commercialization of radiation tolerant camera
TRANSCRIPT
KR0000123KAERI/RR-1952/98
Commercialization of RadiationTolerant Camera
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KAERI/RR-1952/98
Commercialization of RadiationTolerant Camera
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S U M M A R Y
I . Project Title
Commercialization of Radiation Tolerant Camera
II. Objectives and Necessities of the Project
In radiation environments, the personnel exposure should be reduced as low
as reasonably achievable. The best method of reducing personnel exposure is
separation of radiation environments and workers like remote handling tasks. In
the remote working, visual information is a major role to perform that kind of
works. The CCTV system, composed of camera and monitor, is a general
instrument to acquire an visual information. The camera using CCD image
sensor is generally used. But CCD sensors are weakened by radiation, CCD
sensors are limited to 104 rad total dose. So, radiation tolerant cameras are
needed to use radiation environments. Currently, radiation tolerant camera is
imported from foreign countries, and the technology of radiation tolerant cameras
were not developed by domestic researcher yet. Then, the price of radiation
tolerant camera is very expensive and the maintenance of the cameras could not
performed by our techniques. The technology of radiation tolerant camera that is
developed has many benefit. If we set the techniques and product of radiation
tolerant cameras, the price will be downed and the maintenance of the camera
IV -
will be easy. And we will join the world market of radiation tolerant cameras
with lower price than any other products.
DI. Scope and Contents of the Project
The works in radiation environment is aided by remote inspection system.
However, the commercial CCD camera is not useful to inspect because of its
weakness by radiation exposure. In order to view the condition of working area
clearly, radiation tolerant camera system must be used.
In this project, radiation tolerant camera which tolerates 106~108 rad total
dose is developed. In order to develope radiation tolerant camera, radiation effect
of camera components was examined and evaluated, and camera configuration
was studied. By the result of evaluation, the components were decided and
design was performed. Vidicon tube was selected to use by image sensor and
non-browning optics and camera driving circuit were applied. The controller
needed for CCTV camera system, lens, light, pan/tilt controller, was designed by
the concept of remote control. And two types of radiation tolerant camera were
fabricated consider to use in underwater environment or normal environment.
IV. Results of the Project
In this project, we developed radiation tolerant camera system that tolerated
10 —10 rad total dose for commercialization. Radiation characteristics of camera
- v -
evaluated and the electric circuits of the camera and the auxiliary devices, such
as lens, light, pan/tilt controller, were designed considering of remote control in
radiation environment. We developed two types of radiation tolerant cameras,
one is for underwater, the other is for normal environment.
V. Utilization of the Project Results
Currently, radiation tolerant camera is used in lots of application in nuclear
industry, such as reactor inspection, spent fuel inspection, RI facilities, etc. And
all of them are imported from foreign countries. The price of commercial
radiation tolerant cameras are high. The use of the camera was limited and the
maintenance of the system is not easy, because we had not related technology.
Developed techniques and products from this project will be applied to nuclear
industry, medical part and space. The developed radiation tolerant camera has
lower price than other commercial foreign products. By the increasement of
nuclear power plant in Asia including China, the need for radiation tolerant
camera may be increased. Also, the developed techniques will be used in space
and medical application. By using radiation tolerant camera, the safety and
certainty is increased in radiation industry.
- vi -
CONTENTS
Chapter 1 Introduction 1
Chapter 2 State of art 3
Section 1 State of art 3
1. Domestic state of art 3
2. Foreign state of art 3
7\. CCD Type radiation tolerant camera technology(R.J.Electrionics) 4
T-h CID type radiation tolerant camera 8
(1) Radiation tolerant camera of CID Technology Inc. 8
(2) MegaRad Cam of Emco Intertest Inc. 13
ty. Tube type radiation tolerant camera 15
(1) Diamond ST-5 15
(2) 1ST EVT 1250 • 15
(3) Radiation tolerant camera of REES Inc. 15
(7}) REES R93 16
(A) REES R975 19
(4) AEA Technology 21
(5) Industrial Video Systems, Inc. 22
(6) Bowtech 24
(7) Deep Ocean 26
(8) RSL(Rovtech Systems Ltd.) 28
(9) Scarab II 29
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(10) Q.I Nuclear TV camera 31
Section 2 State of art in research result 32
Chapter 3 Contents and results of research 33
Section 1 Contents of research 33
1. Radiation characteristics of camera component 33
a. The effect of radiation to vacumn tube 34
b. The effect of radiation to semiconductor 34
2. Configuration of radiation tolerant camera 39
a. Lens 40
b. Image sensor 43
c. Electronics 44
d. Light 48
(1) Incandescent lamp 49
(2) Halogen lamp 49
(3) Fluorecent lamp 49
(4) Mercury lamp 50
(5) Natrium lamp 50
(6) Kesenon lamp 51
e. Camera housing 52
4 . Pan/tilt 54
3. Analysis of camera image signal 54
a. Preparation and caution of instrument 54
(1) Shielding room 54
(2) Light 55
(3) Test pattern 55
b. Intrument of sensitivity 57
(1) Sensitivity of opto-electronics 57
- via-
(a) Instrument of input light quantity 57
(b) Output current of image tube • 58
(c) Sensitivity of vidicon • 58
(2) The characteristic of otpo-electric transform 59
c. Instrument of SN ration 59
(1) SN ration of image tube 59
(2) Observation of pulse by oscilloscope 59
Section 2 Result of research 61
1. Survey of required standard in field 61
2. Design and fabrication of radiatin tolerant camera housing and light 62
7}. Radiation tolerant camera housing for use in air 62
4 . Raidiation tolerant camera housing for use in underwater 66
4 . Light 70
3. Design and fabrication of the circuit of radiation tolerant camera 73
a. Design and fabrication of the circuit of radiation tolerant camera 73
(1) Design and fabrication of the circuit of one-bodied camera 73
(2) Remote modulazation of radiation tolerant camera 79
(7}) Design and fabrication of horizontal driving circuit 81
(•>-)-) Design and fabrication of head amplifer 86
(*}) Design and fabrication of video process and power supply 94
(£}) Design and fabrication of scan and high voltage circuit 97
(ur) Block digram of entire circuit 102
4. Design and fabrication of the controller of radiation tolerant camera 107
a. Design and fabrication of light control circuit 107
b. Design and fabrication of lens control circuit 113
c. Design and fabrication of pan/tilt circuit 119
- I X -
c. Power supply 126
5. Evaluation of radiation hardness 129
Chapter 4 Achievement and contribution of research project 131
Chapter 5 Application plan of developed results 131
Chapter 6 References 133
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(4) AEA Technology 21
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3. D.F.Barbe, "Charge-Coupled Devices," Springer-Verlag Berlin Heidelberg, 1980.
4. Richard Sharp, "Radiation Effects on Electrical and Electronic Equipment," BNES, 1994.
5. Henning Lind Olesen, "Radiation Effects on Electronic System," Plenum press, 1966.
6. Bernard Grob, " Basic Television and Video Systems," McGraw-Hill Book Compan
1975.
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14. G. Wyszecki and W.S.Stiles, Color Science, John Wiley & Sons, 1982.
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16. Henly W. Ott, Noise Reduction Techniques In Electronics Systems, A
Wiley-Interscience Publication, 1988.
17. <>}£<£, ^ M ^ H E 7^^^-s., ^ 4 3 1 ^ , 1998
18. Paul W. Levy, Radiation Effects in Optical Materials, SPIE Vol. 541, 1985.
- 1 3 4 -
INIS
KAERI/RR-1952/98
/
1999. 12. 10
p. 150 -§-( O ), &-§-( 71 21X29.7 Cm.
'98
CCTV
io6 ~10 8 rad
.a., CCD 4IIX\, CCTV,
BIBLIOGRAPHIC INFORMATION SHEET
Performing Org.
Report No.
Sponsoring Org.
Report No.
Stamdard
Report No.
IMS
Subject Code
KAERI/RR-1952/98
Title / Subtitle
Commercialization of Radiation Tolerant Camera
Project Managerand Department
Yongbum Lee(KAERI)
Researcher andDepartment
Youngsoo Choi, Sungku Kim, Jongmin Lee, Bunghun Cha,
Namho Lee (KAERI)Eiygyo Byun, Seunwook Yoo, Bumki Choi, Sungup Yoon,
Hyungun Kim, Jeonghun Sin, Sukil So (Samchang Co.)Publication
PlaceTaejon Publisher KAERI
Publication
Date1999. 12. 10
Page 150 p. 111. & Tab. Yes( O ), No ( ) Size 21X29.7 Cm.
Note
ClassifiedOpen( O ). Restricted(
Class DocumentReport Type Research Report
Sponsoring
Org.Contract No.
Abstract( 15-20 Lines)
In this project, radiation tolerant camera which tolerates 106~10° radtotal dose is developed. In order to develope radiation tolerant camera,radiation effect of camera components was examined and evaluated, andcamera configuration was studied. By the result of evaluation, thecomponents were decided and design was performed. Vidicon tube wasselected to use by image sensor and non-browning optics and cameradriving circuit were applied. The controller needed for CCTV camerasystem, lens, light, pan/tilt controller, was designed by the concept ofremote control. And two types of radiation tolerant camera were fabricatedconsider to use in underwater environment or normal environment.
Subject Keywords(About 10 words)
radiation tolerant camera, non-browning lens, vidicon tube,
CCD sensor, light, pan/tilt, CCTV
