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Inspector EXP射线检测仪

型号: Inspector EXP

产地: 美国

现价: 18500 元

 
 

Inspector EXP是小型的手持式微处理器控制的高灵敏度射线检测仪,能检测αβγ和Χ射线。直接读出射线水平。另外,有可调整的定时器和外部校准键。该剂量仪采用一支盖革-弥勒计数管来测定αβγ及Χ射线辐射,数字显示。

仪器介绍
1、采用一只盖革-弥勒计数管来测定α、β、γ和X射线辐射 
2、“安全第一”(Safety First)的校准功能能够避免校准人员的辐射接触 
3、检测仪符合欧洲CE认证要求
主要特点
1、内置卤素淬灭剂GM探测器,对α、β射线源的灵敏度很高
2、四位液晶显示,可选择mR/hr、CPM、mSv/hr、CPS或Total/Timer等单位
3、总计数/定时器功能对轻微污染进行定时的精确检测,定时时间可选择1分钟--    24小时
技术参数
1、测量范围:mR/hr(毫伦/小时):0.001—110.0,CPM(每分钟计数):0—300,000
   μSv/hr(微希伏/小时):0.01—1,100,CPS(每秒钟计数):0—5,000,总计数:    
  1—9,999,000
2、效 率:Sr-90(546kev,2.3MeV βmax)约75%  C-14(156kev βmax)约11%
   Bi-210(1.2MeV βmax)约64%  Am-241(5.5MeV α)约36%
3、灵 敏 度:3500CPM/ mR/hr(对于Cs-137)
4、精 度:±15%
5、温度范围:-10℃---+50℃
6、电 源:1节9V碱性电池,电池寿命 200小时
7、尺寸重量:150×80×30mm 350克(含电池)
应用领域
●探测和测定表面沾污
●在操作放射性核素时监测可能存在的放射性暴露量
●调查环境污染
●测定惰性气体及其它低能放射性核素
●建筑装饰材料放射测定
 
射线危害:低剂量的放射性射线辐射(天然背景
辐射的变化范围),对人体无害或风险甚低,

但达到一定剂量则会对人体有害,可引起癌症、
白内障、不孕症、突变、萎缩效应、寿命减短,

甚至死亡


应用:侦测放射性射线,以采取相应防护措施。
海关和边境巡逻,政府执法部门,检疫检验,应急事故处理,
核电厂、银行、政府、实验室等部门安全巡查,
医学废料处理,消防队,采矿业,科学实验,
个人保护,连续监测,出入境检验检疫,疾控中心,医院,矿山矿井

参考信息(来自中国辐射防护研究院)

居民的剂量限值为每年1mSv。即0.114μSv/hr。

放射性职业人员剂量限值为每年20mSv,但任何一年不能超过50mSv。

The Inspector EXP
External Probe Surface Contamination Monitor

The Inspector EXP is designed to meet the requirements of emergency response personnel. It has the same valuable features, small size, and quality of the Inspector, but instead of the built-in detector, it has the added versatility of an external probe.

The carrying case has a clear window panel that provides a full view of the readout and count light and access to the switches. It includes convenient hand straps and a belt loop for carrying the instrument and a small pocket for a check source.

The probe can be attached to the carrying case for one-handed operation if desired. The protective probe cover folds easily out of the way during one-handed operation.

Specifications:

Same as Inspector (below) except for external probe:

RAP-RS1 Probe:

Detector: Same as Inspector Alert (below)
Enclosure: Anodized aluminum housing with coated, black foam grip
Power supply: 500-volt, in the probe head
Size: Approx. length: 22.2 cm (8.75 in.) Diameter: 7 cm (2.75 in.)
Connector: Amphenol tuchel connectors

Inspector specifications:

Detector:
Halogen-quenched Geiger-Mueller tube.
Effective diameter 1.75" (45 mm).
Mica window density 1.5-2.0 mg/cm².

Display: 4-digit liquid crystal display with mode indicators

Operating Range:
mR/hr: .001 to 100.0
CPM: 0 to 300,000
mSv/hr: .01 to 1,000
CPS: 0 to 5,000
Total: 1 to 9,999,000 counts

Gamma Sensitivity:
3500 CPM/mR/hr referenced to Cs-137
Smallest detectable level for I-125 is .02 mCi at contact

Efficiency: For 4 pi geometry at contact

Beta
C-14 (49 keV avg. 156 keV max.): 5.3%
Bi-210 (390 keV avg. 1.2 MeV max.): 32%
Sr-90 (546 keV and 2.3 MeV): 38%
P-32 (693 keV avg. 1.7 MeV max.): 33%

Alpha
Am-241 (5.5 MeV): 18%

Averaging Periods:
Display updates every 3 seconds, showing the average for the past 30-second time period at normal levels. Averaging period decreases as radiation level increases. User can select fast 3-second averaging period.

Timer: Can set 1-10 minute sampling periods in one-minute increments, 10-50 minute sampling periods in 10-minute increments, and 1-24 hour sampling periods in 1-hour increments

Alert:
Beeper sounds the alert
User-adjustable alert level is set using three buttons

Accuracy: ± 15% up to 50 mR/hr; ± 20% up to 100 mR/hr

Anti-Saturation: Readout holds at full scale in fields up to 100 times the maximum reading

Temperature Range: -20º to +50º C, -4º to 122º F

Power: One 9-volt alkaline battery; battery life is average 2160 hours at normal background, average 625 hours at 1 mR/hr with beeper off

Size: 150 x 80 x 30 mm (5.9" x 3.2" x 1.2")

Weight: 350 grams (11.4 oz) including battery

I/O Ports: Stereo 3.5 mm jack for CMOS or TTL devices – sends counts to computer or data logger. Mono 2.5 mm jack provides electronic calibration input.

Count Light: Red LED flashes with each radiation event

Audio: Beeper beeps with each radiation event; can be muted

 
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