產(chǎn)品介紹
Core Scanner芯體密度X-光掃描成像與元素分析系統(tǒng)結(jié)合了X-射線熒光分析(X-ray Fluorescence)、數(shù)字X-射線密度成像（digital x-ray micro radiography）和高分辨率數(shù)字光學(xué)成像技術(shù)，實(shí)現(xiàn)多種樣芯的非接觸式測(cè)量，用于土壤、土芯、海洋或湖底的沉積物、巖石、洞穴堆積物（如鐘乳石），泥炭塊、巖芯等的密度和元素分析。可測(cè)量的元素有Al、Si、S、Cl、K、Ca、Cr、Mn、Fe、Cu、Zn、As、Hg、Pb等，其中許多可測(cè)至痕量水平以下，對(duì)靈敏度和分辨率要求較高的研究尤其適合。系統(tǒng)可應(yīng)用于土壤分析，環(huán)境污染調(diào)查、地質(zhì)勘探、海洋研究等領(lǐng)域。
原理：
土壤元素分析系統(tǒng)采用XRF、數(shù)字X-射線密度成像和高分辨率數(shù)字光學(xué)成像技術(shù)，非破壞性測(cè)量，獲得樣品高分辨率的數(shù)碼圖像，然后利用系統(tǒng)軟件對(duì)所得圖像信息進(jìn)行分析。
系統(tǒng)特點(diǎn)：
◎ 結(jié)合了XRF、數(shù)字X-射線密度成像、數(shù)字光學(xué)成像技術(shù)
◎ X射線熒光分析，提供Al以上的多種元素的濃度數(shù)據(jù)（Al – U）
◎ 數(shù)字X射線密度成像用于樣品的高級(jí)分析
◎ 可掃描分析土芯等樣品
◎ 實(shí)現(xiàn)多種元素同時(shí)檢測(cè)
◎ XRF靈敏度達(dá)PPM級(jí)
◎ 檢測(cè)效率高，10分鐘即可完成1米樣品的掃描分析
◎ 穩(wěn)定，可靠，重現(xiàn)性好
◎ 靈敏度和精確度高
◎ 非接觸式分析，不破壞樣品
◎ 可超負(fù)荷工作，每年可工作幾千小時(shí)
系統(tǒng)組成：
X-射線發(fā)生器，X-射線管，X-射線安全防護(hù)系統(tǒng)，X-光束準(zhǔn)直儀，機(jī)動(dòng)樣品臺(tái)及樣芯固定裝置，U-型樣品槽，X-射線成像檢測(cè)系統(tǒng)，XRF元素分析儀，光學(xué)攝像頭，2臺(tái)工作站，軟件及驅(qū)動(dòng)，X-光箔，UPS（不間斷電源），激光彩色打印機(jī)，設(shè)備冷卻裝置。
技術(shù)指標(biāo)：
1、 測(cè)量原理：X-射線熒光分析、數(shù)字X-射線成像技術(shù)、高分辨率光學(xué)成像技術(shù)。
2、 分辨率：X-射線：扁平光管光束0.2x20mm，其中0.2對(duì)應(yīng)沉積物的長(zhǎng)度方向。
X-射線熒光光束：常規(guī)分辨率0.2mm，分辨率0.1mm（需定制）
X-射線成像分析，分辨率20μm
3、X-射線發(fā)生器功率：60 kV，55 mA，功率3.3 kW
4、X-射線管：鉻管或鉬管，功率2.2 kW（鉻管）和3.0 kW（鉬管），質(zhì)保壽命為2000h，期望壽命為3000~5000h。
5、X-射線檢測(cè)器：用于X-射線數(shù)字密度成像，含有1000個(gè)感應(yīng)元件，每個(gè)感應(yīng)元件拍攝20μm寬的樣品圖像，動(dòng)態(tài)范圍達(dá)數(shù)十倍，樣品成像厚度60mm。
6、SDD硅漂移檢測(cè)器：電子冷卻，用于XRF檢測(cè)，可以記錄Al – U的任何元素的標(biāo)識(shí)輻射，5.9 keV時(shí)，能量分辨率大約140 eV。單次掃描即可完成所有元素的檢測(cè)。
7、增強(qiáng)型光學(xué)成像單元：3x16bit數(shù)字RGB彩色CCD光學(xué)攝像頭和光學(xué)圖像信息采集軟件，采用正交偏振濾光片技術(shù)和眩光降低技術(shù)，可以獲得非常高的圖像質(zhì)量。攝像頭光學(xué)分辨率為50μm，以兩種模式掃描，快速模式（分辨率200μm）和高分辨率模式（分辨率50μm），掃描圖像寬約100mm。
8、X-射線防護(hù)裝置：測(cè)量過(guò)程中，打開(kāi)儀器時(shí)，X-射線自動(dòng)關(guān)閉。
9、樣品臺(tái)：自動(dòng)樣品臺(tái)長(zhǎng)1800mm，最小步進(jìn)20μm，溫度穩(wěn)定時(shí)重現(xiàn)性好。
10、樣品槽：樣品槽帶手動(dòng)調(diào)節(jié)裝置，可在據(jù)樣品橫截面中心線的五個(gè)不同的固定位置調(diào)整。五個(gè)位置是：中心，距中心10mm (左和右)，距中心20mm (左和右)。
11、樣品大小和形狀：
1） 有效測(cè)量長(zhǎng)度最長(zhǎng)1750mm , 寬度120mm
2） 劈開(kāi)的、水平放置的沉積物樣品，外徑可達(dá)120mm
3） 厚板狀沉積物樣品，厚度1-60mm, 寬度120mm
4） U形樣品槽
5） 木材生長(zhǎng)錐樣品、平板樣品或圓盤樣品，厚度1-60mm, 寬度120mm
6） 洞穴堆積物（如鐘乳石）樣品，厚度1-50mm, 寬度120mm
12、工作站：負(fù)責(zé)掃描控制及數(shù)據(jù)處理軟件。包括Core Scanner Navigator（掃描控制軟件）、Qspec（XRF光譜分析和元素濃度計(jì)算軟件）、ReDiCore（數(shù)據(jù)顯示軟件）及所有其他硬件驅(qū)動(dòng)程序。
13、冷卻裝置：冷卻水泵
14、電源：230v/50Hz/三相，建議配UPS（選配）
15、規(guī)格：4500×820×1570mm
16、重量：800kg
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| 深海沉積物樣芯，從上到下曲線代表元素的濃度變化：Fe, Ca, K, Si, Al | | |
應(yīng)用案例：
英國(guó)海洋中心和南安普頓大學(xué)地球化學(xué)領(lǐng)域科研人員，將土壤元素分析系統(tǒng)應(yīng)用于東部地中海沉積泥的研究分析。
2012年發(fā)表的部分參考文獻(xiàn)：
1. SR-12-01 Aarnes I., BjuneA.E., Birks H.H., Balascio N.L., Bakke J., Blaauw M., Vegetation responses to rapid climatic changes during the last deglaciation 13,500–8,000 years ago on southwest Andøya, arctic Norway. Veget Hist Archaeobot v21 p17-35 (2012) DOI 10.1007/s00334-011-0320-4
2. SR-12-02 Rodysill J.R., Russell J.M., Bijaksana S., Brown E.T., Safiuddin L-O-, Eggermont H., A paleolimnological record of rainfall and drought from East Java, Indonesia during the last 1,400 years. J of Paleolimnology v47 p125-139 (2012) DOI 10.1007/s10933-011-9564-3
3. SR-12-03 Hubert-Ferrari A., Avsar U., El Ouahbi M., Lepoint G., Fagel N., Paleoseismic record obtained by coring a lacustrine sag-pond along the North Anatolian Fault (Turkey). Annals of Geophysics (2012)
4. SR-12-04 Giguet-Covex C., Arnaud F., Enters D., Poulenard J., Millet L., Francus P., David F., Rey P.-J., Wilhelm B., Delannoy J.-J., Frequency and intensity of high-altitude floods over the last 3.5 ka in northwestern French Alps (Lake Anterne). Quaternary Research v77 p12–22 (2012)
5. SR-12-05 Vasskog K., Paasche Ø., Nesje A., Boyle J.F., Birks H.J.B., A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier. Quaternary Research v77 p192–204 (2012)
6. SR-12-06 Stevenson C.J., Talling P.J., Wynna R.B., Masson D.G., Hunt J.E., Frenz M., Akhmetzhanhov A., Cronin B.T., The flows that left no trace: Very large-volume turbidity currents that bypassed sediment through submarine channels without eroding the sea floor. Marine and Petroleum Geology xxx p1-20 Available online 13 February (2012)
7. SR-12-07 Liang L., Sun Y., Yao Z., Liu Y., Wu F., Evaluation of high-resolution elemental analyses of Chinese loess deposits measured by X-ray fluorescence core scanner. Catena v92 p75–82 (2012)
8. SR-12-08 Kasper T., Haberzettl T., Doberschütz S., Daut G., Wang J., Zhu L., Nowaczyk N., Mäusbacher R., Indian Ocean Summer Monsoon (IOSM)-dynamics within the past 4 ka recorded in the sediments of Lake Nam Co, central Tibetan Plateau (China). Quaternary Science Reviews v39 p73-85 (2012)
9. SR-12-09 Gill J.L., Williams J.W., Jackson S.T., Donnelly J.P., Schellinger G.C., Climatic and megaherbivory controls on late-glacial vegetation dynamics: a new, high-resolution, multi-proxy record from Silver Lake, Ohio. Quaternary Science Reviews v34 p66-80 (2012)
10. SR-12-10 Matthews N.E., Smith V.C., Costa A., Durant A.D., Pyle D.M., Pearce N.J.G., Ultra-distal tephra deposits from super-eruptions: Examples from Toba, Indonesia and Taupo Volcanic Zone, New Zealand. Quaternary International v258 p54-79 (2012)
11. SR-12-11 Ojala A.E.K., Francus P., Zolitschka B., Besonen M., Lamoureux S.F., Characteristics of sedimentary varve chronologies - A review. Quaternary Science Reviews v43 p45-60 (2012)
12. SR-12-12 Wilhelm B., Arnaud F., Sabatier P., Crouzet C., Brisset E., Chaumillon E., Disnar J.-R., Guiter F., Malet E., Reyss J.-L., Tachikawa K., Bard E.d, Delannoy J.-J., 1400 yr of extreme precipitation patterns over the Mediterranean French Alps and possible forcing mechanisms. Quaternary Research xxx xxx–xxx (2012) Available online 4 April
13. SR-12-13 Wagner B., Aufgebauer A., Vogel H., Zanchetta G., Sulpizio R., Magret Damaschke M., Late Pleistocene and Holocene contourite drift in Lake Prespa (Albania/F.Y.R. of Macedonia/Greece). Quaternary International 1-10 (2012)
14. SR-12-14 May S.M., Vött A., Brückner H., Grapmayer R., Handl M., Wennrich V., The Lefkada barrier and beachrock system (NW Greece) — Controls on coastal evolution and the significance of extreme wave events. Geomorphology v139–140 p330–347 (2012)
15. SR-12-15 Bennike O., Wagner B., Deglaciation chronology, sea-level changes and environmental changes from Holocene lake sediments of Germania Havn Sø, Sabine Ø, northeast Greenland. Quaternary Research xxx xxx–xxx (2012)
16. SR-12-16 Aufgebauer A., Panagiotopoulos K., Wagner B., Schaebitz F., A. Viehberg F.A., Vogel H., Zanchetta G., Sulpizio R., Leng M.J., Damaschke M., Climate and environmental change in the Balkans over the last 17 ka recorded in sediments from Lake Prespa (Albania/F.Y.R. of Macedonia/Greece). Quaternary International xxx (2012) 1-14 (2012)
17. SR-12-17 Georgiopoulou A., Benetti S., Shannon P.M., Haughton P.D.W., McCarron S.. Gravity Flow Deposits in the Deep Rockall Trough, Northeast Atlantic. Chapter 62 (2012)
18. SR-12-18 Pompeani D.P., Steinman B.A., Abbott M.B., A sedimentary and geochemical record of water-level changes from Rantin Lake, Yukon, Canada. J Paleolimnol v48 no1 p147-158 (2012), DOI 10.1007/s10933-012-9602-9
19. SR-12-19 Camill P., Umbanhowar Jr. C.E., Geiss C., Hobbs W.O., Edlund M.B., Cook Shinneman A., Dorale J.A., Lynch J., Holocene climate change and landscape development from a low-Arctic tundra lake in the western Hudson Bay region of Manitoba, Canada. J Paleolimnol v48 no1 p175-192 (2012), DOI 10.1007/s10933-012-9619-0
20. SR-12-20 Croudace I.W., Warwick P.E., Morris J.E., Evidence for the Preservation of Technogenic Tritiated Organic Compounds in an Estuarine Sedimentary Environment. Environ. Sci. Technol. XXXX, XXX, XXX−XXX (2012), dx.doi.org/10.1021/es204247f
21. SR-12-21 Vasskog K., Waldmann N., Nesje A., Chapron E., Ariztegui D., New insight into the ~8100 cal yr BP catastrophic Storegga tsunami event from western Norway. (2012)
22. SR-12-22 Roberts N., Moreno A., Valero-Garcés B.L., Corella J.P., Jones M., Allcock S., Woodbridge J., Morellón M., Luterbacher J., Xoplaki E., Türkeş M., Palaeolimnological evidence for an east–west climate see-saw in the Mediterranean since AD 900. Global and Planetary Change 84-85 (2012) 23–34 (2012)
23. SR-12-23 Vasskog K., Paasche Ø., Nesje A., Boyle J.F., Birks H.J.B., A new approach for reconstructing glacier variability based on lake sediments recording input from more than one glacier. Quaternary Research v77 no1 p192-204 (2012)
24. WR-12-1 Zubizarreta-Gerendiain A., Gort-Oromi J., Mehtätalo L., Peltola H., Venäläinen A., Pulkkinen P. Effects of cambial age, clone and climatic factors on ring width and ring density in Norway spruce (Picea abies) in southeastern Finland. Forest Ecology and Management (2012) v263 p9-16
25. WR-12-2 Starheim C.C.A., Smith D.J., Prowse T.D. Dendrohydroclimate reconstructions of July–August runoff for two nival-regime rivers in west central British Columbia. Hydrol. Process. (2012), DOI: 10.1002/hyp.9257
26. WR-12-3 Helama S., Be´gin Y., Vartiainen M., Peltola H., Kolström T., Meriläinen J. Quantifications of dendrochronological information from contrasting microdensitometric measuring circumstances of experimental wood samples. Applied Radiation and Isotopes v70 p1014–1023 (2012)
27. WR-12-4 Fries A. Genetic parameters, genetic gain and correlated responses in growth, fibre dimensions and wood density in a Scots pine breeding population. Annals of Forest Science (2012), DOI 10.1007/s13595-012-0202-7
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