INVESTIGATION / STUDY ABOUT ENVIRONMENTAL RADIATIONS IN Mt.EVEREST AND NEIGHBORING AREAS

1.宇宙线电离分量随海拔高度的分布我在珠峰及邻近地区（地磁低纬地区）获得了宇宙线电离分量1厘米剂量当量率的实测数据。在海拔高度Z（单位为km），宇宙线电离成分的1厘米剂量当量率用H_i（Z）（单位为nSv/h）表示，近似表示为：H_i（Z）=20.3 exp（0.489Z）2.宇宙线中子成分随海拔高度的分布我在珠峰及邻近地区（地磁低纬地区）获得了宇宙线中子成分1厘米剂量当量率的实测数据。在海拔高度Z（单位为kim），宇宙射线中子成分的1厘米剂量当量率用H_n（Z）表示（单位为nSv/h），近似表示为：H_n（Z）=4.00 exp（0.616 Z）另外，在一座高山族夏尔巴人的石头建筑中，近似表示为：H_n（Z）=3.11 exp（0.628 Z）3.地球γ射线的变化我在珠峰及邻近地区（Lukla与Kala Patthar之间，Lukla与Gokyo峰之间）获得了地球γ射线1厘米剂量当量率变化的实测数据。另外，从γ射线能量分析中，得到了U系、Th系和钾-40的1cm剂量当量率。这是一个庞大的实际调查数据，很难简单介绍。这是世界上第一次有价值的实际测量数据，有必要与矿物学专家合作对实际测量数据进行分析。4.未来的展望在喜马拉雅山（除珠峰外）地区积累地球伽马射线的实际测量数据，在地磁低纬和高纬地区积累宇宙射线的实际测量数据。

1.Distribution of Cosmic Ray Ionizing Component with AltitudeI got actual survey data of a 1cm dose equivalent rate of ionizing component of cosmic rays in Mt.Everest and neighboring areas (areas at a low geomagnetic latitude). If the 1cm dose equivalent rate of cosmic-ray ionizing components is shown as H_i (Z) (the unit is nSv/h) at the altitude of Z (the unit is km), it is expressed in approximation as follows :H_i(Z)=20.3 exp(0.489Z)2.Distribution of Cosmic Ray Neutron Component with AltitudeI got actual survey data of a 1cm dose equivalent rate of neutron component of cosmic rays in Mt.Everest and neighboring areas (areas at a low geomagnetic latitude). If the 1cm dose equivalent rate of cosmic-ray neutron components is shown as H_n(Z) (the unit is nSv/h) at the altitude of Z (the unit is kim), it is expressed in approximation as follows :H_n(Z)=4.00 exp(0.616Z)In addition, in a stone building of highlands race sherpa, it is expressed in approximation as follows :H_n(Z)=3.11 exp(0.628Z)3.Change of Earth Gamma RaysI got actual survey data of a change of a 1cm dose equivalent rate of earth gamma rays in Mt.Everest and neighboring areas (areas between Lukla and Kala Patthar, areas between Lukla and Gokyo Peak). In addition, from energy analysis of gamma rays, I got 1cm dose equivalent rates to U series, Th series and potassium-40. It is enormous actual survey data and it is difficult to introduce it briefly. It is the first valuable actual survey data in the world, and it is necessary to analyze actual survey data in cooperation with mineralogical experts.4.Future ProspectsAccumulation of actual survey data of earth gamma rays in the Himalayas except Mt.Everest area is expected, and accumulation of actual survey data of cosmic rays in low and high geomagnetic latitude areas is expected.