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1.发明授权Method and circuit arrangement for compensating for rate dependent change of conversion factor in a drift-type radiation detector and a detector appliance 有权用于补偿漂移型辐射检测器和检测器装置中的转换因子的速率依赖性变化的方法和电路装置公开(公告)号：US07193216B2
公开(公告)日：2007-03-20
申请号：US10971208
申请日：2004-10-22
申请人： Erkki Sakari Kiuru
发明人： Erkki Sakari Kiuru
IPC分类号： G01T1/24
摘要： For compensating for the rate dependent change of charge-to-voltage conversion factor in a drift-type radiation detector there is detected a change in a momentary photon hit rate affecting said drift-type radiation detector. A drain current flowing through an integrated amplifier of said drift-type radiation detector is changed by an amount proportional to the detected change in said momentary photon hit rate.
摘要翻译： 为了补偿漂移型辐射检测器中的电荷 - 电压转换因子的速率依赖性变化，检测到影响所述漂移型辐射检测器的瞬时光子命中率的变化。 流过所述漂移型放射线检测器的集成放大器的漏极电流被改变与检测到的所述瞬时光子命中率的变化成比例的量。
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2.发明授权
公开(公告)号：US4114085A
公开(公告)日：1978-09-12
申请号：US735983
申请日：1976-10-27
CPC分类号： G05F1/567
摘要： In a stabilized voltage source having an actual-value voltage gauge which is temperature dependent, the overall temperature stability of the voltage source is improved by providing a reference-value voltage with an adjustable temperature coefficient, said temperature coefficient being so adjusted that it substantially compensates for the temperature dependence of the actual-value voltage gauge within the temperature range used. The reference voltage having an adjustable temperature coefficient is preferably obtained by combining a first voltage which is essentially independent of temperature with a second voltage being strongly dependent on temperature, the degree of mutual influence of said combined voltages being regulated to adjust said temperature coefficient.
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公开(公告)号：US07173250B2
公开(公告)日：2007-02-06
申请号：US10881420
申请日：2004-06-29
IPC分类号： G01T1/24
摘要： A drift detector produces an indication of an occurred hit of a quantum in the detector element. For neutralising accumulated charge in the detector element, indications of occurred hits are used to trigger pulses of deliberately increased neutralisation current into the drift detector for the duration of a limited time interval. Alternatively such triggering may be based on the operation of a timer.
摘要翻译： 漂移检测器产生在检测器元件中量子的发生命中的指示。 为了中和检测器元件中的累积电荷，发生的命中的指示用于在有限的时间间隔的持续时间内触发故障增加的到达漂移检测器的中和电流的脉冲。 或者，这种触发可以基于定时器的操作。
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4.发明授权Radiation detector, arrangement and method for measuring radioactive radiation, where continuous low-energy background noise is reduced 失效辐射检测器，放射性辐射测量装置和方法，其中连续的低能量背景噪声降低公开(公告)号：US06967329B2
公开(公告)日：2005-11-22
申请号：US10308303
申请日：2002-12-03
CPC分类号： H01J47/06 , G01T1/18 , G01T1/2935
摘要： The invention relates to a radiation detector, an arrangement and a method for an energy-dispersive detection of X-ray photons. X-ray photons are allowed to collide (701) in the radiation detector (201, 601), whereby there are produced (702, 703, 704, 705, 706, 707, 708) observations of the X-ray photons that collided in the detector. According to the invention, there are separately produced observations of X-ray photons (702, 703, 704) that collided in the first detector space (205, 501) of the radiation detector and X-ray photons (705, 706, 707, 708) that collided in the second detector space (206, 502) of the radiation detector. The (712) observations of X-ray photons that collided in the first detector space (205, 501) are ignored, when there is received a simultaneous observation of an X-ray photon that collided in the second detector space.
摘要翻译： 本发明涉及一种用于X射线光子的能量色散检测的放射线检测器，装置和方法。 允许X射线光子在辐射检测器（201,601）中碰撞（701），由此产生（702,703,704,705,706,707,708）观察到的相互碰撞的X射线光子 检测器。 根据本发明，分别产生在辐射检测器的第一检测器空间（205,501）和X射线光子（705,706,707）中碰撞的X射线光子（702,703,704）的观测值， 708），其在辐射检测器的第二检测器空间（206,502）中相撞。 当接收到在第二检测器空间中碰撞的X射线光子的同时观察时，忽略在第一检测器空间（205,501）中相撞的X射线光子的（712）观察结果。
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5.发明授权Method and device for diminishing the background effect in a proportional counter 失效用于定量比例计数器中的背景效应的方法和装置
公开(公告)号：US4075486A
公开(公告)日：1978-02-21
申请号：US765584
申请日：1977-02-04
CPC分类号： G01T1/18
摘要： In a proportional counter comprising a detector for detecting radiation pulses, an energy channel for receiving detected pulses, preferably as pre-amplified, from the detector, and a pulse height analyzer for the analysis of pulses received from the energy channel, the background effect is reduced by measuring the detector charge pulse collection time caused by electron diffusion and the time interval between the detector pulses, comparing the measured times with predetermined limit values and, thereupon, discriminating all pulses which have collection times longer than the predetermined rise time that is have too long a rise time, or which appear at shorter intervals than the predetermined limit interval, that is are too close to an adjacent pulse be it a preceding or following pulse. In order to produce signals proportional to said rise time and said time interval, the pulses are preferably transformed in electronic circuits, for example, in two derivation circuits and one integration circuit. The predetermined limit values may be represented by two reference voltages and the discrimination is carried out by using known logic circuits.
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