Experimental study on anomalous neutron production in deuterium/solid system

Conference · Fri May 10 00:00:00 EDT 1991 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:7043073

Jianyu, He; Rongbao, Zhu; Xiaozhong, Wang; Feng, Lu; Longjun, Luo; Hengjun, Liu; Jincai, Jiang; Baosheng, Tian; Guoan, Chen; Yuan, Yuan; Baiting, Dong; Liucheng, Yang; Shengzhong, Qiao; Guoan, Yi; Hua, Guo; Dazhao, Ding ^[1]; Menlove, H O ^[2]

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1. China Institute of Atomic Energy, P.O. Box 275-26, Beijing (China)
2. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)

A series of experiments on both D{sub 2}O electrolysis and thermal cycle of deuterium absorbed Ti Turnings has been designed to examine the anomalous phenomena in Deuterium/Solid System. A neutron detector containing 16 BF{sub 3} tubes with a detection limit of 0.38 n/s for two hour counting was used for electrolysis experiments. No neutron counting rate statistically higher than detection limit was observed from Fleischmann Pons type experiments. An HLNCC neutron detector equipped with 18 {sup 3}He tubes and a JSR-11 shift register unit with a detection limit of 0.20 n/s for a two hour run was employed to study the neutron signals in D{sub 2} gas experiments. Different material pretreatments were selected to review the changes in frequency and size of the neutron burst production. Experiment sequence was deliberately designed to distinguish the neutron burst from fake signals, e.g. electronic noise pickup, the cosmic rays and other sources of environmental background. Ten batches of dry fusion samples were tested, among them, seven batches with neutron burst signals occurred roughly at the temperature from {minus}100 degree centigrade to near room temperature. In the first four runs of a typical sample batch, seven neutron bursts were observed with neutron numbers from 15 to 482, which are 3 and 75 times, respectively, higher than the uncertainty of background. However, no bursts happened for H{sub 2} dummy samples running in-between and afterwards and for sample batch after certain runs.

• OSTI ID: 7043073
• Report Number(s): CONF-9010260-; CODEN: APCPC
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Vol. 228:1; Conference: 1990 photovoltaic module reliability workshop, Denver, CO (United States), 22-25 Oct 1990; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
COLD FUSION
NEUTRON EMISSION
BACKGROUND NOISE
COSMIC RADIATION
ELECTROLYSIS
GAMMA RADIATION
HEAVY WATER
NEUTRON DETECTION
TEMPERATURE DEPENDENCE
TITANIUM
DETECTION
ELECTROMAGNETIC RADIATION
ELEMENTS
EMISSION
HYDROGEN COMPOUNDS
IONIZING RADIATIONS
LYSIS
METALS
NOISE
NUCLEAR REACTIONS
OXYGEN COMPOUNDS
RADIATION DETECTION
RADIATIONS
TRANSITION ELEMENTS
WATER
700360* - Fusion Reactions- (1992-)
440103 - Radiation Instrumentation- Nuclear Spectroscopic Instrumentation