公开(公告)号：US07439524B2

公开(公告)日：2008-10-21

申请号：US11214735

申请日：2005-08-31

申请人： Abraham Katzir ,  Ofer Gayer

发明人： Abraham Katzir ,  Ofer Gayer

IPC分类号： H05B33/00

CPC分类号： G01T1/11 ,  G01T1/115

摘要： A thermoluminescence (TL) dosimetry (TLD) system comprises at least one TLD element that is controllably heated and which temperature is monitored in real time using an infrared (IR) radiometry subsystem that provides respective IR radiation inputs to a control subsystem. The control subsystem uses the inputs to effect the heating control. The TLD system further comprises a TL measuring subsystem for measuring TL emission data from each heated TLD element, the TL data used in obtaining a does curve indicative of the total radiation to which the TLD element has been exposed.

摘要翻译： 热释光（TL）剂量测定（TLD）系统包括至少一个可控加热的TLD元件，并且使用向控制子系统提供相应IR辐射输入的红外（IR）辐射测量子系统实时监测温度。 控制子系统使用输入来实现加热控制。 TLD系统还包括用于测量来自每个加热的TLD元件的TL发射数据的TL测量子系统，用于获得指示TLD元件暴露于其中的总辐射的确定曲线的TL数据。

公开(公告)号：US20060043314A1

公开(公告)日：2006-03-02

申请号：US11214735

申请日：2005-08-31

申请人： Abraham Katzir ,  Ofer Gayer

发明人： Abraham Katzir ,  Ofer Gayer

IPC分类号： G01T1/11

CPC分类号： G01T1/11 ,  G01T1/115

摘要： A thermoluminescence (TL) dosimetry (TLD) system comprises at least one TLD element that is controllably heated and which temperature is monitored in real time using an infrared (IR) radiometry subsystem that provides respective IR radiation inputs to a control subsystem. The control subsystem uses the inputs to effect the heating control. The TLD system further comprises a TL measuring subsystem for measuring TL emission data from each heated TLD element, the TL data used in obtaining a does curve indicative of the total radiation to which the TLD element has been exposed.

摘要翻译： 热释光（TL）剂量测定（TLD）系统包括至少一个可控加热的TLD元件，并且使用向控制子系统提供相应IR辐射输入的红外（IR）辐射测量子系统实时监测温度。 控制子系统使用输入来实现加热控制。 TLD系统还包括用于测量来自每个加热的TLD元件的TL发射数据的TL测量子系统，用于获得指示TLD元件暴露于其中的总辐射的确定曲线的TL数据。

公开(公告)号：US08451529B2

公开(公告)日：2013-05-28

申请号：US13389032

申请日：2010-08-05

申请人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

发明人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

IPC分类号： G02F1/39

CPC分类号： G02F1/39 ,  G02F1/3534 ,  G02F2001/3548 ,  H01S3/109

摘要： A cA crystal configured to change a frequency of a laser through an optical parametric oscillation (OPO) process and a difference frequency generation (DFG) process is provided. The crystal includes: an OPO-DFG segment that is quasi-periodically poled to yield (i) a conversion of a laser pump light applied thereto, to a first signal and an idler, and (ii) a conversion of a first signal applied thereto, to a second signal and to the idler, by phase-matching a difference frequency generation (DFG) process and an OPO process therein simultaneously, wherein the laser pump light has a frequency that equals a sum of a frequency of the first signal and a frequency of the idler and wherein the frequency of the first signal equals a sum of a frequency of the second signal and the frequency of the idler.

摘要翻译： 提供了通过光学参数振荡（OPO）处理和差频产生（DFG）处理来改变激光器频率的cA晶体。 晶体包括：准周期极化的OPO-DFG段，以产生（i）施加于其上的激光泵浦光的转换为第一信号和惰轮，以及（ii）施加到其上的第一信号的转换 通过将差频生成（DFG）处理和OPO处理同时进行相位匹配，到第二信号和空闲器，其中激光泵浦光具有等于第一信号的频率和 所述惰轮的频率，并且其中所述第一信号的频率等于所述第二信号的频率与所述惰轮的频率之和。

公开(公告)号：US08508839B2

公开(公告)日：2013-08-13

申请号：US13120928

申请日：2009-09-15

申请人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

发明人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

IPC分类号： G02F1/35 ,  G02F2/02

CPC分类号： G02F1/3534 ,  G02F1/39

摘要： A system and method for improving conversion efficiency of a difference frequency generator (DFG) and/or for outputting a desired shape of the output signal, where the method includes providing a pump source, modifying the pump pulse temporal shape for optimal DFG conversion efficiency, and providing the modified pump pulse to the DFG. The pump source may be, for example, a MOPA laser or a diode or any other suitable source. In one embodiment, the pump pulse shape is modified such that an initial gain within the DFG is high, followed by a lower level signal for efficient conversion within the DFG. An example of such a shape is a double square pulse. Other configurations are possible as well such as a single rectangular pulse shape.

摘要翻译： 一种用于提高差分频率发生器（DFG）的转换效率和/或用于输出所需形状的输出信号的系统和方法，其中所述方法包括提供泵浦源，修改泵浦脉冲时间形状以获得最佳的DFG转换效率， 并向DFG提供改进的泵浦脉冲。 泵源可以是例如MOPA激光器或二极管或任何其它合适的源。 在一个实施例中，泵浦脉冲形状被修改为使得DFG内的初始增益为高，随后为DFG内的有效转换的较低电平信号。 这种形状的一个例子是双平方脉冲。 其他配置也是可能的，例如单个矩形脉冲形状。

公开(公告)号：US20120134013A1

公开(公告)日：2012-05-31

申请号：US13389032

申请日：2010-08-05

申请人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

发明人： Ady Arie ,  Zachary Sacks ,  Ofer Gayer ,  Gil Porat

IPC分类号： G02F1/39

CPC分类号： G02F1/39 ,  G02F1/3534 ,  G02F2001/3548 ,  H01S3/109

摘要： A cA crystal configured to change a frequency of a laser through an optical parametric oscillation (OPO) process and a difference frequency generation (DFG) process is provides. The crystal includes: an OPO/DFG segment that is quasi-periodically poled to yield (i) a conversion of a pump light applied thereto, to a first signal and an idler, and (ii) a conversion of a first signal applied thereto, to a second signal and to an idler signal, by phase-matching a difference frequency generation (DFG) process and an OPO process therein simultaneously, wherein the pump light has a frequency that equals a sum of a frequency of the first signal and a frequency of the idler and wherein the frequency of the first signal equals a sum of a frequency of the second signal and the frequency of idler.

摘要翻译： 提供了通过光学参数振荡（OPO）处理和差频产生（DFG）处理来改变激光器频率的cA晶体。 晶体包括：准周期极化的OPO / DFG段，以产生（i）施加到其上的泵浦光的转换为第一信号和惰轮，以及（ii）施加到其上的第一信号的转换， 通过将差频生成（DFG）处理和OPO处理相互匹配同时进行第二信号和空闲信号，其中泵浦光具有等于第一信号的频率和频率之和的频率 并且其中所述第一信号的频率等于所述第二信号的频率和所述惰轮频率的和。

公开(公告)号：US20110242645A1

公开(公告)日：2011-10-06

申请号：US13120928

申请日：2009-09-15

申请人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

发明人： Zachary Sacks ,  Ady Arie ,  Ofer Gayer

IPC分类号： G02F1/39

CPC分类号： G02F1/3534 ,  G02F1/39

摘要： A system and method for improving conversion efficiency of a difference frequency generator (DFG) and/or for outputting a desired shape of the output signal, where the method includes providing a pump source, modifying the pump pulse temporal shape for optimal DFG conversion efficiency, and providing the modified pump pulse to the DFG. The pump source may be, for example, a MOPA laser or a diode or any other suitable source. In one embodiment, the pump pulse shape is modified such that an initial gain within the DFG is high, followed by a lower level signal for efficient conversion within the DFG. An example of such a shape is a double square pulse. Other configurations are possible as well such as a single rectangular pulse shape.

摘要翻译： 一种用于提高差分频率发生器（DFG）的转换效率和/或用于输出所需形状的输出信号的系统和方法，其中所述方法包括提供泵浦源，修改泵浦脉冲时间形状以获得最佳的DFG转换效率， 并向DFG提供改进的泵浦脉冲。 泵源可以是例如MOPA激光器或二极管或任何其它合适的源。 在一个实施例中，泵浦脉冲形状被修改为使得DFG内的初始增益为高，随后为DFG内的有效转换的较低电平信号。 这种形状的一个例子是双平方脉冲。 其他配置也是可能的，例如单个矩形脉冲形状。