PDF《RAPID RADON MONITOR》

RAPID RADON MONITOR Model # FR-5-FS 快速氡监测器 TECHNICAL ASSOCIATES Divisions of OVERHOFF TECHNOLOGY

7051 Eton Ave.

, Canoga Park, CA

91303 818-883-7043 (Phone) 818-883-6103 (Fax) tagold@nwc.net WWW.TECH-ASSOCIATES.COM FEATURE S特点 ?SYSTEM GIVES QUICK MEASUREMENT 系统进行快速测量 ?BETTER THAN

1 PICOCURIE PER LITER SENSITIVITY WITH ONE HOUR WAIT 一小时后灵敏度优于每升1皮居里 ?PORTABLE (AC OPERATED) 便携(AC供电) ?REPLACEMENT CARTRIDGES WIDELY AVAILABLE 可替换滤芯,容易购买 A two part system is included in this monitor with charcoal filter holder, second a scintillation counter/scaler. In practice, the pump and filter holder are taken to the area to be tested and air pulled through the filter for a period of at least

3 minutes. (Longer pull times increase the sensitivity but

3 minutes gives the sensitivity of

1 picoCi/liter.) Part two, the scintillator/scaler, receives the sample and counts the activity. A

3 minute count based on a

3 minute sample achieves

1 pico Ci per liter. A ten minute count based on a ten minute sample achieves a 0.1 pico Ci/liter sensitivity. A waiting period of approximatelyone hour after taking the sample and before counting is required to maximize the sensitivy. Longer or shorter waiting times (from ten minutes to seven days) will still allow detection and accurate measurement of Radon in air but at lesser sensitivity than above. 此仪器包含两部分,带炭滤器固定器,闪烁计数器/定标器,使用时,泵和滤器固定器现场测试, 空气通过滤尘网抽进至少3分钟,(更长时间进气可增加灵敏度但是3分钟进气灵敏度达1 picoCi/liter),第二部分,闪烁体/定标器接受样品计量活度.基于3分钟采样的3分钟计数达到 每升1皮居,基于10分钟采样的10分钟计数达到0.1皮居每升灵敏度.取样后计数前要求等待时 间接近1小时以增加灵敏度,稍长或稍短的等待时间(从10分钟到7天)仍旧允许探测和精确测 量空气中氡但会比上述减少灵敏度. RAPID RADON MONITOR Model # FR-5-FS 快速氡监测器 TECHNICAL ASSOCIATES Divisions of OVERHOFF TECHNOLOGY

7051 Eton Ave., Canoga Park, CA

91303 818-883-7043 (Phone) 818-883-6103 (Fax) tagold@nwc.net WWW.TECH-ASSOCIATES.COM 1. Collection MODEL AS-2 采样MODEL AS-2 Regulated Air Sampler complete with pump and flow meter and filter/cartridge holder. 调节空气采样器,配备泵,流量计和滤网/滤芯固定器 Free air turbine pump capacity is

30 CFM, under constant surveillance by flow meter. 空气涡轮泵容量30 CFM,由流量表连续监测

10 cartridges are furnished as standard part of the AS-2. 10个滤芯作为AS-2的标准配件 It should be noted that cartridges may be reused if the count of the cartridge shows zero counts above background. 应该指出的是如果滤芯计数显示本底以上零计数,则可以重复使用 2. Scintillation/counter consists of MODEL PRS-5 or cheaper scaler electronic package coupled with MODEL STG-4 Pi shielded sample holder scintillator. 闪烁/计数包含型号PRS-5或更便宜的定标器电子封装耦合到MODEL STG-4 Pi 屏蔽样品托的闪烁 体探头 Note: Additional charcoal cartridges are available 注:供应额外碳滤芯 SENSITIVITY:

1 pico Ci/liter with

3 minute air collection and

3 min count after

1 hour wait. 灵敏度: 3分钟集样,3分钟计数一小时等待后为1皮居/升DAILY VARIATIONS: Radon concentration varies dramatically during each day. To measure daily average value, leave pump operating in place for