JP7463374B2 - 土壌炭素地図作成のための中性子ガンマ線分析の走査モードアプリケーション - Google Patents
土壌炭素地図作成のための中性子ガンマ線分析の走査モードアプリケーション Download PDFInfo
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- JP7463374B2 JP7463374B2 JP2021532066A JP2021532066A JP7463374B2 JP 7463374 B2 JP7463374 B2 JP 7463374B2 JP 2021532066 A JP2021532066 A JP 2021532066A JP 2021532066 A JP2021532066 A JP 2021532066A JP 7463374 B2 JP7463374 B2 JP 7463374B2
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- soil
- land
- gamma ray
- soil sample
- spectrum
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- 239000002689 soil Substances 0.000 title claims description 133
- 230000005251 gamma ray Effects 0.000 title claims description 34
- 229910052799 carbon Inorganic materials 0.000 title claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 20
- 238000004458 analytical method Methods 0.000 title claims description 18
- 238000013507 mapping Methods 0.000 title claims description 5
- 238000000034 method Methods 0.000 claims description 50
- 238000012545 processing Methods 0.000 claims description 50
- 238000001228 spectrum Methods 0.000 claims description 45
- 229910052710 silicon Inorganic materials 0.000 claims description 30
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 27
- 239000010703 silicon Substances 0.000 claims description 27
- 238000000084 gamma-ray spectrum Methods 0.000 claims description 26
- 229910052700 potassium Inorganic materials 0.000 claims description 25
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 23
- 239000011591 potassium Substances 0.000 claims description 23
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- 239000001257 hydrogen Substances 0.000 claims description 15
- 238000005259 measurement Methods 0.000 claims description 15
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 11
- 230000003595 spectral effect Effects 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000007405 data analysis Methods 0.000 claims description 5
- 239000000460 chlorine Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 229910052801 chlorine Inorganic materials 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 39
- 238000010586 diagram Methods 0.000 description 27
- 230000008569 process Effects 0.000 description 22
- 239000000463 material Substances 0.000 description 8
- 230000004044 response Effects 0.000 description 7
- 238000005192 partition Methods 0.000 description 5
- 238000004856 soil analysis Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- 238000009877 rendering Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000000921 elemental analysis Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000013480 data collection Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 1
- 210000003484 anatomy Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 229910052805 deuterium Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 235000021232 nutrient availability Nutrition 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 150000003112 potassium compounds Chemical class 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000005258 radioactive decay Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052722 tritium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Life Sciences & Earth Sciences (AREA)
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- High Energy & Nuclear Physics (AREA)
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- Engineering & Computer Science (AREA)
- Soil Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
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Description
本出願は、参照により開示全体が本明細書に組み込まれている、2018年12月7日に出願された米国仮出願第62/776,822号の、米国特許法第119(e)条に基づく利益を主張する。
netINSr=Σ3netINSr,i
(3)
のように数式(3)を使用して、それぞれのr番目のレコードについての正味INSスペクトル(netINSr)を算出することができる。
Kw%=0.15・PA1.46
(15)
が成立する。
102 中性子発生デバイス
104 ガンマ線検出器
106 分割電子機器
110 処理ユニット
112 全地球測位システム(GPS)デバイス
114 構造
118 中性子放出
120 土地
122 土壌
124 土壌サンプル
202 トレーラー
206 モータービークル
302 領域
306 部分
308 アスファルト道路
310 重心
312 中点
600 例示的な図
602 半球
606 単位体積
608 中心
700 例示的な図
702 第1の走査地
704 区画
800 例示的な図
802 炭素含有量分布
900 例示的な図
902 ケイ素含有量分布
908 ケイ素分布図
1000 例示的な地図
1002、1102 炭素分布
1004 第2の走査地
1100 例示的な地図
1400 例示的な地図
1402 元素分布
1404 元素番号
1500 例示的な地図
1502 水分測定値
1504 ピーク値
1600 例示的なプロセス
Claims (21)
- 土地の土壌含有量を分析するためのシステムであって、
前記土地の土壌の表面上に配置され、且つ複数の土壌サンプルの各土壌サンプルのガンマ線スペクトルを検出するように構成されたデータ取得ユニットと、
前記土地の1つ以上の外側境界を検出し、且つ1つ以上の前記外側境界内の前記土地の表面積を、ガンマ線スペクトルの検出を開始する前に複数の部分に分割するように構成された処理ユニットであって、複数の前記土壌サンプルは複数の前記部分の各々からの少なくとも1つの土壌サンプルから構成されている、処理ユニットと、
複数の前記部分の各部分内に配置された複数の前記土壌サンプルの、各土壌サンプルの地理座標を検出するように構成されたナビゲーションユニットと、
複数の前記土壌サンプルの各土壌サンプルの検出された前記ガンマ線スペクトルを前記土壌サンプルの前記地理座標に関連付け、検出された前記ガンマ線スペクトルに基づいて各前記土壌サンプル内の少なくとも1つの元素の重量パーセントを判定するように構成されたデータ分析ユニットと、
前記土地の前記土壌内の少なくとも1つの前記元素の濃度を示す地図を生成するように構成された元素含有量図ユニットと、を備えるシステム。 - 前記土壌サンプルは、前記土地の前記表面積の少なくとも5%を累積的に含む、請求項1に記載のシステム。
- 前記土壌サンプルは、前記土地の前記表面積の少なくとも10%を累積的に含む、請求項1に記載のシステム。
- 農地の土壌の含有量を分析するための方法であって、
前記農地の1つ以上の外側境界を検出して、1つ以上の前記外側境界内の前記農地の表面積を複数の部分に分割するステップと、
前記部分のそれぞれの中の少なくとも1つの土壌サンプルを走査して、前記土壌サンプルのガンマ線スペクトルを検出するステップと、
検出された前記スペクトルを、複数の前記部分の各部分内に配置された前記土壌サンプルの地理的位置に関連付けるステップと、
検出された前記スペクトルに基づいて、前記土壌サンプル内の少なくとも1つの元素の量を算出するステップと、
前記農地の各部分内の少なくとも1つの前記元素の量を示す地図を生成するステップと、を含む方法。 - 少なくとも1つの前記元素の量は、炭素(C)、ケイ素(Si)、カリウム(K)、酸素(O)、水素(H)、および塩素(Cl)のうちの少なくとも1つの濃度値を含む、請求項4に記載の方法。
- 各部分は均質な風景を有する、請求項4に記載の方法。
- 走査は、中性子発生装置を有するパルス高速熱中性子システムを使用した走査を含む、請求項4に記載の方法。
- 前記土壌サンプルは、前記農地の前記表面積の少なくとも10%を累積的に含む、請求項4に記載の方法。
- 所定の値に基づいてスペクトルエネルギーを補正するステップをさらに含む、請求項4に記載の方法。
- 土地の土壌の元素含有量を分析するためのシステムであって、
前記土地の土壌の表面上に配置され、且つ少なくとも1つの土壌サンプルのガンマ線スペクトルを収集および検出するように構成されたデータ取得ユニットと、
前記土地の1つ以上の外側境界を検出し、且つ1つ以上の前記外側境界内の前記土地の表面積を、ガンマ線スペクトルの検出を開始する前に複数の部分に分割するように構成された処理ユニットであって、複数の前記土壌サンプルは複数の前記部分の各々からの少なくとも1つの土壌サンプルから構成されている、処理ユニットと、
複数の前記部分の各部分内に配置された複数の前記土壌サンプルの、各土壌サンプルの地理座標を提示するように構成されたナビゲーションユニットと、
収集された前記ガンマ線スペクトルを前記土壌サンプルの前記地理座標に関連付け、前記土壌サンプル内の元素の重量パーセントを算出するように構成されたデータ分析ユニットと、
算出された前記重量パーセントに基づいて、前記土壌サンプル内の少なくとも1つの前記元素の濃度を示す地図を生成するように構成された元素含有量図ユニットと、を備えるシステム。 - 前記データ取得ユニットは、パルス高速熱中性子システムを備える、請求項10に記載のシステム。
- 前記パルス高速熱中性子システムは、中性子発生装置を含む、請求項11に記載のシステム。
- 前記パルス高速熱中性子システムは、ガンマ線検出器をさらに含む、請求項12に記載のシステム。
- 前記データ取得ユニットは、複数の土壌サンプルのガンマ線スペクトルを収集するようにさらに構成され、複数の前記土壌サンプルは、前記土地の表面積の少なくとも10%を累積的に含む、請求項10に記載のシステム。
- 前記分析ユニットは、スペクトルシフトおよび重量パーセント計算器を使用して判定された所定の値に基づいてスペクトルエネルギーを補正するようにさらに構成される、請求項10に記載のシステム。
- スペクトルエネルギーを補正することは、スペクトルをシフトさせ、それによって、複数のスペクトルの各スペクトルについて、前記元素のドミナントピークの重心が前記スペクトルの複数のエネルギーチャネルのうちの1つの同じエネルギーチャネルに関連付けられることを含む、請求項15に記載のシステム。
- 前記分析ユニットは、スペクトルの寿命に基づいて前記重量パーセントを算出するようにさらに構成され、前記スペクトルの前記寿命は、複数の検出器の各検出器の寿命の平均である、請求項10に記載のシステム。
- 前記検出器の前記寿命は、実測時間、入力計数率、および出力計数率に基づく、請求項17に記載のシステム。
- 前記分析ユニットは、算出された前記重量パーセントを2つの互いに近接するレコード間の地理的中点に関連付けるようにさらに構成される、請求項17に記載のシステム。
- 前記濃度は、炭素(C)、ケイ素(Si)、カリウム(K)、酸素(O)、および水素(H)のうちの少なくとも1つの含有量を示す、請求項10に記載のシステム。
- 前記土壌サンプル内の炭素(C)の濃度は、前記土地の一部内で検出される正味スペクトルの平均に基づいて判定され、カリウムの濃度は、前記土壌の中性子照射を使用せずに前記土壌サンプルの自然ガンマ線スペクトルに基づいて判定される、請求項20に記載のシステム。
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