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请问X射线探测与γ射线探测的区别是什么
客星晨出东方
1年4个月前
回复于
核技术与核仪器
内容:虎哥的意思是对于能量较低的射线(也就是你所谓的x射线),该
探测
器能够以较高的效率响应,对于能量较高的射线,会发生类似过穿的效果,射线直接穿过去了,来不及响应,故而效率较低,因此这个
探测
器适合
探测
能量较低的射线
试制低成本光电PIN探测器
杂工1544
3年1个月前
回复于
核技术与核仪器
内容:这个东西改造一下,仔细写写投晶体大赛吧,题目我都给想好了:《【论文】一种可以用于闪烁体
探测
器的光电
探测
装置》
用APD制作闪烁体探测器的设想
GiroPetrenko
4年3个月前
回复于
核技术与核仪器
极客DIY
内容:捡垃圾闪烁
探测
器不香吗?
非线性结点探测器(半导体探测器,电子设备探测器)原理及实验验证
虎哥
6年3个月前
回复于
仪器仪表
内容:接收机需要-140dBm的灵敏度,该灵敏度在频谱仪上是用1Hz的RBW实现的(未开前放),但在
探测
器上这么做就很不现实,一个是速度慢,另一方面是频率稳定度没有这么高。,所以目前这类
探测
器都不算“敏捷”,
探测
结果显示的滞后是比较严重的。
FJ373n - γ便携式中子伽马辐射仪探头拆解
氦
2年3个月前
回复于
拆机鉴赏
核技术与核仪器
内容:感觉还是有点奇怪,这个里面探头既然是做成一个类似于周向
探测
而不是做成片状那种有方向性的结构,再加上很长的杆子,感觉更像是一种要伸到一些狭小空间中使用的探头
拆解医用ECT,伽马相机
slof
4年10个月前
回复于
核技术与核仪器
拆机鉴赏
内容:机架内部没有设置滑环类机构,
探测
器与控制箱用电缆直接连接,有一组弹性张紧装置把电缆拉紧,防止旋转时缠绕。
简单设备下硫化铅半导体薄膜的制备及NTC特性初探
smith
5年5个月前
回复于
电子技术
化学
内容:这个难度就太大了,我觉得业余或者一般高校实验室用化学沉积法最多做到四象限
探测
器的程度。,搜了一下某宝,好像也有国产的硫化铅
探测
器上市了,但是依然还是比较贵。
【半水】拆个射线探头
氦
3年3个月前
回复于
拆机鉴赏
核技术与核仪器
内容:层主说的应该是这个吧,之前看过这个开源项目,是用四个bpw34并联或者一个bpx61(金封玻璃窗口的,使用时把窗口敲碎再和待检测物一起遮光,主要
探测
α),不过看原文描述四个bpw34一分钟本底也就几个脉冲
国产闪烁体+半导体双探头辐射仪拆解
毛子
2年4个月前
回复于
核技术与核仪器
拆机鉴赏
内容:对于其机器到手拆卸工作与说明书对比之后,我也很诧异,明明没有管为什么要写有管;与我之前接触到的同型号机器,不同
探测
器材质,一样说明书有异曲同工之妙😂
FJ373n - γ便携式中子伽马辐射仪探头拆解
巨大橘子
2年3个月前
回复于
拆机鉴赏
核技术与核仪器
内容:
探测
器的选用可能是历史遗留产物,我国似乎在一段时期中大量使用了这种闪烁体杯子,设计的初衷大概是为了良好的角响应,然后又被用到这里来了,能用就行,大概(
请帮忙分析微波水分仪原理
sys_suweixiao
7年5个月前
发表于
电子技术
内容:2.不同探头
探测
深度不一样,这个小探头
探测
深度2~3cm,大探头
探测
深度25~30cm,这个怎么实现呢?
拆解医用ECT,伽马相机
匿名用户
1年1个月前
回复于
核技术与核仪器
拆机鉴赏
内容:可以看到
探测
器外壳非常厚,采用外层钢板内衬铅板的结构,厚度约20mm,光电管、闪烁体、放大电路等全部包围在铅室内,pmt感光端面是圆形,镶嵌在一块厚度约20mm铅板中,59个pmt有53个是较粗口径型号
自制低成本α粒子探测器(α粒子能谱)
qwe
2年6个月前
回复于
核技术与核仪器
内容:谢谢回答,不过如果是x射线的话,就没法用普通PIN
探测
了,如果用专业
探测
器,看起来大多数场合下不如直接做x射线荧光光谱有优势
制作一台可控核聚变装置(fusor)
Arutoria
4年2个月前
回复于
核技术与核仪器
内容:那个idefender是做铟活化用的,中子
探测
器用的氦3管正在校准,还有一台测γ的电离室没到,所以文中才说了,
探测
系统“即将完成”
中山大学“天琴计划”招聘教师与研究人员
warmonkey
9年5个月前
发表于
天文与空间科学
内容:此外,引力波
探测
将提供全新的天文观测手段,开启引力波天文学新纪元。,目前,中山大学正在组建研究小组开展我国空间引力波
探测
计划任务的预先研究,制定我国空间引力波
探测
计划的实施方案和路线图,提出“天琴”空间引力波
探测
计划,并开展关键技术研究。 ,,发射三颗地球高轨卫星进行引力波
探测
。 ,天琴计划的推动将使中山大学将成为国际上引力波
探测
与空间精密测量领域的学术研究重镇之一,并成为推动后续一系列空间精密测量物理实验的研究基地。,1.招聘单位:中山大学天文与空间科学学院2.招聘方向:(1) 引力理论:广义相对论、引力理论、宇宙学等(2) 空间引力实验:月球激光测距、引力波
探测
、无拖曳控制、空间任务系统模拟与数据分析(3)
关于电子双缝干涉实验的疑问
笑傲春秋
4年6个月前
回复于
极客DIY
内容:为了检测是否有电子经过,需要在每侧分别放置两个光源,向两个缝附近不断发射一定波长的光子,如只有一侧的
探测
器检测到相同波长的光子发射回来,说明光子从这一侧通过,波函数也出现坍缩,干涉条纹消失。,根据楼主的设计,当
探测
器
探测
到一个光子后,我们无法知道该光子是不是从狙击手身体上发射的,我们也不能确定光子是直接射入到
探测
器的,还是从电子反射到
探测
器的,因此波函数不会出现坍缩。
Saphymo个人剂量计的拆解(多图)
twz562
3年10个月前
回复于
核技术与核仪器
拆机鉴赏
内容:另外,欧洲一些国家(法国,芬兰等)似乎特别喜欢用半导体做辐射
探测
器,几款比较知名的几款半导体
探测
器都是欧洲那边的。
文献:碘化钠(Tl)单晶的生长
RodTech
9年11个月前
发表于
化学
核技术与核仪器
内容:最近从淘宝上买来大大小小一些这种晶体,可是最大的不过50mm直径,对于
探测
空气中gamma还是小了,妄想着自己长一个,可是看了这文章,有点复杂,遂放弃了,若是谁有经验的,还请赐教如何在业余条件长个比较靠谱的单晶
Saphymo个人剂量计的拆解(多图)
氦
3年10个月前
回复于
核技术与核仪器
拆机鉴赏
内容:确实,这个
探测
器的资料上显示它传输数据有红外和电磁两种方式。
Analog and Digital Electronics for Detectors
虎哥
5年0个月前
文件:核
探测
器的周边电子电路
立即下载
PDF 927.60KB
【开坑】基于ThereminoMCA的伽马能谱仪
RodTech
4年11个月前
回复于
核技术与核仪器
内容:面垒
探测
器适用于alpha能谱,性能很好,可以做得面积很大,就是为了高分辨率需要抽真空和避光,伺候起来很麻烦。。。。,高分辨率的硅漂移
探测
器也很便宜了,ebay一套带上USB的mca差不多一万,对于实用x荧光已经是极低门槛,更加廉价的硅pin
探测
器甚至只需2k左右即可买到全新的。
金属探测器的问题,比较急。
mass_lynnxy
17年1个月前
回复于
电子技术
内容:立式
探测
器 手持式
探测
门 大型探矿器检测机
拆解医用ECT,伽马相机
鹰图小盆友
4年8个月前
回复于
核技术与核仪器
拆机鉴赏
内容:只是采用内部
探测
器旋转扫描,拍摄各个切面的X射线透视图,再利用一定的算法,如傅里叶重建算法、反投影重建算法和级数展开算法等来确定被测物体或工件断层的某种物理量的三维分布,再将这种物理量(如密度)的数值以灰度的形式表示出来,CT机一般由射线源系统(X射线管、高频高压发生器、控制器、冷却系统)、
探测
系统、采集系统、机械系统、自动控制系统、图像重建处理系统和辅助系统组成。
关于测日本核废水的方法
kkagome
3年7个月前
发表于
核技术与核仪器
物理
内容:因为氚是纯β,而且能量很低18.6kev,所以普通的辐射
探测
器是测不到,像GM管。
雷电预警器!
立棍
13年5个月前
回复于
电子技术
内容:还玩马可尼一样的雷电
探测
器。,
探测
到雷电后开始计数,等到雷声传出来后计数停止。,根据时间差能
探测
雷电距离。
【说干就干】环氧树脂闪烁体的制备与探测特性实验
已注销用户
4年11个月前
回复于
核技术与核仪器
内容:ZnS(Cu)是夜光粉吧,理论上确实可以
探测
α粒子 不过我首先要解决环氧树脂闪烁体的问题(
探测
βγ射线),这是这次实验的主题。
RAM-01碲锌镉CZT探测器小辐射计拆解
超密度氢
7个月28天前
回复于
核技术与核仪器
内容:目前全世界能生产CZT
探测
器的只有4~5家,中国只有迪泰克一家,据说西工大一群专家研究了30年才突破,最近刚进行了B轮融资。,他们一个1CM^3的CZT
探测
器要价10万元左右,662keV分辨率1.8%以内。
KC761能谱仪日常进度(含设计变更公告)专用帖
西葫芦
1年2个月前
回复于
核技术与核仪器
内容:V1.22固件(其实以前好像也有,忘了提了):在SPECT或者DOSE界面有意或无意切换到PIN
探测
器的时候,因为较高的噪声读数(几个uSv/h),同时也会导致DOSE CHART记录到较高的读数,从而导致显示比例发生大幅度变化,能谱图在两个
探测
器上是独立显示的,那DOSE CHART能否也可以通过某个设置项来决定哪些
探测
器参与画图,或者干脆分成多个图?
请问X射线探测与γ射线探测的区别是什么
烙铁王子
1年4个月前
回复于
核技术与核仪器
内容:非常感谢您的回复他主打的市场确实是X射线
探测
,我的意思是这个方法就测不了γ吗,还是有些疑惑。,您说“对于APD或者PIN来说,它的结厚度是有限的,一般对低能射线更敏感,高能射线多数照透了,与之作用者较少,
探测
效率较低,故通常用于x射线
探测
。”,这是直接辐射
探测
的PD吧,加闪烁体应用的话,响应的是闪烁体的荧光吧,毕竟这些PD的波长响应范围才190nm~1000nm。
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