Olsher R H, Frymire A, Gregoire T
Mail Stop J573, Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, NM 87545, USA.
Radiat Prot Dosimetry. 2005;113(1):112-4. doi: 10.1093/rpd/nch431. Epub 2005 Mar 15.
Radiation sources producing short pulses of photon radiation are widespread. Such sources include electron linear accelerators and field emission impulse generators. It is often desirable to measure leakage and skyshine radiation for these sources in real time and at environmental levels as low as 0.02 microSv per pulse. This note provides an overview of the design and performance of a commercial, real-time, pulsed photon dosemeter (PPD) capable of single-pulse dose measurements over the range from 0.02 to 20 microSv. The PPD may also be operated in a multiple-pulse mode that integrates the dose from a train of pulses over a 3 s period. A pulse repetition rate of up to 300 Hz is accommodated.
产生短脉冲光子辐射的辐射源很常见。这类辐射源包括电子直线加速器和场发射脉冲发生器。通常希望实时测量这些辐射源的泄漏辐射和散射辐射，且环境剂量低至每脉冲0.02微希沃特。本说明概述了一种商用实时脉冲光子剂量计（PPD）的设计与性能，该剂量计能够在0.02至20微希沃特范围内进行单脉冲剂量测量。PPD也可以在多脉冲模式下运行，在3秒内对一串脉冲的剂量进行积分。它能适应高达300赫兹的脉冲重复率。
