Spectroscopy in forensic science, Study notes of Forensics

Download Spectroscopy in forensic science and more Study notes Forensics in PDF only on Docsity!

a ery SpecTRO SCOPY 5 eee, ; : ctrescopy : ANCA S96 Mpa s act , | (a: . E ea thet tinvolves the uniueraptieys Bice ft ypaietion cemey with metter tb study othe properties of substances, a | | a critical tool in forensic ecience for iderstety ing and gpantitying fe “eubstow ces” based » on their spectral Signatures. : | Erectromagnee Rodiatidn (EMR) ©" volo et, ! Lema is form of energy that travels through Space at:.the speed of lobe m the forme cf woves . Tt, has both electric and mognitic field Compenerte, that ‘cécillate perpendicular) te each other and ‘the direction of wave Prtpacatin| « EMR con Be Characterized by its. nave length O), Frequency Cv) Ohd eae (€) which are interrelected by the. eqvations : : | Ge bh Vl : ce CoA) | Pas oe — | ‘ A Me dbus. J y where hh = Planck's ‘constant £6.626%10 75 C = Speed of light = 3x10™h) - Gece Ned — ssa ; E | Gpectrorn of Electro magne The spectrum of EMR | ref which is divic ; y S to the entire rang: of electromagnetic rodiation, ‘different regions based On wavelength arel requ ql + The main regions the EMR spectrum from longest Hs Siete ae Cor from Tomest to highest! Frequeney) include | | =H Radio woves : ‘used iv) Gienmonicection techro logies y they, have the longest woxeleng! 3} and _ the loosest frequencies: , a} £4 : “2: Mirowaves, : Found in radar, and, microwave oVers,they have chorter > wavelengtis, Man vodio. waves iFoek V sc) 3 Tnfretred COR): “Arecioted with heat, 3 eal ecioapandeeneett ins therm imeging and wr forensic analysis ty detect organic mnoterials. C Scanned with OKEN Scanner