kaken radioactivity analyses

In Kaken there is one of the few radiation controlled area in the Ibaraki area. We can carry out the tests, researches and various radioactivity analyses involving radioactive isotopes.
Please contact us for more information by e-mail.

■	Radioactivity analysis on environmental samples, and migration tests River water, lake water, soil, food (vegetables, meat, fish, etc.)

■	Development of test and technology involving radioisotopes Behaviour test based on RI tracer, etc.

■	Surveys related to decommissioning processes Radioactive contamination analyses

■	Development of technology for the processing of radioactive wastes Dry decontamination, wet decontamination, etc.

■	Production and sale of radioactive sources ・α-sources calibration standards for ZNS scintillators ・Standard radiation sources for the calibration of Ge-semiconductor detectors ・Standards for liquid scintillation

Radiation controlled area plan

Authorization for the handling of nuclear fuel material,　 22文科科Number8548

Authorization for the handling of solutions containing radioisotopes,　
水使　Number 176

Authorization for the retailing of solutions containing radioisotopes, 　
水販　Number 31

Equipment in the radiation controlled area

■Ge-semiconductor detector (for γ-measurements)

■Low energy x-ray γ-ray detector　[LEPS]

■Low background gas-flow counter (for low-level β? measurements)

■NaI detector (for γ-measurements)

■GM detector (for β and γ measurements)

■ZnS detector (for α-measurements)

■Liquid scintillation analyser (for β-measurements)　[LSC]

■Surface barrier detector spectrometer (for α-measurements)　[SSB]

■GM Survey meters (for β and γ measurements)

■Ion Chamber Survey Meter (for β and γ measurements)

■Proportional Survey Meter (for α-measurements)

■Atomic absorption spectrophotometer 　[AA]

■Spectrophotometer (UV / VIS)

■X-ray diffractometer [XRD]　

■Inductively coupled plasma mass spectrometer [ICP-MS]

Authorised handling of nuclear fuel related nuclides and associated authorised quantity

Nuclide	Yearly authorised quantity	Chemical form
Natural uranium and its compounds	450g (as amount of U)	Metallic uranium Uranium oxide Uranyl nitrate Uranyl acetate
Depleted uranium and its compounds	300g (as amount of U)
Low-enriched uranium and its compounds	100g (as amount of U)
Thorium and its compounds	900g (as amount of Th)	Thorium nitrate
Plutonium and its compounds	300g (as amount of Pu)	Plutonium oxide Plutonium nitrate Plutonium chloride

For information about the not hermetically sealed radioisotopes types and quantities handled, click here (updated to April, 2015)