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FAST快速光子計數(shù)器P7888P7888-2

發(fā)布日期:2022-04-28 點擊率:81

產(chǎn)品介紹


P7888是四通道輸入多事件時間數(shù)字轉(zhuǎn)換器。它可以作為一個超快多定標/ TOF系統(tǒng)在質(zhì)譜和時間分辨單離子或光子計數(shù)器

現(xiàn)代光子計數(shù)技術(shù)的優(yōu)點是:有很高的信噪比。基本上消除了光電倍增管的高壓直流漏電流和各倍增極的熱電子發(fā)射形成的暗電流所造成的影響。可以區(qū)分強度有微小差別的信號,測量精度很高。抗漂移性很好。在光子計數(shù)測量系統(tǒng)中,光電倍增管增益的變化、零點漂移和其他不穩(wěn)定因素對計數(shù)影響不大,所以時間穩(wěn)定性好。有比較寬的線性動態(tài)范圍,最大計數(shù)率可達測106s-1。量數(shù)據(jù)以數(shù)字顯示,并以數(shù)字信號形式直接輸入計算機進行分析處理。

光子探測技術(shù)再高分辨率的光譜測量,非破壞性物質(zhì)分析,高速現(xiàn)象檢測,精密分析,大氣測污,生物發(fā)光,放射探測,高能物理,天文測光,光時域反射,量子密鑰分發(fā)系統(tǒng)等領域有著廣泛應用。


詳細參數(shù)


四通道輸入超快多定標/ TOF

計數(shù)率(max):1 GHz max

Start- and Stop-輸入:內(nèi)置900 MHz的+/-3 V下降沿鑒別器,靈敏度:30毫伏

三種工作模式:連續(xù)(環(huán)繞),掃描和連續(xù)后停止

TTL同步輸出觸發(fā)外部設備,F(xiàn)AST-NIM輸出可選

預置的32位計數(shù)器的掃描

PCI兼容的電路板設計

多達四個P7888可以在一臺PC進行操作

8位數(shù)字I / O端口

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