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Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

A NEW HIGH YIELDING WHEAT VARIETY DEVELOPED BY BOTH SOMACLONAL VARIATION AND CALLUS-IRRADIATION MUTATION

Immature embryo- derived calli from the wheat accession 1908 were irradiated with gamma rays at 2.58X 10-1C/kg. The frequency of somaclonal variation in the second generation (C2R2) went up to 25%, be...

Gao Mingwei (高明尉) Cheng Xiongying (成雄鹰), Liang Zhuqing (梁竹青) and Hu Tianci(胡天赐)

1993, 4 (1): 1

RESEARCH ON FADING CHARACTERISTICS OF ALANINE/ESR DOSIMETERS IN HIGH DOSE RANGE

The present work has dealt extensively and systematically with the fading characteristics of polystyrene—alanine dosimeters irradiated at different dose rates and total doses under various temperature...

Chen Lishu (陈丽姝), H.Tachibana, Y.Haruyama

1993, 4 (1): 4

INFLUENCE OF NUCLEAR RESONANCE 56Fe(p,p)56Fe ON K—SHELL IONIZATION PROBABILITY*

The K-shell ionization probability Pk was measured as a function of Ep across the strong resonance 56Fe(p,p)56Fe at 2.522 MeV and about 50% variation was observed. For a large ratio of the K-shell bin...

Fang Dufei (方渡飞) Guo Zhendi (郭箴第), Wang Yanser (王炎森), Xu Junshan (徐钧山), Yang Fujia (杨福家) and Zhang Chengteng (张成腾)

1993, 4 (1): 11

POSITRON LIFETIME DETERMINATION OF InP BY A HIGH RESOLUTION TIME SPECTROMETER

Positron lifetime was measured on crystalline indium phosphide by a high resolution time spectrometer. By trapping model positron lifetime in bulk InP was estimated at 231.5±1.5 ps which was carefully...

Shi Zhiqiang (史志强) Yu Weizhong (郁伟中) and Wu Lingyun (吴令芸)

1993, 4 (1): 16

INDUCTION OF MUTAGENIC EFFECT IN SOMATIC AND GERM CELLS BY ENRICHED URANIUM*

Enriched uranium(UO2F2) accumulated in organism could cause chromosome aberrations in somatic cells, its rates on bone marrow cells were elevated when the dose of 235UO2F2, was increased. Among the ty...

Zhu Shoupeng (朱寿彭), Hu Qiyue (胡启牙), Cao Genfa (曹根发) and Sun Baofu (孙保福)

1993, 4 (1): 20

STUDY OF THE CONDUCTION PHENOMENON IN THE SYSTEM Zn(1-x)FeCrO4Nix

In order to explore an anomalous conduction phenomenon in the system Zn(1-x)FeCrO4Nix which was investigated with Mossbauer spectra, X-rays diffraction, Infrared spectra and other methods. The results...

Zhou Yuan (周元), Hsia Yuanfu (夏元复), Zhang Shiyuan (张世远) and Chen Kunji (陈坤基)

1993, 4 (1): 28

CEREBRAL BLOOD FLOW AND METABOLISM EVALUATION IN COMATOSE PATIENTS BY DYNAMIC SPECT

Thirty patients in coma estate underwent dynamic SPECT with 133Xe, a validated technique for the quantitation of CBEF by SPECT,using a new brain dedicated tomograph: CERTO-96, CMRO2 was computed by mu...

Alessandro Giordano, Maria Lucia Calcagni, Francesco Della Corte, Mariano Alberto Pennisi, Guido Galli, Wang Fengqin (王凤), Zhao Huiyang (赵惠杨)

1993, 4 (1): 33

ITALIAN MONEY TESTED FOR FORGERY BY MOSSBAUER SPECTROSCOPY

Italian money has been investigated by Mossbauer spectroscopy. The results indicated that the spectrum of a 10000 lire bank-note consisted of three magnetic sextets and two quadrupole doublets, the sp...

LI Ortalli, G. Pedrazzi, Jiang Keyu (蒋可玉), Zhang Xiufang (张秀芳)

1993, 4 (1): 39

RADIATION DAMAGES OF PHOTODEVICE AND ITS SUBSTRATE MATERIAL

γ-radiation damage study of photodevice and its substrate shows that γ-radiation makes the light current, current amplification factor and respond time of devices decreased, dark current increased, bu...

Li Shiqing (李世清) and Zhang Nengli (张能立)

1993, 4 (1): 42

CALIBRATION METHOD IN ISOTOPIC CARBON ANALYSIS*

A very simple basic equation for the comparator technique is derived for the determination of 13C/12C ratio in biological samples by proton induced gamma-- ray emission. On the basis of this treatment...

Zhang Weicheng (张维成) and Li Liwu (李立武)

1993, 4 (1): 45

RADIOBROMINE LABELLING OF 3,4—DIHYDROXY — PHENYL—L—ALANINE AND DISTRIBUTION STUDY IN MOUSE BRAIN

The synthesis of 3, 4-dihydroxy- 6- bromo- phenyl- L- alanine (6- Br- L- dopa ), preparation of 3,4—dihydroxy-6-[77Br] bromo-phenyl-L-alanine(6-77Br-bromo-L-dopa) and its distribution study in mouse...

Hu Fang (胡 芳) and Li Yongjian (李永键)

1993, 4 (1): 51

PREPARATION AND CERTIFICATION OF THE HUMAN HAIR REFERENCE MATERIAL*

The preparation of the human hair reference material and the steps taken to confirm its homogeneity and stability as well as its certification are described. Certified values for 17 elements, which a...

Cheng Yuandi (成源棣), Wang Xuepeng (汪学朋), Qian Yine(钱银娥), Zhang Yuanxun (张元勋) and Tan Mingguang (谈明光)

1993, 4 (1): 56

RADIATION OR WAXING EFFECT ON SHELF LIFE OF GUAVA FRUIT

Red and white guavas were treated with wax emulsion or irradiation (0.25— 2.0 kGy) and kept for 12 days at room temperature. Initiation of rot attack occurred after 3 days which increased significantl...

Mohammad Wahid, Mohammad Naseem Khan, Bukhtiar Hussain and Abdus Sattar

1993, 4 (1): 61

 Nuclear Science and Techniques

ISSN: 1001-8042     eISSN: 2210-3147

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