RADIATION MONITOR

• Main Authors: UENO KATSUNOBU, OKADA KOICHI, NAGUMO YASUSHI, HATAKEYAMA SHUICHI, TADOKORO TAKAHIRO, UENO YUICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 27.02.2020
• Subjects: MEASUREMENT OF NUCLEAR OR X-RADIATION; MEASURING; PHYSICS; TESTING

To provide a radiation monitor capable of leveling the energy dependence and the irradiation direction dependence of the sensitivity in the radiation monitor having a phosphor that emits photons by the incident radiation.SOLUTION: A radiation monitor 1 includes a radiation detection section 2 having a phosphor that emits photons to the incident radiation, and a photon transmission section 6 that transmits photons emitted from the phosphor of the radiation detection section 2. The phosphor has a multilayer structure including a first phosphor 3 and a second phosphor 4. Between the first phosphor 3 and the second phosphor 4, the phosphor has a photon absorption layer 5 that absorbs photons emitted from the phosphor.SELECTED DRAWING: Figure 1 【課題】入射した放射線に対して光子を放出する蛍光体を備えた放射線モニタにおける感度のエネルギー依存性及び照射方向依存性を平坦化可能な放射線モニタを提供する。【解決手段】放射線モニタ１は、入射した放射線に対して光子を放出する蛍光体を備えた放射線検知部２と、放射線検知部２の蛍光体から放出された光子を伝送する光子伝送部６と、を備え、蛍光体は第１の蛍光体３と第２の蛍光体４を含んでなる多層構造を有し、第１の蛍光体３と第２の蛍光体４の間に蛍光体から放出された光子を吸収する光子吸収層５を有する。【選択図】図１