thickness of 5. 2～10μm have been developed. This kind of detector can be used for measuring α-particle, proton with low energy and for distinguishing particles, 0. 78MeV 20Na β-delayed low energy α-decay

外延硅dE／dX探测器的研制

本文介绍了厚度为５．２～６．０、１０～１３、１９μｍ，有效面积为２８～１５４ｍｍ￣２的外延硅ｄＦ／ｄＸ探测器的研制工艺，主要用途、测试结果（对９．８７Ｍｅｖα粒子的能损ＡＥ的分辨为５６～１２８ｋｅｖ）和在核物理实验中的应用

金刚石膜高能粒子探测器

评述了金刚石膜探测器的优缺点，简要地介绍了由化学气相沉积的多晶金刚石膜所制成的辐射探测器，以及利用此探测器对α粒子进行测量的初步结果。The advantages and disadvantages of the diamond detectors are reviewed. Prototype diamond film radiation detectors have been developed in our laboratory. The principle and manufacture of the detectors are summarized. The preliminary test results of the detectors under α particles radiation are given also

4π硅球探测器研制的初步结果

简要介绍了4π硅球探测器的设计结构、探测器的制备工艺及性能