Hamamatsu-Photonics K.k.

Keisuke Nagura

Mitsutoshi Sugiya

Shigeru Suzuki

Kenzo Hayatsu

Kento Matsushima

According to a method for producing a radiation detection unit, in a first step, a side portion of a first radiation detection module and a first protrusion are abutted. In a second step, a second radiation detection module is arranged within a region from which the first protrusion has been removed, and a side portion of the second radiation detection module and a second protrusion are abutted, after the first step. In a third step, each of the mounting portion of the first radiation detection module and the mounting portion of the second radiation detection module is arranged opposing a frame while spaced apart from the frame, and each of the first radiation detection module and the second radiation detection module is mounted on the frame.

Production method for radiation detection unit

An object is to prevent occurrence of an insensitive zone to radiation in parallel arrangement of multiple units. This radiation detecting unitis provided with a PD arrayincluding a plurality of PD elementsarrayed opposite to a scintillatorand output electrode padsarrayed corresponding to the PD elements, integrated circuitsfor processing signals from the PD elements, a flexible substratefor mounting of the PD arrayand integrated circuits, and a radiation shield plateprovided opposite to the PD arraywith the flexible substratein between and formed so that ends thereofare located inside the PD array; the output electrode padshave an array pitch made shorter than that of PD elements; the flexible substrateis folded along the endsat intermediate regions Abetween mounting regions of the PD arrayand integrated circuits, whereby the integrated circuitsare arranged on the opposite side to the PD elementswith the radiation shield platein between.

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Hamamatsu, Japan

Keisuke Nagura