New portable gamma-camera for nuclear environment and its application at rehabilitation works

Ivanov, O. P.; Stepanov, V. E.; Volkov, V. L.; Volkovich, A. G.; Smirnov, Sergey; Danilovich, A. S.

doi:10.1109/nssmic.2004.1462537

Cited by 5 publications

(3 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The storage monolith was destroyed through upper apertures in the radiation shield using an excavator equipped with a hydraulic hammer. A gamma visor generating the signal displayed on the operator's monitor was used to detect canisters containing high-level waste in the destroyed monolith [1][2][3]. Removal of canisters containing high-level waste was a non-routine situation carried out by robots in conditions of high radiation fields (up to several dozens mSv/h).…”

Section: Liquidation Of the Encased High-level Waste Repositorymentioning

confidence: 99%

See 1 more Smart Citation

Remediation of the high-level radwaste repositories at Russian Research Center “Kurchatov Institute”

et al. 2009

View full text Add to dashboard Cite

Abstract. The paper presents peculiarities of organization and performance of activities on disposition of the high level activity radwaste repository located at the radwaste disposal site of the Russian Research Center "Kurchatov Institute" in Moscow. The process of the radwaste extraction from the repository is described in comparison with similar activities in other old repositories. Tools and equipment used for the radwaste extraction from the repository are listed. Conventional construction machines equipped with a hydraulic hammer or a clamshell were used for destruction of the concrete-encased radwaste mass and extraction of low-level radwaste. Intermediate-and high-level radwaste was extracted by remotely controlled robots operating inside the shielding structure. Gamma visor was used for detection of highlevel radwaste or fragments in the mass concrete being destroyed and for pointing remotely controlled robots accordingly. The paper describes peculiarities of radiation monitoring in the course of operations on disposition of the repository. For rapid detection of changes in radiation conditions in the working areas, there was used a gamma locator with on-line transmission of its data to a PC and their processing. The same measuring and extraction equipment were used for remediation of high-level radwaste repository at the Gas Plant complexes.

show abstract

Section: Liquidation Of the Encased High-level Waste Repositorymentioning

confidence: 99%

“…The above temporary repository of solid radwaste consists of 3 tanks faced with stainless steel. Each tank is sized 2900 × 2000 × 4935 from the inside; the total repository volume makes about 60 m 3 . Storage tanks were covered from above with steel-faced concrete protective lids.…”

Section: Removal Of High-level Waste From the Gas Plant Repositorymentioning

confidence: 99%

Remediation of the high-level radwaste repositories at Russian Research Center “Kurchatov Institute”

et al. 2009

View full text Add to dashboard Cite

show abstract

“…The gamma-ray emission imaging technique is a noninvasive Lagrangian technique that can provide continuous tracking of the radiotracer in space and time (Ziock 1995, Ivanov et al 2004. Although the technique was specifically developed to be used for medical tomography, increased interest from researchers and industrialists has led to the development of portable compact gamma imaging systems which can be applied to harsh industrial environments for process diagnosis and control (IAEA 2008).…”

Section: Introductionmentioning

confidence: 99%

Application of gamma emission imaging in mineral processing industry: case study of slurry transport in a wet laboratory ball mill

Makokha

Moys

Vangu

2011

Meas. Sci. Technol.

View full text Add to dashboard Cite

The gamma emission imaging technique has been effectively applied for determination of the slurry radial flow pattern and mixing profile within the ball charge in a wet laboratory ball mill. Aqueous technetium, Tc99m radioisotope that emits 140 keV photons with a short half-life of 6.02 h, was utilized as a flow follower while the glycerol–water mixture was used to mimic the motion of the actual slurry as found in full scale systems. Tests were conducted under two different slurry viscosity conditions for two mill speed levels. Both qualitative and quantitative information of the slurry radial flow and mixing behaviour inside the mill were obtained. The slurry flow and mixing behaviour displayed a marked dependence on the mill speed and slurry viscosity. The slurry mixing time in the ball charge varied directly with the slurry viscosity but inversely with the mill rotational speed.

show abstract

YSO coded aperture camera based on depth of interaction for location correction

Han,

Jiang,

Tang

et al. 2023

Radiat Detect Technol Methods

View full text Add to dashboard Cite

New portable gamma-camera for nuclear environment and its application at rehabilitation works

Cited by 5 publications

References 5 publications

Remediation of the high-level radwaste repositories at Russian Research Center “Kurchatov Institute”

Remediation of the high-level radwaste repositories at Russian Research Center “Kurchatov Institute”

Application of gamma emission imaging in mineral processing industry: case study of slurry transport in a wet laboratory ball mill

YSO coded aperture camera based on depth of interaction for location correction

Contact Info

Product

Resources

About