| 講演要旨(和文) | | 宇宙線ミュー粒子利用した地盤探査システムを開発するため,計測器の検討と基礎実験を実施した.宇宙線ミュー粒子を利用した地盤探査システムの概要については既に報告してある.ミュー粒子の検出器の大きさと二つの検出器間の距離により,空間的な分解能と探査の効率が決まる.既報告においても試作機を製作したが,そのときの口径は35cm・二つの検出器間の距離は2mであった.本報告では機器の最適化を図るため,口径と検出器間距離を小さくしたものを2台製作した.ひとつは口径24.5cm・検出器間距離1.4mのもの,もうひとつは口径17.5cm・検出器間距離1mのものである.これら3つの試作機の性能確認を行うため,空気中にて校正試験を行った.その結果,密度の決定精度を向上させることができた.さらに採石場跡地でデータを取得し,採石場の上部の地形をミュー粒子により計測できることが示された. |
|
|
| | 講演要旨(英文) | | We carried out examination and the fundamental experiment to develop the geophysical exploration system using cosmic ray muons. It is already reported about the concept of the system which used cosmic ray muons. Spatial resolution and the efficiency of the exploration are restricted by the size of the detector and the distance between two detectors. We produced the prototype in the existing report as for the diameter was 35cm and the distance between two detectors was 2m. We produced two prototypes to miniaturize the diameter and the distance between detectors. The one prototype of diameter and distance between two detectors are 24.5cm and 1.4m respectively. The other prototype diameter and the distance between two detectors are 17.5cm and 1m respectively. We performed the calibration testing in the open air to confirm the performance of these three prototypes. We improved the precision of the density by the calibration testing. Furthermore, we acquired the data in quarry ruins, and it was shown the upper topography of the quarry. |
|
|
|
| |
|