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

1.宇宙射线电离分量随海拔的分布我在珠穆朗玛峰及其邻近地区（低地磁纬度地区）获得了宇宙射线电离分量1cm剂量当量率的实测数据。如果宇宙射线电离组分在Z高度（单位为km）的1cm剂量当量率表示为H_i(Z)（单位为nSv/h），则近似表示为：H_i(Z)=20.3 exp(0.489Z)2。宇宙射线中子分量随海拔的分布我在珠穆朗玛峰及邻近地区（低地磁纬度地区）获得了宇宙射线中子分量1cm剂量当量率的实测资料。在Z海拔高度（单位为kim），宇宙射线中子组分的1cm剂量当量率表示为H_n(Z)（单位为nSv/h），其近似表示为：H_n(Z)=4.00 exp（0.616Z）。此外，在高原夏尔巴人的石制建筑中，其近似表示为：H_n(Z)=3.11 exp(0.628Z)3。地球伽马射线的变化我获得了珠穆朗玛峰及其邻近地区（卢卡与卡拉帕塔之间、卢卡与高京峰之间）地球伽马射线1cm剂量当量率变化的实际调查数据。此外，从伽马射线的能量分析中，我得到了1厘米的剂量当量率，以U系列，Th系列和钾-40。这是一个庞大的实际调查数据，很难简单介绍。这是世界上第一个有价值的实际调查数据，有必要与矿物学专家合作对实际调查数据进行分析。未来展望除珠穆朗玛峰地区外，喜马拉雅地区有望积累地球伽马射线实测资料，低、高地磁纬度地区有望积累宇宙射线实测资料。

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.