LDRs, or light-dependent resistors, can detect X-rays, but their sensitivity is low, making them inefficient for this purpose. The discussion highlights that while LDRs, typically made of CdS, respond to X-rays, they are not ideal for accurate detection. Alternatives like semiconductor crystals are mentioned, which can form electron-hole pairs and provide better sensitivity. The conversation also suggests exploring phosphor coatings used in fluorescent lights or CRTs for improved detection capabilities. Overall, while LDRs can detect X-rays, their effectiveness is limited compared to other methods.
#1
kocthu
13
0
Can LDR detect the X-Rays? Please help me. If it does, I have to make the x ray detector for bounce back conditions.
Does LDR stand for light dependent resistor?
What does the LDR manufacture say about X-Ray detection?
#3
Dmytry
510
1
I guess it can, if you have a lot of x-rays. I think the sensitivity would be rather low though.
#4
Mike_In_Plano
700
35
I've seen it done with semiconductor crystals where the x-ray forms electron hole pairs. If the incidence of photos striking is low enough, the energy of the photon can be determined by the amount of charge released. This is handy when determining the material types by X-ray fluorescence
#5
kocthu
13
0
Because X-Ray and Light are both Electromagnetic waves. Thank you very much. I'm going to test that device.
#6
jsgruszynski
309
19
LDRs are generally CdS, a semiconductor, so yes they probably will respond to X-rays but not very efficiently.
#7
skeptic2
1,776
60
Have you tried any of the various phosphor coatings use in florescent lights or CRTs?