Capture Definition and 140 Threads

Hi! I hope I've posted this in the right section, but it definitely deals with the nucleus, so here goes. I'm doing a presentation on Boron Neutron Capture Therapy, which, if you don't know, puts boron inside tumor cells, shines a neutron beam onto those cells, which causes the boron inside...

Hi all, I'm working in application where a camera needs to see in a dark closed area. Imagine a small box, say 8"x8" and there is a camera trying to record inside. In order to get images, we need some light. The problem is how to determine how much light is needed without being too little...

i scanned french document and save it as image file to translate it but how can Capture Text form image and save it as txt file or word file which software will without need the scanner ?

To my understanding this is an electron in the K-Shell being absorbed by the the nucleus and along with a proton converted into a neutron with the emission of a neutrino. My question is what force is acting here? Nuclear? If so, how can nuclear forces act on an electron, when the range of...

I have been searching for a generic model of MOSFET/BJT transistors for Capture CIS. I would like something where I can easily edit K, V-Threshold, and B_f (beta-f) without messing with channel lengths and widths and such. Does anyone know where I can download such a thing?

I am planning to do a proposal about capturing anti-matter and containing it by creating a trap with light. I figured I want to use light because if I use magnetic or electric fields then I would only be able to capture charged anti-particles. My goal is to capture anti-atoms by using a light...

I have a decent understanding of neutron-induced reactions in heavy nuclei (fission, capture), but less so when light nuclei are involved. I do know of Li6 + n --> He4 + T and the Li7 equivalent. Those reactions are more like nucleus splitting (fission). My question is: do neutron capture...

A 20Hz TTL waveform is applied to the circuit... The Attempt at a Solution - I'm working an activity for my lab tomorrow (not actually due for any points, just to help us get an understanding of the lab), but I'm not really sure what it means when it says a "20 Hz TTL waveform"...

Wikipedia said U-238 is better with capturing fast neutrons than slow neutrons. shouldn't it be the other way round? I thought U-238 is not fissile but is fissionble by neutrons with high enough K.E, and doens't fast neutrons have higher K.E.??

I have a 1sec serial data stream and my cheap PC based oscilloscope cannot capture it with good enough resolution where I can read the data. What can I do to capture this serial data stream with good resolution? My scope has only edge trigger function. I'm thinking of building a circuit...

I know this may not be the right place to post this question, but I figured some of you engineering folks might have some suggestions. I am looking for a way of capturing images through a device that easily interfaces with a computer. Scanners are out of the question for my application for...

Hi I was wondering how can antennas capture + receive Electromagnetic waves I was thinking, in particular of FM Transmitters Antennas, and Fm receiver Antennas. And also, how come metals act as a shield to EM Waves I know that antennas have a resistance, and that they consume Energy by...

Cross section means the effective size of a nucleus for capturing a neutron, am I right? But what makes the cross sections for different nucleus different? I am a bit puzzled, why the cross section for Boron(for example) is so high?

I have a mpeg video which I can play using Windows Media Player. I tried to do a screen capture using Paint Shop Pro. However the screen capture was unable to capture the image of the video on my screen. How can I get a video image into a jpeg file? Pete

Hi! Does anybody know how i can capture images from my USB camera directly into Matlab? I'd appreciate suggestions for indirect methods too. I don't have the advantage of the Image Acquisition Toolbox in Matlab, making my task slightly more difficult. Suggestions that I've had include...

AMCAP... error message...sorry, you have no video capture hardware?? Hi, Just bought a webcam (pc14-8 led 1.3 megapixel web cam. All I want to do is record some video for youtube but I know little about video capture hardware/software. According to the manual I have the correct system...

Anybody have good values and a source for thermal neutron capture cross section for Ba-133, both ground and excited states? CRC Handbook gives 4 barns, but wanted to verify it. Thanks.

What is the difference between electron capture, and electron-proton collions? My textbook has the feynman diagram of electron capture as a proton decaying into a neutron, and the proton emmiting a W+ boson, which is received by an electron, which then decays into a neutrino. However, the...

Looking for a "mainstream" explanation for gamma gays and nuetron capture signatures. One of Elizabeth's homework problems got me to thinking: Now if Elizabeth is reading this thread, please note that the "correct" answer (in mainstream thinking today) is probably a). However...

I'm writing a paper on Thorium utilization in nuclear reactors. In this connection I'm looking for figures which describe the neutron capture and neutron fission cross sections over a wide energy range (not only thermal). There are probably some online resources unbeknown to me, any hints?

OK. Here's a stupid little thing I need to do: I need to capture my screen to develop an instruction manual for some software. I need my screen capture program to capture my mouse pointer on the screen. All of the freeware programs I have tried do not do this. The built in Windows screen...

How would the solar system capture an extra solar planet ?? Hello! - my first post here...and an informative site to be sure! I have checked the archives here and checked additional online resources, the point of my question being... How would the solar system capture an extra solar...

According to a textbook that I was looking at, electron capture and electron-proton collisions both produced a neutron and an antineutrino, but one was mediated by a W+ particle and the other by a W-. Is this correct, or are they interchangeable?

Need help to find a way to capture waste heat from diesel electric generators (45 KW) to heat water for small hotel use (45 rooms + kitchen). Exploring all options: jacket water, oil, exhaust. Anyone please help.

Hi all, This is first time I am using Pspice. I have 9.1 student version. I am using Pspice capture user's guide for reference. Following an example from there, I was trying to do bias point calculation using Capture. I have no knowledge about Pspice and I am following the user's guide only...

Hi...I'm trying to learn how to use these programs. I have the demo versions of OrCad 10...The whole suite. I've been trying to lay out a basic 1-channel audio amplification schematic. I've attached what I have so far. Can someone explain to me how to add a power source, and how to simulate...

I apologize that me first post is such a silly one. I am trying to solve problem 1.2 in Stacey. It asks for the probability of a 1 MeV neutron slowing to thermal. I can determine the number of collisions required in the water / uranium environment. But, when I go to select the proper...

Recently the radation physics class I am taking reviewed decay and I wondered how beta minus decay and electron capture can both emit neutrinos. I tried asking my professor, but I do not think I explained my question well enough to him. To explain my mindset, imagine you have only one...

Hello guys, I'm looking for an application to capture audios from videos, best if into .mp3 format. It'd also be great if I can modify quality by myself. I'd rather prefer it to be free, but doesn't have to. Thanks,

Is there a free program that will capture a streaming video from either Windows Media Player or Real Video?

Hi, Is it possible to induce decay in a radioactive element by introducing vast amounts of high-energy electrons in the hope that they would be absorbed via electron capture? I was thinking about how to use up all the reactor waste that the US generates (I live in Washington State, a great...

taking a set of questions and came across this one: "Capture of a neutron by nickel-60 produces a proton and what new element or isotope ? " I thought it was copper-61 since it goes through beta decay as indicated by the proton but supposedly it is not... please help

I installed Pspice Capture Lite from my student cd that came with my EE book, but the only things in the library are what I DON'T need! :cry: It has no analog voltage or current source!? Does anyone have or know where I can download an extended library of parts? Also, can anyone tell me how to a...

for the following question: a proton capatures a negative muon (mass=207me). Find the ionization energy of the atom. my problem: the answer in my textbook says to use 13.6eV for the E1 ionization energy, but why? i thougth that that value is only true for hydrogen atoms, but that question...

Electron capture is a form of beta-decay. Here, an orbital electron(usually in K-shell) can combine with proton to form a neutron and a neutrino. p + \beta^{-}\rightarrow n + \nu Can someone explain me why this phenomenon occurs and under what conditions?

We say human rights are at the top of our agenda, yet, war crimes have occurred and are often put to halt at a very slow pace. Why is this the case? Doesn't this show that international governace just isn't doing it or is it really tehre faultl

Can someone tell me how fast the human eye can capture an image?and how fast it can notice a change, " notice a pinprick of light", for instance. :smile:

two very large solenoids (tons maybe ) Stacked vertically, very large capacity wire coil w/ iron core. upper solenoid attached to guide rails to keep its trajectory vertical. now introduce current I.E. lightning strike. how can one tell if the upper solenoid will be lifted or how far it would...

My humble apologies to those people involved in the "Saddam Capture" discussion. I am also sorry for creating havoc with my posts and opinions. "United we stand . . . " ---------------------------------------------------------------------- Although I do not agree with Adam's opinion, I...

Looks like they caught him... However, I think the real question should be: Is this the real saddam, or is this a look-alike that the U.S. government has brought into justify their presence in Iraq?