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    • 9. 发明申请
    • RADIATION DETECTOR AND RADIATION DETECTING METHOD
    • 辐射检测器和辐射检测方法
    • US20090140159A1
    • 2009-06-04
    • US12293849
    • 2007-02-26
    • Yasuhiro TomitaYuji ShirayanagiShinjiro Matsui
    • Yasuhiro TomitaYuji ShirayanagiShinjiro Matsui
    • G01T1/00
    • G01T1/17G01T1/247
    • A radiation detector 6 detects radiation that passed through a specimen 2 by discriminating it by a plurality of energy regions. The radiation detector 6 includes a radiation detecting section 10 which generates output signals corresponding to energy of the incident radiation, and a signal processing section 20 which discriminates output signals by first through N-th signal discrimination thresholds T1 through TN and acquires regional counts A1 through AN as radiation counts in the plurality of energy regions W1 through WN by counting the discriminated output signals. The first through N-th signal discrimination thresholds T1 through TN are set so that reference regional counts A1(B) through AN(B) as regional counts in the plurality of energy regions W1 through WN when the radiation detecting section 10 detects radiation (reference radiation) before passing through the specimen 2 become substantially equal.
    • 辐射检测器6通过多个能量区域区分它来检测穿过样本2的辐射。 辐射检测器6包括产生与入射辐射能量对应的输出信号的放射线检测部分10以及通过第一至第N信号鉴别阈值T1至TN鉴别输出信号的信号处理部分20,并通过 AN通过对识别出的输出信号进行计数来计算多个能量区域W1至WN中的辐射计数。 设定第1至第N信号鉴别阈值T1至TN,使得当辐射检测部分10检测到辐射时,参考区域计数A1(B)至AN(B)作为多个能量区域W1至WN中的区域计数 辐射)在通过样本2之前变得基本相等。
    • 10. 发明授权
    • Radiation detector
    • 辐射检测器
    • US07847261B2
    • 2010-12-07
    • US11993391
    • 2005-06-30
    • Yasuhiro TomitaYuji ShirayanagiShinjiro Matsui
    • Yasuhiro TomitaYuji ShirayanagiShinjiro Matsui
    • G01T1/161
    • G01T1/169G01T1/161
    • A detecting unit (2) detects radiation. A data acquiring block (34) creates basic data equivalent to the count per unit time of the detected radiation. A data processing block (40) compares the basic data with a threshold and generates a annunciation control signal when the basic data is above the threshold. An annunciation block (42) generates a detection sound in response to the annunciation control signal. A computing block (38) computes the threshold by using a coefficient specified by means of an input device (18) and the maximum value of the basic data stored in a storage block (36). When the user repetitively examines a region (50) to be measured while gradually increasing the threshold, the region where the detection sound is generated is gradually narrowed. With this, a portion (53) where radiation is concentrated in the region (50) can be found out.
    • 检测单元(2)检测辐射。 数据获取块(34)产生与检测到的辐射的每单位时间的计数等价的基本数据。 数据处理块(40)将基本数据与阈值进行比较,当基本数据高于阈值时,生成通知控制信号。 通知块(42)响应于通知控制信号产生检测声音。 计算块(38)通过使用通过输入装置(18)指定的系数和存储在存储块(36)中的基本数据的最大值来计算阈值。 当用户在逐渐增加阈值的同时重复地检查要测量的区域(50)时,产生检测声音的区域逐渐变窄。 由此,可以发现辐射集中在区域(50)中的部分(53)。