Product performance:
WIN128 High pressure ionization chamber (HPIC) is mainly used for gamma radiation detection in the environment. Spherical detector is used inside, the volume is 8L, the pressure is 25 atmospheres. This machine can provide stable and accurate measurement data, and the energy response is good, the sensitivity is high, the data response is quick, is very suitable for the measurement environment background, as well as the low level gamma radiation.
This machine implements the standard OF GBT8993-1998.
Technical parameters:
● Detector: spherical Ar high pressure ionization chamber (gas pressure > 25 atmospheres) 8L
● Detection rays: X,
● Measurement unit: Gy/h, Sv/h
● energy response: relative response difference of 50KeV -- 3MeV < 30% (relative to 137CS reference radiation)
● Response time: < 2S
● Inherent error: ≤±3%
● Self background: < 5nGy/h
● sensitivity: > 2.6 x10-6a /(Gy/h)
● System linearity: < 1% across the range
● Measurement range: 0.1NGy /h(nSv/ H) -- 100mGy/h(mSv/ H) (optional: 1Gy)
● overload characteristics: can withstand the maximum range of 100mGy/h10 times more than the dose rate for a long time without damage and overload prompt
● Auxiliary measurement: sensor temperature, ambient temperature, battery voltage, high voltage value
● Sampling time: 0. Ls -- 999s can be set to any value
● Angle response: < 5%(85% visible area, upward direction);
< 10%(15% visible area, overlooking direction)
● Data fluctuation: < 1%(record one data every 10 seconds (reading interval 10s), continuous measurement for 20 times, calculate the discreteness of data)
● Ambient temperature: < 1%(measured data and calculated discretely after being placed at -25℃, 25℃ and 50℃ for more than 4h)
● High temperature and humidity: < 1%(under the condition of 50℃ and 95% relative humidity, after constant temperature for 4h, the dose rate of 137Cs point source at the fixed place was measured once a day for 15 days, and 10 dose rates were read each time and the average value was taken; Obtain the relative standard deviation of 15-day data)
● vibration characteristics :(refer to appendix E of GB/ t8993-1998 "environmental conditions and test methods for nuclear instruments", the test sample ACTS with vibration in the non-working state and needs to work normally after undergoing the test. Unless otherwise specified in relevant standards, the test sample (under packing condition) shall vibrate successively on three mutually perpendicular axes (amplitude 2cm, frequency 10Hz, and test time per dimension 30min). It shall be able to ensure normal operation after testing under the above conditions
● Long-term stability: < 2% :
137Cs point source (intensity: the dose rate at 1 meter is 3-5 times of the background dose rate in the environment used by the instrument) should be used for a periodic test every 3 months. The reading should be checked for 10 minutes each time, and the deviation of the net reading should be less than 2%.
Product Use:
WIN128 high pressure ionization chamber for the field of: homeland security, nuclear plants and nuclear facilities protection monitoring, airport, seaport, customs and border protection monitoring nuclear waste site protection monitoring, isotope medical enterprises protection monitoring, radioactive sources used in the construction industry and the use of units of law enforcement surveillance, used for nuclear research department and education department, nuclear accident, the nuclear industry system, environmental protection, emergency, nuclear medicine, nuclear facilities, radiology, scientific research and so on.
Product Advantages:
WIN128 high pressure ionization chamber adopts advanced electronics measurement technology, large storage capacity, easy to operate, provides real-time measurement curve display, historical data query, data export, friendly operation interface, large LCD display, alarm threshold can be set. It can be used by single machine or multi-machine network (> 1000 sets). Can view the data at fixed end and mobile end, easy to use, suitable for a variety of applications.
