3B SCIENTIFIC U192001, Инструкция

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half-value thickness (HVT); exposure times, non-
destructive material analysis.
Scope of delivery:
1 Maltese cross
1 Phantom
1 Circular aperture
1 Aluminium layer, stepped
5 Aluminium absorbers, 0.1/0.25/0.5/1.0/2.0 mm
1 Lead absorber, 0.5 mm
1 Plastic absorber
2 Magnets
4 Material testing models (porosity, cracks,
weld, painting)
5. Filmpack 2 U19209
Filmpack 2 contains highly sensitive films for ra-
diography using
α
,
β
and X-ray radiation. The
films are individually wrapped in opaque plastic
covers and can be developed and fixed in day-
light.
Scope of delivery:
20 Films 38 mm x 35 mm in opaque plastic wrap-
pers
1 Bottle of X-ray developer
1 Bottle of X-ray fixer
1 Syringe with cannula for injecting chemicals
into the film wrappers.
1 Metal clips
6. Filmpack 4 U19210
As per Filmpack 2 except:
12 Films 150 mm x 12 mm in opaque plastic
wrappers for Debye-Scherrer camera.
7. Motor drive U19202-115 or U19202-230
A motor drive is used in conjunction with a De-
bye-Scherrer camera for analysing structures us-
ing the rotating crystal method.
Mains: 115/230 V, 50/60 Hz
Power consumption: 3 VA
8. Ionisation chamber U19208
The ionisation chamber is for investigating the
ionisation of air and other gases by X-rays at dif-
fering pressures (saturation characteristic, Geiger-
Müller tube model, dosimetry).
Operating voltage: max. 2 kV
Ionisation current: 10
-11
to 10
-10
A
Rod electrode: 75 mm long
Chamber: 85 mm x 25 mm dia.
Tubing: 5 mm dia.
9. Geiger-Müller tube U19201
The Geiger-Müller counter tube is a self-
quenching halogen-trigger counter tube for regis-
tering
α
,
β
,
γ
and X radiation.
Dose rate range: 10
-3
to 10² mGy/h
Mass of active surface (mica):
2.0 to 3.0 mg/cm²
Operating voltage: 500 V
Connection: BNC
Cable length: 1 m
Dimensions: 57 mm x 22 mm dia.
10. Ratemeter U19203
The ratemeter counts pulses from a counter tube
and measures emitter current in an X-ray tube. In
conjunction with a digital display with an adjust-
able threshold (U18620), the output signals,
counter tube voltage, pulse rates and current can
all be displayed directly.
Current measuring input: Jack socket
0 to 200
μ
A
Ratemeter meas. range: 0-2,000 pulses/s
0-20,000 pulses/s
Trigger times: 3 s, 15 s, 30 s, 60 s
11. Digital display with adjustable threshold U18620
This digital display with adjustable threshold is
intended for immediate use with the ratemeter
(U19203). It has four input channels and the up-
per and lower limits for these can be signalled
audibly.
Display: 3½ digits, 12.5 mm high
Dimensions : 105 mm x 76 mm
8. Operation
8.1 Checking radiation protection equipment
Every time the X-ray apparatus is used, you should
check in advance that the equipment relating to
radiation protection is functioning correctly. This
check should be conducted in the sequence that
follows. In the event of any of these steps revealing a
problem, the equipment must immediately be un-
plugged from the mains. If the problem cannot be
eliminated by following the suggestions listed in
Section 10, the X-ray apparatus will need to be re-
paired by the manufacturer. Only if this safety check
is completed successfully may the X-ray equipment
be used.
•
Check the cover for damage.
•
Check that the screening plate with the radiation
sign is firmly secured.