RAM-I online radiation safety alarming device (national bag installation)
1, online radiation safety alarming device host
RAM-type I radiation alarming device is a new type of fixed and wall hanging installation of the x γ radiation dose online and continuous monitoring alarm device, it adopts the special design the preamplifier and silicon detector (other detector be according to radiation level choice), has a high sensitivity, convenient operation, automatic display, data storage and super threshold alarm and other characteristics, can real-time x γ radiation dose rate are (μ Gy/h and μ Sv/h can convert display), at the same time, you can give the individual cumulated dose (μ Sv), but also can be used as online radiation monitoring system to realizes real-time monitoring and super threshold safety alarm.
Radiation detectors or by GM tube water-hydrogen-hydrogen cooled scintillation detectors or semiconductor detector (according to select, general safety alarm measurement choose 1 a GM tube and a scintillation detectors were 2), power supply circuit, count display and operation panel, put ZhuFang circuit, and before the alarm lamp components. Probe the shaping circuit with 15 meters cables and host connection, the host the frequency, time counting, points alarm circuits, etc, realize the dose rate measure and report to the police. The measuring time timing fast gear 1 second, low gear timing 3-60 seconds, can according to dose rate size selection. Panel key can be in 0.25 u Gy/h-5 Gy/h set threshold between, when dose rate exceeds the threshold value, the instrument lighting and sound alarm and happen automatically record store, can find out the historical record inquires threshold alarm value. It is widely used in radioactive waste repository, industrial NDT, hospital γ knife therapy, isotope application of gamma irradiation, hospital, X-ray diagnosis, treatment, nuclear power station cobalt radioactive place, remind staff or radiation equipment is already in radioactive sources work or leak state, make its from radiation hazards. According to ray device, in the threshold alarm at the same time, according to the special requirements of users need to design door control signal to realize "door machine chain" function.
RAM-I online on-site monitoring alarm device (host + 3 probe photos)
1, RAM-type I supporting NaI scintillation detector
1, the probe: Φ 30 × 25 mm (NaI (TI) crystal),
The detectors measure environment, general installation in ray machine or outdoor activities of the corridor, and rays in the engine room of high sensitivity GM tube for "more" probe measurement, "there is the only has identified", the set of environmental security alarm threshold value namely, can reflect the true ray is out, and staff and the general public are generally in the rays of the radioactive sources machine or outdoor activities corridor, really need monitoring of environmental security, this also is the environmental protection department radiation safety requirements.
2, measurement range: 0. 01 μ Gy/h ~ 900 μ Gy/h; Maximum overload dose rate 600 μ Gy/h
3, response time: 1 S
4, measurement error: than plus or minus 15%
5, energy response: 40 Kev ~ 3 Mev
6, use environment: temperature-10 ℃ ~ + 50 ℃, relative humidity (in 40 ℃ temperature) more than 98%
2, RAM-I radiation alarming device type supporting GM tube the probe
1, the probe: metal GM tube (J305),
This sensor installed in the rays of the radioactive sources room room or personnel activities many of the place, as the on-line monitoring, and realization of a set of safety threshold that alarm.
2, measurement range: 0. 01 μ Gy/h ~ 5000 μ Gy/h; Maximum overload dose rate 10 mGy/h
3, response time: 3 S
4, measurement error: than plus or minus 30%
5, energy response: 40 Kev ~ 1.5 Mev
6, use environment: temperature-10 ℃ ~ + 50 ℃, relative humidity (in 40 ℃ temperature) more than 98%
3. RAM-I radiation alarming device type semiconductor supporting the probe
L detector: silicon semiconductor detector, energy response: 28 Kev-3 Mev, the inherent error less than 10%.
L measuring time interval: 5 S can be set, high sensitivity: 1.1 * 10-2 CPS
L measurement range: 0.1 u Gy/h-5 Gy/h, (μ Sv/h), 0-99 mSv
L the measuring unit: μ Gy/h, mu Sv/h, Sv can convert buttons
L alarm threshold can be set up: 0.25 u Gy/h-10 Gy/h
L environment temperature:-5-45 degrees; Humidity: 5-95%, envelop dimensions: probe φ 45 mm x 255 mm
Radiation alarming device features:
1. GuaBiShi master control box: convenient installation, general electric equipment can be fixed (host, alarm lamp, probe).
2. Intelligent design: the microcomputer control, dot-matrix LCD display, Chinese state tip operation and state.
3. Alarm threshold: alarm threshold value in measurement range can be arbitrary Settings
4. But more than external probe, most may meet four probe
5. Standard RS232 / RS485 interface: but will be gathering data to the PC.
6. Calendar clock function, work power: AC220V ac power.
4. A host 1-4 can form a complete set a probe.
Applied GM tube is suitable for high dose rate probe of the values of the requirements, environment monitoring NaI scintillation detector is more appropriate, in addition the high radiation area, semiconductor detector (third head, general users don't need choice) more appropriate;
According to the needs of user, the host through RS485 interface, data processing can realize the long-distance communication, to 1000 m.
5. Example: in November 2009 to complete of tsinghua university HeYanYuan components floor alarm system
Example: 2009-11 tsinghua university HeYanYuan components floor alarm system project
