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PINS3-CW-G2將的化學(xué)品分析識(shí)別技術(shù)與業(yè)界的ORTEC trans-SPEC-N高純鍺平臺(tái)相結(jié)合。 
ORTEC has developed the PINS3-CW-G2 Portable Isotopic Neutron Spectroscopy (PINS) Non-Destructive Assay System. This new system is lighter, more portable, easier to set up, and easier to deploy on missions.
The ORTEC PINS3-CW-G2 analyzes and provides on-site identification information about the chemical contents inside munitions or other unopened containers without the need to disassemble or take a physical sample. It is widely deployed by military and intelligence organizations around the world to identify the contents of "suspect" packages.
The PINS3-CW-G2 is simple and easy to use with the addition of the ORTEC trans-SPEC-N Mechanically Cooled High Purity Germanium Spectrometer. The trans-SPEC-N has been specifically designed and tested to replace the detectors in previous generation PINS systems which used liquid nitrogen to cool the detector. The PINS3-CW-G2 provides significant advantages over previous liquid nitrogen-based systems by eliminating the logistical and safety problems associated with the storage and transport of liquid nitrogen, equipment handling, maintenance, and training.
The PINS3-CW-G2 incorporates the miniGEN D-D Neutron Generator which is approximately 66% smaller, 66% lighter, and uses 60% less power than the previous generator.
The PINS3-CW-G2 stａnd is made of a lightweight, carbon fiber that makes it >50% lighter than the previous stand.
The complete PINS3-CW-G2 system packs into 2 Pelican-style cases.
Benefits of the PINS3-CW-G2 System
The miniGen Neutron Generator is a derivative of the popular P 385 neutron generator in a more compact format, with the DNC III control interface. The miniGen is 66% lighter and occupies 60% less space. All input and output signals are consolidated into two connectors on the front face.
The integrated front connectors have inputs for control of advanced functions such as a run timer, data logging, pulse counting, stand-by, and a facility interlock. The connectors have outputs for the source pulse and user adjustable Delay TTL signals.
The new design combines the accelerator head and control electronics into a single, compact unit.
The ORTEC PINS3-CW-G2 analyzes and provides on-site identification information about the chemical contents inside munitions or other unopened containers without the need to disassemble or take a physical sample. It is widely deployed by military and intelligence organizations around the world to identify the contents of "suspect" packages.
The PINS3-CW-G2 is simple and easy to use with the addition of the ORTEC trans-SPEC-N Mechanically Cooled High Purity Germanium Spectrometer. The trans-SPEC-N has been specifically designed and tested to replace the detectors in previous generation PINS systems which used liquid nitrogen to cool the detector. The PINS3-CW-G2 provides significant advantages over previous liquid nitrogen-based systems by eliminating the logistical and safety problems associated with the storage and transport of liquid nitrogen, equipment handling, maintenance, and training.
The PINS3-CW-G2 incorporates the miniGEN D-D Neutron Generator which is approximately 66% smaller, 66% lighter, and uses 60% less power than the previous generator.
The PINS3-CW-G2 stａnd is made of a lightweight, carbon fiber that makes it >50% lighter than the previous stand.
The complete PINS3-CW-G2 system packs into 2 Pelican-style cases.
Benefits of the PINS3-CW-G2 System
- Users have limited exposure to the material of interest.
- Users do not have to handle hazardous materials such as LN2.
- Simple, fast setup and operation.
- Longer operational times require less battery changes.
- Prepackaged in 2 Pelican Cases for easy shipping and handling.
- Reduces risk to the public, workers and emergency response personnel by rapidly obtaining detailed information and distributing it to the appropriate authorities and responders.
- Optional Detective software will allow the trans-SPEC-N to operate as a DETDX-100T-GP.
PINS概述
便攜式同位素核譜分析（PINS）化學(xué)品識(shí)別系統(tǒng)非破壞性地識(shí)別危險(xiǎn)化合物和混合物。不需要打開(kāi)或接觸測(cè)試對(duì)象，從而大大提高了安全性。如圖所示，PINS用中子探測(cè)測(cè)試對(duì)象，中子激發(fā)原子核內(nèi)部，從而使激發(fā)的原子核產(chǎn)生伽馬射線。每種化學(xué)元素的伽馬射線都具有的能量強(qiáng)度模式或譜，因此，通過(guò)分析伽馬射線譜，PINS軟件可以識(shí)別測(cè)試對(duì)象內(nèi)的化學(xué)元素并確定該對(duì)象是否包含化學(xué)戰(zhàn)劑、填充物（如沙子）或產(chǎn)生煙霧的化學(xué)物質(zhì)。
工作原理
PINS3-CW-G2使用由中子發(fā)生器產(chǎn)生的中子來(lái)激發(fā)被測(cè)對(duì)象內(nèi)的原子核。中子發(fā)生器內(nèi)氘原子（D + D）的融合將導(dǎo)致形成He-3離子和具有約2.5 MeV動(dòng)能的中子。標(biāo)準(zhǔn)的PINS3-CW-G2中子發(fā)生器每秒可產(chǎn)生一千萬(wàn)個(gè)中子。發(fā)生器在各個(gè)方向上發(fā)射中子，每秒約有1000個(gè)中子撞擊每平方厘米的測(cè)試對(duì)象的表面。由于中子是一種穿透力的輻射形式，因此大多數(shù)中子將穿過(guò)測(cè)試對(duì)象外殼并與內(nèi)部的化學(xué)物質(zhì)相互作用。
來(lái)自發(fā)生器的中子通過(guò)非彈性散射或中子俘獲來(lái)激發(fā)它們遇到的原子核。在任何一種情況下，激發(fā)的核都會(huì)通過(guò)發(fā)射伽馬射線衰減到它們的基態(tài)，伽馬射線是發(fā)射核的特征。也就是說(shuō)，伽馬射線能量和強(qiáng)度從一種核到另一種核通常變化很大。例如，氫核在中子轟擊下發(fā)射2.2-MeV伽馬射線，而磷核發(fā)射1.3-MeV伽馬射線。
中子誘發(fā)的伽馬射線由高純鍺（HPGe）譜儀測(cè)量，并由譜儀電子設(shè)備分類成譜。通過(guò)分析譜，可以確定由中子激發(fā)的化學(xué)元素以及識(shí)別測(cè)試對(duì)象內(nèi)的化學(xué)物質(zhì)。
運(yùn)行PINS
PINS3-CW-G2專為現(xiàn)場(chǎng)部署而開(kāi)發(fā)，便攜又堅(jiān)固。其組件包括帶集成多通道分析儀的機(jī)械冷卻譜儀、中子發(fā)生器、探測(cè)器支架和屏蔽罩以及用于提供用戶界面的筆記本電腦。定制軟件在收集數(shù)據(jù)時(shí)實(shí)時(shí)顯示數(shù)據(jù)，并提供強(qiáng)大的監(jiān)控和分析選項(xiàng)。
筆記本電腦用作PINS3-CW-G2控制面板。電腦允許用戶初始化儀器、啟動(dòng)和停止伽馬射線譜儀的數(shù)據(jù)采集、顯示和分析產(chǎn)生的伽馬射線譜。連接電纜長(zhǎng)82英尺（25米），可使電腦與輻射隔離區(qū)保持安全距離，并提供電腦、伽馬射線譜儀和中子發(fā)生器之間的通信。
Trans-SPEC-N機(jī)械冷卻高純鍺譜儀
與先前PINS系統(tǒng)中使用的液氮冷卻HPGe譜儀不同，PINS3-CW-G2采用trans-SPEC-N機(jī)械冷卻HPGe譜儀，不需要液氮。用于冷卻譜儀探測(cè)器所需的電能約為30瓦。trans-SPEC-N鋰離子電池可使探測(cè)器保持冷卻10至12小時(shí)，外部電池支持“熱插拔”，以便長(zhǎng)時(shí)間在現(xiàn)場(chǎng)使用儀器。trans-SPEC-N提供靈活的模塊化解決方案，支持現(xiàn)場(chǎng)檢測(cè)化學(xué)品，具有以下特點(diǎn)：
- 無(wú)LN2 - 微型、高可靠性、“可運(yùn)行”的斯特林循環(huán)制冷器無(wú)需液氮；探測(cè)器元件封裝在高可靠性、低損耗、全金屬密封的低溫恒溫器內(nèi)。
- 高靈敏度 - 大型（>50％相對(duì)效率）HPGe探測(cè)器。
- 高穩(wěn)定性 - 數(shù)字電子設(shè)備為惡劣條件下的棘手分析提供了解決方案。
- 明亮和清晰 - VGA分辨率顯示與觸摸感應(yīng)操作屏。
- 一體化集成設(shè)計(jì) - 堅(jiān)固緊湊、無(wú)需互連 - 易于安裝和使用。
- 智能 - 九個(gè)感興趣區(qū)域（ROI）的核素識(shí)別和活度計(jì)算。
- 可靠連接 - USB 2.0和無(wú)線。
- 802.11通信、內(nèi)置GPS和采集譜的安全數(shù)字輸入/輸出（SDIO）存儲(chǔ)。
- 靈活 - 可以使用各種電源，包括內(nèi)置電池、輔助外部電池、汽車電池（任何12 V DC）和線路電源；可自動(dòng)進(jìn)行切換。
The miniGen Neutron Generator is a derivative of the popular P 385 neutron generator in a more compact format, with the DNC III control interface. The miniGen is 66% lighter and occupies 60% less space. All input and output signals are consolidated into two connectors on the front face.
The integrated front connectors have inputs for control of advanced functions such as a run timer, data logging, pulse counting, stand-by, and a facility interlock. The connectors have outputs for the source pulse and user adjustable Delay TTL signals.
The new design combines the accelerator head and control electronics into a single, compact unit.
化學(xué)品的自動(dòng)分析
PINS數(shù)據(jù)采集程序記錄并顯示來(lái)自trans-SPEC-N的譜測(cè)量。它還可分析每10秒記錄的譜、擬合感興趣的峰值、重新校準(zhǔn)能量刻度并進(jìn)行化學(xué)品分析。新化學(xué)品分析方法基于所示決策樹(shù)邏輯，可識(shí)別被測(cè)物體內(nèi)的化學(xué)物質(zhì)。新概率方法追蹤決策樹(shù)中的每條路徑，并為每種可能含有的化學(xué)品打分。得分的化學(xué)品被選為所含化學(xué)品。
新化學(xué)品分析方法更快、更準(zhǔn)確，而且更容易擴(kuò)充PINS可自動(dòng)識(shí)別的化學(xué)品清單。目前，PINS自動(dòng)分析軟件可識(shí)別以下化學(xué)品。
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