ISSN:0094-243X    

DOI:10.1063/1.41154

出版商:AIP    

年代:1991

数据来源: AIP

摘要:

Insitusurvey of river salinity using a portable neutron‐gamma probe was conducted at northern Taiwan. The probe, consisting of a 40 &mgr;g282Cf neutron source and a HPGe detector, was mounted on board a fishing boat to survey the salinity at river delta. The variations of water salinity along the river were mapped according to the tidal cycle. Detecting range, radiation doses, characteristics of theinsituprompt gamma spectrum, and its potential application as a salinometer are discussed.

ISSN:0094-243X    

DOI:10.1063/1.41155

出版商:AIP    

年代:1991

数据来源: AIP

摘要:

The random photoexcitation process ofn‐capture &ggr;‐rays was used for studying the decay properties of the 8888 keV level in50Cr and a level at 7646 keV in53Cr. The &ggr; source was obtained from the Fe(n,&ggr;) reaction. The scattering cross section &sgr;sfrom the 8888‐keV level was measured in the range 297 K–10 K and the Debye temperature of metallic chromium was found to be &THgr;=510±20 K. The result is compared with that obtained by other methods.

ISSN:0094-243X    

DOI:10.1063/1.41156

出版商:AIP    

年代:1991

数据来源: AIP

ISSN:0094-243X    

DOI:10.1063/1.41157

出版商:AIP    

年代:1991

数据来源: AIP