Nuclear data structure in HyperLab databases
HyperLab databases contain nuclide, nuclear level, isomer, decay and radiation information.
For diagram legend, see section Database diagrams.
HyperLab's nuclear data tables are the following:
Contains basic information about a nuclide (isotope). Its primary key is the NUCLIDE_ID, which is composed from the mass number and proton number.
E.g. nuclide with NUCLIDE_ID=51124 is 124Sb.
Describes one nuclear level of a given nuclide. Contains level energy and lifetime information, and refers to its belonging nuclide.
E.g. level with NUCLEVEL_ID=511240002 is the E=10.86 keV level of 124Sb with HALFLIFE=93 sec.
Describes one specific isomer level (a nuclear level with practically significant life time). Contains a symbol for that isomer (e.g. “124Sb_m1”). Refers to the nuclear level which it belongs to. At most one isomer level may belong to a specific nuclide level.
E.g. ISOMER_ID=511241 refers to the isomer level of 93 sec mentioned before.
Describes one decay which starts from an isomer level. Also contains a descriptive name for that decay, e.g. “124SB IT DECAY (93 S)”. Zero, one or more decay may belong to a specific isomer.
E.g. DECAY_ID=5112410 is the isomer transition, and DECAY_ID=5112411 is the β- decay, both originating from the same 93 sec isomer of 124Sbm1.
Describes one radiation for a decay (or for another nuclear event). Contains energy and intensity information, and refers to its parent decay.
E.g. RADIATION_ID=”D05112411000001” is the 602.72 keV radiation of the 124Sbm1 isomer's β- decay.
This table contains radiation usage flags. One RadUsage record designates if a specific radiation may be used for a given task in HyperLab.
Usage types include “Energy calibration”, “Efficiency evaluation” etc. About their manipulation, see more details in Nuclear data library management.
Copyright © 1998-2007 by HyperLabs Software Budapest, Hungary