Development of novel functional dyes for the effective detection of -ray, JAERI's nuclear research promotion program, H12-007 (Contract research)

Tokita, Sumio*; Yoshida, Masaru

JAERI-Tech 2004-009, 37 Pages, 2004/03

JAERI-Tech-2004-009.pdf:3.12MB

no abstracts in English

Distribution of intensity of light emission around 175MeV Ar ion in nitrogen at density of water

Taguchi, Mitsumasa; Furukawa, Katsutoshi; Moriyama, Masahiro*; Ono, Shinichi*

JAERI-Review 99-025, TIARA Annual Report 1998, p.91 - 92, 1999/10

no abstracts in English

Optical fibers and their applications for radiation measurements

Kakuta, Tsunemi

Hoshasen, 24(1), p.41 - 48, 1998/00

http://ci.nii.ac.jp/naid/10029792597

no abstracts in English

Irradiation test of HAFM and tag gas samples at the standard neutron field of "YAYOI"

*

PNC TJ9602 96-004, 49 Pages, 1996/03

PNC-TJ9602-96-004.pdf:1.53MB

To check the accuracy of helium accumulation neutron fluence monitoring (HAFM) technique and the applicability of tag gas activation analysis to fast reactor failed fuel detection, these samples were irradiated at the standard neutron field of the fast neutron source reactor "YAYOI" (Nuclear Engineering Research Laboratory, University of Tokyo). The HAFM samples of 93% enriched B powder of 1 mg contained in a V capsule were set up in the reactor core center (Glory hole :Gy) and another samples including V encapsulated natural B powder of 10 mg, natural B chips and 96% enriched LiF thermoluminescence dosimeters were in the leakage neutron field from the reactor core (Fast column :FC). These neutron fields were monitored by the activation foils consisting of Al, Fe, Co, Ni, Cu, Ti, In, Au, U, Np etc., which were used to derive the neutron flux and spectrum. At the end of March in 1996, the irradiated neutron fluence in the energy more than 0.1Mev reached up to 1.110 n/cm at Gy and 5.410 n/cm at FC, respectively. Two kinds of tag gas samples, which are the mixed gases of isotipically adjusted Xe and Kr contained in stainless steel (SUS) capsules, were irradiated twice at Gy; one is up to 9kWh and the other 7kWh, and after the irradiation, -ray spectra were measured for each sample. Through comparison with the -ray spectrum from dummy capsule of no tag gas, the -ray peaks of Kr, Xe etc., which would be produced from tag gas activation, were able to be clearly identified.

None

PNC TJ1607 94-002, 60 Pages, 1994/03

PNC-TJ1607-94-002.pdf:2.52MB

no abstracts in English

Introduction of Nuclear Instrumentations and Radiation Measurements in Experimental Fast Reactor 「JOYO」

Odo, Toshihiro;

PNC TN9420 92-005, 83 Pages, 1992/04

PNC-TN9420-92-005.pdf:2.17MB

This report introduces the nuclear instrumentation system and major R&D (research and development) activities using radiation measurement techniques in Experimental Fast Reactor "JOYO". In the introduction of the nuclear instrumentation system, following items are described; (1)system function (2)roles as a reactor plant equipment (3)specifications and charactelistics of neutron detectors, (4)construction and layout of the system. For reactor dosimetry at various irradiation tests and surveillance tests, multi-foil method employed in "JOYO", neutron fluence evaluation using activation foils and HAFM (Helium Accumulation Fluence Monitor) under development are described briefly. The failed fuel detection system and some experimental equipments using radiation measurement techniques are also introduced here with main results obtained by a series of fuel failure simulation experiments. In addition, following R&Ds are picked up as some examples based on radiation measurement technology; (1)burn-up measurement of spent fuel subassembly (2)measurement and evaluation of radiation source distributions (radioactive corrosion products)

The Study of radiation chemistry with heavy ion beams

Namba, Hideki

Hoshasen To Sangyo, 0(55), p.23 - 26, 1992/00

no abstracts in English

None

Nuclear Safety Technology Center*

PNC TJ1545 91-002, 120 Pages, 1991/03

PNC-TJ1545-91-002.pdf:3.54MB

no abstracts in English

Microdosimetry and pulse radiolysis

Namba, Hideki

UTRCN-S-13, p.37 - 38, 1988/00

no abstracts in English

Microdosimetry; The new concept of the dosimetry

Numakunai, Takao; ;

JAERI 4047, 39 Pages, 1968/12

JAERI-4047.pdf:3.02MB

no abstracts in English