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BNFA of CUAEPP
Agreement for technical service and maintenance
of specialized equipment between CUAEPP and THETA CONSULT
Ltd.
CUAEPP, taking into account the qualification and professional
experience of the formed by THETA CONSULT work groups, entrusts
the firm with technical service and maintenance of specialized
radiometric, dosimetric and spectrometric equipment, used
by the inspectors of BNFA.
CUAEPP gives THETA CONSULT the right to present the repaired
equipment to the authorized governmental institutions for
metrological tests for calibration.
Sofia 05.01.2002
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"Energoproekt" JSC
"Nuclear Energy"Department
Reference
About the work of THETA CONSULT
during the development of methods for metrological insurance
of the radiation control of Low Level Waste Processing
Plant (LLWPP), Kozloduy NPP.
For the needs of "Energoproekt" in the preparation
for work stage and commissioning of the LLWPP, Kozloduy
NPP, a work group from THETA CONSULT Ltd. developed "Instruction
for exploitation of the automated system for radiation
control in the LLWPP, Kozloduy NPP".
The instruction includes the subsystems for measuring
the dose rate and the aerosol activity in the LLWPP. The
instruction has been rated very high by the users.
15.05.2001
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KOZLODUY NPP
" PROCESSING PLANT FOR TREATMENT OF RADIOACTIVE
MATERIAL"
Reference
About the work done by THETA CONSULT
Ltd. concerning commissioning of a system for radiation
control in the Processing Plant for Treatment of Radioactive
Waste THETA CONSULT Ltd. while building the Factory
for Radioactive Waste Decontamination in 2000-2001 created
a system for radiation control in accordance with the
legislation requirements. Some of the important activities
achieved are:
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Translation in Bulgarian of the manuals and instructions
for the delivered dosimetric and radiometric equipment.
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Prestarting tests and check-up of the working
conditions of all parts of the system for radiation
control
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Control and participation in the installation of
the systems on site.
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Metrologyal check-up of all the equipment and
devices in accordance with the appropriate methods.
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Starting and setting of the software applications
for each device and the whole radiation control
system.
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Instructions for using the system and training
the personnel to work with it.
The mentioned activities were valued and accepted with
no corrections and remarks concerning quality in accordance
with the quality assurance system and at high scientific
level.
The management highly appreciated the qualification
and responsibility of THETA CONSULT Ltd. associates.
29.01.2001
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SOFIA UNIVERSITY "ST. KLIMENT
OHRIDSKI"
Science Research Center (SRC)
Reference
Concerning: The ability of THETA CONSULT
Ltd. to conduct researches, engineering, development
of systems and technologies and delivery of equipment
concerning the use of nuclear power for peaceful purposes.
The cooperation between the Scientific Research Department
at Sofia University "St. Kliment Ohridski"
and THETA CONSULT Ltd. started in March 1994. The participation
of prominent specialist from the faculty of Physics
and the faculty of Chemistry in the projects of the
firm allowed THETA CONSULT in short period of time to
become a specialized center for consulting, researches
and engineering in the field of nuclear technologies
and ionizing radiation.
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KOZLODUY NPP
Reference
In 1994 Kozloduy NPP assigns to THETA
CONSULT Ltd. to conduct consulting activities concerning
priority problems of the exploitation, modernization
and safety improvement of the power units with reactors
VVER-440 and VVER-1000 in accordance with the requirements
of the legislation in the Republic of Bulgaria and the
international experience.
The work of THETA CONSULT Ltd. was accepted by expert
and specialized councils of Kozloduy NPP as accomplished
at high technological and scientific level with high
quality and practical application.
14.01.1998
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ENEMONA HOLDING Mounting Enterprise
Recommendation
THETA CONSULT Ltd. is a specialized
company for researches and engineering in the field
of nuclear technologies (Physical, chemical and environmental
engineering) with highly professional management and
personnel, with practical experience in organizing and
executing complicated projects.
THETA CONSULT Ltd., developed the design project for
"Radiation Control in the Processing Plant for
Treatment of Radioactive Waste" at Kozloduy NPP
using modern technologies, equipment, materials, its
own methods for testing and setting up of the systems.
The executed task was at high quality, strict keeping
of the deadlines and the requirements of the Assignor,
which established THETA CONSULT Ltd., Sofia as a correct
and reliable partner.
24.11.2001
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Kozloduy NPP
Electricity Production Units 5, 6
Reference
About work done by THETA CONSULT Ltd.
on "Development and integration of methods for
calculation of the neutron fluens in the body of power
unit VVER-1000 at Kozloduy NPP".
In the statements of the technical councils for acceptance
of the different stages of the whole project is written
that the activities on the contract are done by work
group lead by research assistant Ivailo Hristoskov Ph.D.,
within the deadlines and at high quality levels, in
accordance with the requirements of the modern practice.
The methods developed are clearly formulated and in
details in the reports at the different stages. The
software provides easy work of the user and freedom
in defining the geometry and the content of the model.
The preciseness of the method was evaluated by a comparison
with experimental data and data from other calculations.
A full manual for the software was prepared
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KOZLODUY NPP
"SAFETY AND QUALITY" DEPARTMENT
Reference
For the activities done by THETA CONSULT
Ltd. on Contract: "Research on the issue "Hot Particles"
at Kozloduy NPP, development of methods for control,
deactivation and activities for preventing their spread".
The purpose of the project was to be offered practical
organizational and technical activities for identification
and control of the hot particles at the site of the
NPP. As a result of the studies made, the following
materials were developed and accepted:
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Methods for identifying and collecting of hot particles
from different polluted objects in NPP.
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Methods for "freezing" of hot particles in laboratory
conditions for studying their properties.
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Procedures for controlling of hot particles on
the territory of the industrial site of Kozloduy
NPP.
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NATIONAL ELECTRICITY COMPANY
TO
THETA CONSULT Ltd.
With this letter we inform you that your firm is qualified
for a potential subcontractor of "Westinghouse" and the
European Consortium Kozloduy on the program for modernization
of units 5 and 6 of Kozloduy NPP.
Executive Manager of NEC
Ivan Hinovski
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"NATIONAL CENTER FOR METROLOGY"
LABORATORY "PARAMETERS OF IONIZING RADIATION"
CONCERNING: Testing and approval of a type
of CI system "Eberline" of Kozloduy NPP.
The organization THETA CONSULT provided professional
and on time service in repair of equipment, presented
for testing by Kozloduy NPP and as a result, their approval
and signing in the State Register was expedited. Because
of the established good relationship, we recommend that
our technical cooperation in that area goes on in the
future.
14.03.2002
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KOZLODUY NPP
"SAFETY AND QUALITY" DEPARTMENT
Reference
For "service maintenance and repair of
equipment and apparatuses for radiation and dosimetry
control".
THETA CONSULT Ltd. possess modern and functional equipment
for executing repair and maintenance activities. The presence
of qualified personnel and service automobile is a very
important matter. That leads to a fast and adequate reaction
at every signal for problem anywhere.
The service engineers of the firm possess licenses from
the National Agency for Standardization and Metrology
for repair of equipment for measurement of ionizing radiation.
The spare parts and consumables used by THETA CONSULT
are always applied with the necessary certificates. Good
professional and friendly relationships are established
among the representatives of the company and the departments
they serve. In some occasions the associates of THETA
CONSULT provide nonprofit assistance and consulting at
the exploitation f the equipment they serve.
05.12.2003
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KOZLODUY NPP
"SAFETY AND QUALITY" DEPARTMENT
Reference
Repair of dosimetric system type 1M1/P"
The dosimetric system type 1M1/P, manufactured by the
Italian company TEMA/SINERGIE, is unique for our country.
It is used in the metrology laboratory for measurement
of ionizing radiation from 1996. The system is used for
calibration of dosimetric equipment by a dosed by time
radiation with a powerful source Cz-137 (with activity
equal to 207 Ci). In the beginning of 2003 a defect has
started to appear regularly. There was a problem, retarding,
in the coming back of the source which becomes unpredictable
and affects the validity of the calibration process.
The choice of THETA CONSULT to organize the unique repair
was based on the rich experience the company in developing
original solutions for nonconventional problems and the
necessary licenses and certificates it possess. In the
company work specialists in different areas - from service
engineers to scientists in field of nuclear physics, electronics,
radiation protection and ecology. A very precious asset
of the firm are its connections with scientific and industry
institutions related to the nuclear energy and the application
of the ionizing radiation in the economy.
An essential part of the work at THETA CONSULT is a preliminary
preparation for acquiring permission for repair from the
Agency for Nuclear Regulation (ANR). The company has developed
an Instruction containing all the necessary steps and
details for executing the activity and received an approval
from ANR with no remarks.
The probability for a radiation incident is minimized
by specially designed and manufactured from the personnel
means and exclusively precise preliminary preparation.
The quality of the repair confirms that THETA CONSULT
was the right choice for executing the unique task.
05.12.2003
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KOZLODUY NPP
"SAFETY AND QUALITY" DEPARTMENT
Reference
Bases and procedure for detection of constant
gas aerosol releases from the ventilation pipes of Kozloduy
NPP"
The purpose of the research is the development of procedure
for processing of data from measurements with radiometer
PKS 2-03 "Kalina". The application of the procedure must
lead to certain appraisal of the gas aerosol releases
for the statically valid as well as for the statically
invalid results. The project was finalized by a report
including three documents:
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"BASES AND PROCEDURE FOR DETECTION OF CONSTANT GAS
AEROSOL RELEASES FROM THE VENTILATION PIPES OF KOZLODUY
NPP"
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"ADDITION TO BASES AND PROCEDURE FOR DETECTION OF
NONSTOP GAS AEROSOL RELEASES FROM THE VENTILATION
PIPES OF KOZLODUY NPP"
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INSTRUCTION "PROCESSING OF DATA FROM MEASUREMENT
OF RELEASES OF RADIOACTIVE SUBSTANCEC FROM THE VENTILATION
PIPES OF KOZLODUY NPP"
The expert council at Kozloduy NPP has with no remarks
agreed on and accepted the research of THETA CONSULT.
It was highly evaluated for professionalism and proposed
to be introduced in practice in Kozloduy NPP".
05.12.2003
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KOZLODUY NPP
"SAFETY AND QUALITY" DEPARTMENT
Reference
Methods for evaluation of the protection
techniques in case of accident and of an instruction material
for practical training of the emergency personnel (Analysis
and Projects Group and Command-2)"
The aim of the research was on the base of the set technical
specification to develop a training material in the form
of a manual with examples for practical training at the
different emergency cites from the Analysis and Project
Group and Command-2. The manual should also include Methodical
variants for evaluation of the succession with recommendations
for protection techniques and in case of accident.
The work group of THETA CONSULT has professionally systemized
the materials and created a training material with volume
of 950 pages, spread into four separate manuals. A handbook
with questions and answers (68 books) and Methodical variants
for evaluation of the subsequences with 236 different
cases of possible accident situations are also included.
Positive in the research is that at every "Accident case"
on the base of the tree of the situation the possible
doses and their consequences are prognosticated and the
necessary protection techniques are also determined in
the form of colour tables and charts. The latter are especially
important as they allow determination of the doses and
their expected consequences at different distances from
the accident.
An useful training handbook was developed by the Analysis
and Project Group and Command-2 as well as the groups
action at the time of training.
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KOZLODUY NPP
"SAFETY AND QUALITY" DEPERTMENT
Reference
"Preparation of non active standards sets
for calibration of liquid scintillations spectrometers
in Monitoring of Environment Department at Kozloduy NPP"
For the needs of Monitoring of Environment Department
THETA CONSULT has developed 4 sets of liquid scintillation
non active standards and one additional set.
The following optimal ranges of interest have been determined
taking into account the given standards of the Monitoring
of Environment Department and the kind support of the
personnel at the department: 3Í and 90Sr/ 90Y for RackBeta
1219 and for LÊÂ-Guardian. At optimal: content 9ml H2O
+ 11ml LumaGel and tritium channel 5-130 RackBeta 1219
achieves detectable minimum 6,5 Bq/ I HTO for measurement
time - 4 hours. For LKB - Guardian the lowest detectable
minimum of 1,5Bq/ I HTO is achieved with UG LLT at optimal
content of the probe 10ml H2O + 10 ml UG LLT. Considering
the 9 mBq (probe for 10 hours measurement time) is achieved
with the available cocktail HS-3 at Monitoring of Environment
Department
Besides the order tasks and taking into account already
proved advantages of the consumption of RackBeta for 3Í
and 90Sr/ 90Y THETA CONSULT recommends purchasing of minimal
quality consumption UG LLT, UG AB and êþâåòè 22ml. As
advantages of the company are considered the recommendations
which THETA CONSULT has done for the improvement of the
quality of the measurements that makes the company a reliable
partner.
