China has developed into the world's largest producer and consumer of stainless steel. However, China's stainless steel industry started late, the system is imperfect, and there is a low industrial concentration. A large number of private enterprises are restricted by funds, production scale is small, equipment is backward, and some small factories still use induction furnace smelting, die casting small steel ingots, horizontal rows. There are still many problems in the process of rolling mills, product quality and environmental protection. Among them, the production technology limitations of the manufacturer, resulting in excessive radioactive elements in stainless steel (such as cobalt 60/Co60, etc.), resulting in the existence of radioactive radiation intensity exceeding the standard of stainless steel, and China is a large country, these use of radiation exceeded When stainless steel products produced by materials are sold abroad, they will suffer major economic losses due to radiation radiation exceeding the standard and failing to meet the relevant product safety standards.
The data show that cobalt-60 (Co) is one of the radioisotopes of the metallic element cobalt, and its half-life is 5.27 years. It emits high-speed electrons with energy up to 315 keV into nickel-60 through beta decay, and emits two gamma rays. Cobalt-60 has extremely strong radiation and can cause hair loss, which will seriously damage the cell tissues in the human blood, cause white blood cells to decrease, cause blood system diseases, such as aplastic anemia, and severely cause leukemia (blood cancer). ),even death.
Since radiation radiation can cause serious harm to human health, countries around the world are very strict in the management of radioactive materials. Therefore, the world's associations have mandatory safety regulations for stainless steel raw materials and their products. However, subject to the actual conditions of the current Chinese manufacturers, the regulatory authorities are not able to comprehensively supervise all the stainless steel products on the market, plus some small enterprises to profit from the map, and even use the waste steel itself containing radioactive materials to produce stainless steel, The problem of excessive radioactive radiation in stainless steel has been banned in China.
For many small stainless steel enterprises, there is often a lack of relevant testing equipment, resulting in the purchase of stainless steel raw materials with excessive radiation radiation intensity, so that the finished stainless steel products are also subject to radioactive pollution, especially in economically transmitted areas, such as the Pearl River Delta. In the Yangtze River Delta and other regions, there are a large number of small-scale production enterprises. These companies export a large number of stainless steel products every year, or provide accessories for large-scale production enterprises. These products may be exposed due to excessive radiation intensity during export inspection. Customs seizure, which has serious consequences for the enterprise. Therefore, it is necessary to configure a special radiation (nuclear radiation) detector or a radioisotope detector.
However, for SMEs, it is not practical to purchase large-scale testing equipment. These equipments are basically imported foods, which are expensive and demanding. Therefore, a small, high-sensitivity portable nuclear radiation detector is an ideal choice, but such equipment is uneven and numerous models, how to choose a model that suits you is the primary problem.
The following is a reference by Dan Ding Industrial based on the introduction of an imported nuclear radiation detector commonly found in the domestic market.
Inspector
USB
profession
High precision
digital
Radiation detector, multi-function nuclear radiation detector is
S
E
Company needle
Formerly acclaimed
I
Nspector+
profession
High precision
digital
Radiation detector, multi-function nuclear radiation detector
of
basically
Push
One
Accurate measurement and radiation for radiation dose
Surface contamination measurement,
Nuclear radiation safety monitoring, etc.
application
More
Features
Nuclear radiation measurement
equipment
. It fits into S
E latest manufacturer
art
And technology
,
And for the actual application of the customer
upgrade
Multiple
real
Functional
Especially suitable for nuclear stories
Emergency
Response, hospital X-ray
room
Customs inspection, environment
Evaluation
Various
On-site inspection of the site.
Inspector
USB
of
Core sensor
Adopting the latest generation of improved models from American Sensors Corporation (LND)
High sensitivity, large size (1.7
7
Inch) flat spiral sensor
(LND7
300
),
This kind of sensor is not
with
Energy intensity radiation has good responsiveness, especially
Is for low
Strength and
Weak penetration
Alpha, beta ray energy
Provide good detection efficiency,
Is the current sensitivity and response
Sex
The best sensor,
Fast, accurate detection of alpha, beta, gamma and x-ray activity
Degree, dose rate and pulse count
.
Built-in high-speed microprocessor
powerful
,
Fast data analysis
Ability to guarantee Inspector
USB
Can provide the best stability and precision in its class.
Inspector
USB
Support multiple detection modes (surface
Pollution activity detection,
dose
Rate detection, pulse count detection, cumulative count detection
), users can quickly switch.
Inspector
USB
Built-in sound and light alarm function, support for custom setting alarm function. At the same time, latest
of
Inspector
USB
Built-in interior
memory
body
And standard
USB data
Output port
,This
Sample operator can pass
U
SB
data
Line and
Dedicated observation
software
,will
Inspector
USB
change
Into a simple online monitoring terminal,
of course
Operator can also
Will be real time
Data and
Body memory
in
The data is uploaded to a computer for analysis and storage.
up to date
of
Inspector
USB
Yes
A true portable surface contamination detector with built-in multiple
often
See the isotope detection efficiency calculation parameters,
Free
Choose different radiation
with
Bit source
,This
Will make
Inspector
USB
compared to
Similar products have better detection efficiency
. Inspector
USB
stand by
direct
With Bq, DPM
Display surface contamination
live
Degree strength
,most
The important thing is that for professional users,
Inspector
USB
stand by
The user manually calibrates the different nuclei and saves the conversion factor
Built in
of
storage
In the device
,
this will
pole
Good for the special requirements of professional users.
In addition
,
In response to the increasingly complex use environment,
Inspector
USB
Especially enhanced the detection data analysis function, making
Inspector
USB
Not only meet laboratory-level testing needs, but also for potential nuclear radiation safe areas,
Inspector
USB
Built-in real time
Radiation monitoring engine
(RME) has an uninterrupted real-time monitoring mode that protects the personal safety of workers in the area and enables rapid environmental assessment. In addition
,
Robust protective body guarantees
Inspector
USB
Accurate monitoring of multiple radiations under extreme conditions. Compared with our competitors,
Inspector
USB
Powerful feature
Only more widely used, too
It allows you to work in any environment.
Features:
Large size, four-digit LCD display, clear and intuitive detection results, with backlight function (independently open switch)
A new generation of high sensitivity sensors (1.7
7
Inches), multiple metering modes: live
Metering,
Counting measurement, total counting measurement and dose rate measurement for accurate detection of alpha, beta, gamma and x-ray detection
many
Detection mode
free
Switch:
radiation
Dose mode
, αβ surface
Pollution detection mode,
radiation
accumulation
Metering
mode
Support multiple unit display:
mR/hr,
,
uSv/hr,
,
CPS
Bq
,
CPM
DPM
Built-in common radionuclide detection efficiency parameters, for known nuclides, high accuracy and targeted radioactivity detection
Custom alarm function (0~
50 mR/hr &
0~
160,000 CPM
)
Automatic calibration (for
Different calibration sources, support
from
Definition calibration
coefficient
Setting
)
,
stand by
hand
Dynamic calibration
Internal integrated data record
Device
And USB data
Output port
stand by
USB port is directly powered
abundant
Accessories
select
,
more
Ok
Satisfy each
Test requirements
CE certification, China
National Metrology Institute
Metering
Certification
application:
Check local radiation leakage and nuclear radiation pollution;
Check the radioactivity of building materials such as stone;
Check landfills and landfills that are at risk of nuclear radiation;
Detecting the X-ray radiation intensity of medical and industrial X-ray instruments;
Check groundwater radium pollution;
Check the radioactivity of underground drill pipes and equipment;
Monitor the pollution of air and water quality around nuclear reactors;
Examine the harmful radiation of an individual's valuable property and jewellery;
Check the radioactivity of porcelain tableware glasses, etc.;
Precise positioning of the radiation source;
Potential radiation detection for home decoration
specification:
measuring
Rays
Species
class:
Alpha, beta, gamma and xenon rays
detector:
halogen
filling
Geiger counter tube. Effective diameter
1.77†(45mm)
. Mica flake density
1.
4
-2.0mg/cm
2
.
Display:
band
Mode indicator
4
Digital liquid crystal display
.
Average period:
Display per
3s
Update once display, default display
standard
Intensity under the front
30s
average of. The average period is shortened as the radiation intensity increases
.
Measuring range:
mR/hr:
0
.001
~
1
0
0.0
CPM: 0
~
350,000
μ
Sv/hr:
0
.001
~
1,
0
00
CPS: 0
~5
,
0
00
Total/ Timer - 1
~
9,999,000 counts
Sensitivity:
3340 CPM/mR/hr referenced to Cs-137
Alpha ray
≥
2.
0
MeV
Beta ray
≥
40 keV
Gamma ray
≥
10 keV
Accuracy:
±10%
~
±15%
Alarm settings range:
mR/hr .001 - 50
/
CPM 1 - 160,000
,
70db @ 1m
.
anti-
saturation:
most
High reading
100 times
Indicator light:
The red count light flashes once every time a count is detected (one ionization process)
Sound alarm:
Inside
Set
Buzzer (can be turned off for silent operation)
Output:
Mini
USB, output
To a computer or data logger
port
.
power supply:
9v
Alkaline battery. Battery life under normal conditions
approximately
For 2
16
0
hour
At 1mR/hr
approximately
for
600 hours, support USB port direct power supply
temperature range:
-10
o
C
~
50
o
C
specification:
150 x 80 x 30 mm
weight:
27
5g (without battery)
The above technical article is provided by Shanghai Danding International Trade Co., Ltd.
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