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Fine structure: one and two electron spectra
  • Fine structure: one and two electron spectra

Fine structure: one and two electron spectra

공유
모델명
P2510600
브랜드
PHYWE
판매가
견적 문의
배송비
￦2,500 / 주문시결제(선결제) 조건별배송
택배
방문 수령지 : 경기도 고양시 덕양구 향동로 194(향동동) DMC아미 지식산업센터 501호

 

Features
Principle
To determine the wavelength, a spectrometer-goniometer is used. It consists of a dispersive element, which deflects light through an angle depending on the wavelength, and a goniometer to determine the angle of deflection of the light beam. As dispersive elements a grating and a flint prism are used. In case of single electron spectra the spin-orbit coupling produces doublet spectra. For measuring the splitting of the sodium 2P -levels the in nm-range, double lines from transitions involving these levels are observed with a dispersion grating. For the two electron spectra the transition from LS- to jj-coupling occurring from lighter to heavier elements is of importance, causing "forbidden" lines to appear with the heavier elements having larger atomic number Z. Here weaker lines may be observed using a dispersion prism allowing for less spectral resolution but better visibility because of less stray light.
Tasks
One-electron spectra:
1. Set up the spectrometer as a grating spectrometer and determine the grating constant using literature values for the visible spectral lines from a helium lamp.
2. With the determined grating constant measure the wavelengths of the observable sodium spectral lines belonging to the split 3 ²P level, determine the energy difference between the 3 ²P1/2 and 3 ²P3/2 level
Two-electron spectra:
1.  Set up the spectrometer as a prism spectrometer and determine the dispersion function of the flint prism using literature values for the visible spectral lines from a helium lamp.
2.  Determine the wavelengths of spectral lines of zinc, cadmium, and mercury. Observe the increase of triplet-singulet transitions with increasing atomic number.
What you can learn about
Grating and prism spectrometer
Energy level
Excitation energy
Selection rules for optical transitions
Electron spin
Orbital angular momentum
Spin magnetic moment
Orbital magnetic moment
Spin-orbit interaction
Multiplicity
Doublets
Para-helium
Ortho-helium
Exchange energy
Singlet series
Triplet series
Forbidden transitions

 

 

 

 

Descripsion Code Q'ty
PHYWE Power supply for spectral lamps, 230 VAC/50 Hz 13662-97 1,00
Lamp holder pico 9 for spectral lamps 08119-00 1,00
Spectral lamp Zn, pico 9 base 08120-11 1,00
Magnifier with handle, 6x, d=50 mm 87004-03 1,00
Spectral lamp Cd, pico 9 base 08120-01 1,00
Spectral lamp Hg 100, pico 9 base 08120-14 1,00
Spectral lamp He, pico 9 base 08120-03 1,00
Diffraction grating, 600 lines/mm 08546-00 1,00
Spectral lamp Na, pico 9 base 08120-07 1,00
Tripod base PHYWE 02002-55 1,00

 

 

배송안내

- 배송비 : 기본배송료는 2,500원 입니다. (도서,산간,오지 일부지역은 배송비가 추가될 수 있습니다)  100,000원 이상 구매시 무료배송입니다.

- 본 상품의 평균 배송일은 2일입니다. 설치 상품의 경우 다소 늦어질수 있습니다.

교환 및 반품안내

- 개봉으로 상품 가치 훼손 시에는 상품수령후 7일 이내라도 교환 및 반품이 불가능합니다.

- 저단가 상품, 일부 특가 상품은 고객 변심에 의한 교환, 반품은 고객께서 배송비를 부담하셔야 합니다(제품의 하자,배송오류는 제외)

- 일부 상품은 신모델 출시, 부품가격 변동 등 제조사 사정으로 가격이 변동될 수 있습니다.

환불안내

- 상품 청약철회 가능기간은 상품 수령일로 부터 7일 이내 입니다.

AS안내

- 소비자분쟁해결 기준(공정거래위원회 고시)에 따라 피해를 보상받을 수 있습니다.

- A/S는 판매자에게 문의하시기 바랍니다.

이미지 확대보기Fine structure: one and two electron spectra

Fine structure: one and two electron spectra
  • Fine structure: one and two electron spectra
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