Download DENDROXRAY Closed System User Manual1.02a.02a

DENDROXRAY 2
Closed System
Instruction Manual V1.02
Gentle x-rays for better contrast
Dendrochronology
Forest Ecology
Wood Biology
Wood Technology
Climatology
Sedimentology
Zoology
Photography
WALESCH Electronic GmbH, Gestenrietstr. 2, CH-8307, Switzerland, +41 52 343 80 80 FAX +41 52 343 15 00
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 2
ATTENTION! IMPORTANT WARNING !!!
You have purchased a high quality, high precision
instrument. Prior to putting it into operation, you must
thoroughly read Instructions of Use and warnings. Neither
the manufacturer nor the dealer can assume any liability for
the incorrect use of the instrument. Please contact your
dealer immediately, if you should not clearly understand the
instruction for use.
INITIAL INSPECTION
Initial inspection and preliminary checkout procedures are recommended. For safe operation, please
follow the step-by-step procedures described in Chapter 3 and 4
Inspect the package exterior for evidence of damage due to handling in transit. Notify the carrier and
WALESCH Electronic GmbH immediately if damage is evident. Do not destroy or remove any of the
packing material used in a damaged shipment.
After unpacking, inspect the material for visible damage.
Table of contents........................................................................................... Page
1-Preliminary...................................................................................................... 3-4
DENDROXRAY 2, for use in an irradiation room ..................................................................3
DENDROXRAY 2 + X-RAY CABINET, for use without an irradiation room.......................4
2-DENDROXRAY 2 description ........................................................................... 5
Control Panel description....................................................................................................5
3-Installation Instructions ................................................................................ 6-8
Installation of the warning signal lamp ..............................................................................6
Installation of the Cooling ...................................................................................................7
Proper Grounding ................................................................................................................7
Connect the water pipes......................................................................................................7
4-Put into operation ........................................................................................ 9-12
Radiation curve ..................................................................................................................12
Radiation time ....................................................................................................................12
5-Technical data ................................................................................................. 13
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 3
1-Preliminary
DENDROXRAY 2, for use in an irradiation room
The DENDROXRAY 2 system is designed for the use in an irradiation room.
With the exception of a shielding around the X-ray tube for the rays that not belongs to the user beam,
the DENDROXRAY 2 system has no further shielding against the X rays.
The X-ray tube of the DENDROXRAY 2 system has to be built-in into an irradiation room, which
protects the operators against all X rays coming out from the X-ray tube.
In addition, the irradiation room must also be implemented as a dark room so that the films and the
samples can be prepared and radiographed.
The maximum dose rate of the X-ray in the case of 20kV / 25mA and a distance of 2m is 45 Sievert
per hour.
In Switzerland, an approval is necessarily for X-ray system.
Also training is necessary for the operator.
In the preparation dark room, the humidity of the air and the temperature has to be held constant. The
temperature should not exceed 25°C and must not be lower than 3°C. An air-conditioned room is
recommended.
The cooling of the X-ray tube is a closed system. No additional water supply is required.
This is an example of irradiation room:
X-ray
Control unit
X-ray
Generator
X-ray
cooling
unit
Warning
signal
X-rayTube
Main
Air
conditioned
X-ray dark room
Irradiation room
Warning
signal Door
switch
Darkroom for the preparation of the wood samples
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 4
DENDROXRAY 2 + X-RAY CABINET, for use without an irradiation room
The X-ray tube of the DENDROXRAY 2 system is built-in into a cabinet, which protect the operators
against all X-rays coming out from the X-ray tube (fully protected device).
Fully protected device:
In accordance with the Swiss Regulations for Protection against Radiation, the local dose rate at a
distance of 10 cm from the surface of the case must not exceed the value of 1 µ Sievert per hour.
This equipment has the advantage (in Switzerland) that no approval is necessary for the operation.
The equipment has to stand in the preparation dark room.
In the preparation dark room, the humidity of the air and the temperature has to be held constant. The
temperature should not exceed 25°C and must not be lower than 3°C. An air-conditioned room is
recommended.
Since every device is set up individually for each customer, wishes with respect to design can also be
considered, for example cabinet size. The costs of the cabinet are calculated individually on the
requirement of each customer.
X-ray
Generator
Air
conditioned
X-ray
cooling
unit
X-rayTube
Main
X-ray cabinet
X-ray
Control unit
Door
switch
Warning
signal
Darkroom for the preparation of the wood samples
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 5
2-DENDROXRAY 2 Closed System description
DENDROXRAY 2 is a compact designed apparatus for the gentle X-raying of wood samples.
X-ray unit and Cooling can easy be placed to your requirement.
DENDROXRAY 2 system includes:
- X-ray unit with built-in Control Panel, High voltage power supply and
X-ray tube Comet CXR-105
- 10m flexible water pipe
- 1 external warning signal lamp with 5m cable
- Closed cooling water circuit.
Control Panel description
Display Tube
Voltage kV
Display Tube
Current mA
Set Tube Current
0-24mA
Set Tube
Voltage
0 to 20 kV
X-ray ON
X-ray ON Light
Power ON
X-ray OFF
Tube operating
hours counter
Temperature OK
Power OFF
Cooling quantity OK
Door handle
closed
Main Switch /
Emergency
Power OFF
X-ray Timer
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 6
3-Installation Instructions
The installation of the DENDROXRAY 2 does only be made by a high-qualified person.
It is necessary to read carefully the Tube Assembly Documentation from Comet CXR-5 before using
DENDROXRAY 2. Never touch the Beryllium Window of the tube insert.
It is necessary to read carefully the Manual of the cooling unit WL1000 before using DENDROXRAY 2.
It is necessary to read carefully this instruction manual
It is necessary to read carefully the safety instructions.
WARNING
DO NOT CONNECT THE DENDROXRAY 2 TO THE AC LINE UNTIL CHAPTER 4 IS REACHED
Installation of the warning signal lamp
Mount the warning signal lamp in the nearby the X-Ray Unit.
Installation of the Cooling
!!! IMPORTANT !!!!
Position the cooling unit on the floor.
The cooling unit must be positioned in a freestanding position for good air circulation (otherwise reducing of the
cooling capacity)
Proper Grounding
The main power supply of the X-ray unit must be proper grounded, preferably to a water system ground using
2
copper pipe. Use heavy gauge wire for all ground connections (Min. 4mm )
!!!! IMPORTANT !!!!
Connect a ground wire from the power unit to a fix earth connection (Not a plug!).
Connect the water pipes
Connect the water pipes between the X-ray tube and the cooling unit.
-Remove plug of filler
-Fill the cooling unit with distilled water (about 3 cm above cooling fins).
The requirement is about 3 liter
-Screw plug of filler
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 7
4-Put into operation
!!!! IMPORTANT !!!!
- The use of the DENDROXRAY 2 is only allowed for person with a written permission.
- During the use of DENDROXRAY 2 it is strictly forbidden for somebody to be inside the
irradiation room.
- Install the x-ray film and the wood samples in the irradiation room.
- Close the door of the X-ray Unit.
!!!! Important !!!!
For first time put into operation only:
- Control first all point of the installation procedure
- Connect the DENDROXRAY 2 to the AC line.
.
- Put the switch-on-key in the power switch.
- Turn the switch-on-key to the right.
-> The cooler is now working.
- Remove the switch-on-key
- Remove cap of reservoir of the cooling unit
- Check the coolant level. If necessary refill coolant with distilled water about 3 cm above cooling fins.
!!!! Important !!!!
For first time put into operation only:
- Let the cooling unit run for about 10 minutes to de-aerate the coolant circuit
- Check the coolant level. If necessary refill coolant
- Screw cap of reservoir of the cooling unit
- Control that the cooling system is sealed (no water is coming out) !
- If water is coming out switch of the Main Switch and remove the main plug !
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 8
The Temp. Water and Door Led on the control panel are now ON continuously.
- Preset X-RAY VOLTAGE and X-RAY CURRENT with the potentiometers and the panel meters.
Display
Values
X-ray OFF
X-ray ON
Preset
Actual
- Preset X-RAY duration on the timer.
Display showing counter value
Timer Setting Operation:
LED X Run Operation Mode
LED P Program Mode
1. Press the → key ( LED P ON)
2. Hold down the < key until decade position you
Selector for Operation and
programming
3. Hold down the ∧ key until the required number
Reset key
4. To store press the → key
5. Press the → to set the operating mode
Setting key for decade input
Setting key for decade selection
require to change flashes
within the flashing decade is reached
( LED X ON)
6. Press the C key to Reset the Counter
-Press KEY X-RAY ON.
Warning Lamps and signal are now lightning.
Now the X-RAY VOLTAGE and X-RAY CURRENT panel meters are displaying the real current and the
real voltage. If the values are different of the selected values, correct them to desired values.
After that the Preset time is over, the timer automatically switches off the X-RAY. Warning Lamps and
signal are now no more lightning)
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 9
If the temperature of the cooling water is more than 34°C, it automatically switched
Off the X-RAY.
-> It is then necessary to check the room temperature.
If the cooling water flow is less than 4.1lt/min, it automatically switched Off the XRAY.
-> Check the coolant level. If necessary refill coolant with distilled water about 3 cm
above cooling fins.
If the door handle is turned up, it automatically switched Off the X-RAY.
Before switching Off the DENDROXRAY2 by pressing the Off switch under the keyswitch, wait 2 minutes for the cooling of the x-ray tube. (It will increase the lifetime
of the x-ray tube).
- Now the door of the X-Ray Unit can be opened.
!!! Very Important Remarks !!!
By opening the door of the X-Ray Unit during working of the DENDROXRAY2, the power of the
DENDROXRAY 2 will automatically be shut down. To restart DENDROXRAY2 it is necessary to close the
door again and to turn the key ON onto the control panel.
The Main Switch / Emergency Stop Button has the same function as the safety door switch.
The safety door switches should NOT be used to switch Off the
DENDROXRAY2. To switch Off use the power Off button on the front
panel or the Main Switch.
It is also NECESSARY to wait at least 2 minutes after X-ray are Off
before switching Off the DENDROXRAY. The cooling system must
remain in operation for at least 2 minutes after the termination of the
last exposure
It is strongly recommended to remove the switch-On-key after switching On DENDROXRAY2.
The light emitted by the instruments of the control panel destroys an opened x-ray film.
For this reason, if a film has to be opened during DENDROXRAY2 is working, it is necessary to place a
black cover onto the DENDROXRAY2 Control Panels described previously.
After switching Off or switching Off the main switch or opening of the door it is necessary to wait 3
minutes before switching On DENDROXRAY 2 again.
If the DENDROXRAY 2 is not used for a longer period, it is recommended to remove the main plug.
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 10
Positioning of the x-ray Film
The ideal position of the x-ray film is in the middle of the X-ray chamber.
Other instruments
This counter counts the operating hours of the x-ray tube
Radiation curve
Anode
Current
25 mA
24 mA
23 mA
22 mA
21 mA
20 mA
19 mA
18 mA
17 mA
16 mA
7
Anode Current vs Anode Voltage
absolut maximum current
recommended operation current
8
9
10
11
12
13
14
15
16
17
18
19
20
Anode Voltage [kV]
Exposure Time
Wood probe thickness = 1.1mm
Kodak Industrex B
8kV,
18mA,
40 min*
9kV,
20mA,
12 min*
10kV, 20mA,
4 min*
Kodak Industrex MX125
9kV
10kV
20mA, 34 min*
20mA, 14 min*
* Depending of the film used
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch
DENDROXRAY2 INSTRUCTION MANUAL
REV 1.02, April 2006
page 11
5-TECHNICAL DATA
Dimensions:
X-ray unit:
Cooling unit:
2300 x 700 x 500 mm
295 x 300 x 340 mm
Weight (approx.)
X-ray unit:
Cooling unit:
Coolant quantity:
170 kg
20 kg
approx. 3 .0 l
X-ray film dimension (max.):
300 x 300 mm
Distance tube to film (ideal):
2m
X-ray voltage:
8...20 kV
Anode current (max.)
24 mA
Radiation output:
45 Sv / h ( 20 kV, 24 mA, 2 m)
Focal spot acc. EN 12543
d = 3mm
Focus point:
IEC 336 1.5 x 1.5 mm
Anode angle:
20°
Power supply:
230 VAC - 50 Hz max. 750 VA
Fuse:
8A
WALESCH Electronic GmbH, Gestenrietstrasse 2, PO Box 357, CH-8307 Effretikon, Switzerland, +41 52 343 80 80, FAX +41 52 343 15 00
Mail: info@walesch.ch
Web: www.walesch.ch